Gen:Variant.Mikey.50384 (B) (Emsisoft), Gen:Variant.Mikey.50384 (AdAware), Trojan.NSIS.StartPage.FD (Lavasoft MAS)Behaviour: Trojan
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: f9bea7e8b290533879c4535915fa803d
SHA1: 55ee39b7cb3ffd7dadb9a52d6a30ef496919f6c7
SHA256: 3844846856948a828a5dfe7bddba35a4d61db2da89720e039913424d13812e2f
SSDeep: 6144:H0hNLJgoAUGV BSNXwPMsFiv6BtgZHbGYXwEg:UVgoAUGV UNAPMssG2ZyYXw
Size: 272622 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2015-08-04 05:43:56
Analyzed on: Windows7 SP1 32-bit
Summary: Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).
Dynamic Analysis
Payload
No specific payload has been found.
Process activity
The Trojan creates the following process(es):No processes have been created.The Trojan injects its code into the following process(es):
%original file name%.exe:2712
Mutexes
The following mutexes were created/opened:No objects were found.
File activity
The process %original file name%.exe:2712 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\ButtonEvent.dll (12 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\ns29DF.tmp (14 bytes)
C:\Users\"%CurrentUserName%"\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E0F5C59F9FA661F6F4C50B87FEF3A15A (312 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\System.dll (22 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\Cab7E29.tmp (51 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\nsDialogs.dll (21 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\inetc.dll (46 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\Cab7E17.tmp (51 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\nsExec.dll (14 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\modern-wizard.bmp (26 bytes)
C:\Users\"%CurrentUserName%"\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E0F5C59F9FA661F6F4C50B87FEF3A15A (893 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\Tar7E18.tmp (2712 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\Tar7E2A.tmp (2712 bytes)
The Trojan deletes the following file(s):
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\ns29DF.tmp (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\Cab7E17.tmp (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\Cab7E29.tmp (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\Tar7E18.tmp (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsh2857.tmp (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\Tar7E2A.tmp (0 bytes)
Registry activity
The process %original file name%.exe:2712 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D69B561148F01C77C54578C10926DF5B856976AD]
"Blob" = "0F 00 00 00 01 00 00 00 20 00 00 00 52 29 BA 15"
[HKLM\SOFTWARE\Microsoft\Tracing\f9bea7e8b290533879c4535915fa803d_RASMANCS]
"FileDirectory" = "%windir%\tracing"
"FileTracingMask" = "4294901760"
[HKLM\SOFTWARE\Microsoft\Tracing\f9bea7e8b290533879c4535915fa803d_RASAPI32]
"ConsoleTracingMask" = "4294901760"
"EnableConsoleTracing" = "0"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "0"
[HKLM\SOFTWARE\Microsoft\Tracing\f9bea7e8b290533879c4535915fa803d_RASMANCS]
"MaxFileSize" = "1048576"
"EnableConsoleTracing" = "0"
[HKCU\Software\Classes\Local Settings\MuiCache\2D\52C64B7E]
"LanguageList" = "en-US, en"
[HKLM\SOFTWARE\Microsoft\Tracing\f9bea7e8b290533879c4535915fa803d_RASAPI32]
"FileDirectory" = "%windir%\tracing"
[HKLM\SOFTWARE\Microsoft\Tracing\f9bea7e8b290533879c4535915fa803d_RASMANCS]
"EnableFileTracing" = "0"
[HKLM\SOFTWARE\Microsoft\Tracing\f9bea7e8b290533879c4535915fa803d_RASAPI32]
"EnableFileTracing" = "0"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "46 00 00 00 3C 00 00 00 09 00 00 00 00 00 00 00"
[HKLM\SOFTWARE\Microsoft\Tracing\f9bea7e8b290533879c4535915fa803d_RASMANCS]
"ConsoleTracingMask" = "4294901760"
[HKLM\SOFTWARE\Microsoft\Tracing\f9bea7e8b290533879c4535915fa803d_RASAPI32]
"FileTracingMask" = "4294901760"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"AutoDetect" = "1"
[HKLM\SOFTWARE\Microsoft\Tracing\f9bea7e8b290533879c4535915fa803d_RASAPI32]
"MaxFileSize" = "1048576"
Proxy settings are disabled:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"
The Trojan deletes the following value(s) in system registry:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyOverride"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyServer"
[HKLM\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates]
"D69B561148F01C77C54578C10926DF5B856976AD"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
Dropped PE files
MD5 | File path |
---|---|
55788069d3fa4e1daf80f3339fa86fe2 | c:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\ButtonEvent.dll |
1209356a1e393cacf08ff4cede226b13 | c:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\System.dll |
d7a3fa6a6c738b4a3c40d5602af20b08 | c:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\inetc.dll |
0975b6008916c7bea5bb2b5d0e020b8c | c:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\nsDialogs.dll |
47452b427911d43b8fef70b6ab1d48e7 | c:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\nsExec.dll |
HOSTS file anomalies
No changes have been detected.
Rootkit activity
No anomalies have been detected.
Propagation
Removals
Remove it with Ad-Aware
- Click (here) to download and install Ad-Aware Free Antivirus.
- Update the definition files.
- Run a full scan of your computer.
Manual removal*
- Terminate malicious process(es) (How to End a Process With the Task Manager):No processes have been created.
- Delete the original Trojan file.
- Delete or disinfect the following files created/modified by the Trojan:
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\ButtonEvent.dll (12 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\ns29DF.tmp (14 bytes)
C:\Users\"%CurrentUserName%"\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E0F5C59F9FA661F6F4C50B87FEF3A15A (312 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\System.dll (22 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\Cab7E29.tmp (51 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\nsDialogs.dll (21 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\inetc.dll (46 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\Cab7E17.tmp (51 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\nsExec.dll (14 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\modern-wizard.bmp (26 bytes)
C:\Users\"%CurrentUserName%"\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E0F5C59F9FA661F6F4C50B87FEF3A15A (893 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\Tar7E18.tmp (2712 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\Tar7E2A.tmp (2712 bytes) - Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
- Reboot the computer.
Static Analysis
VersionInfo
No information is available.
No information is available.
PE Sections
Name | Virtual Address | Virtual Size | Raw Size | Entropy | Section MD5 |
---|---|---|---|---|---|
.text | 4096 | 23437 | 23552 | 4.48787 | bbe0030c61a91dde983517f14a25ba56 |
.rdata | 28672 | 5302 | 5632 | 3.57624 | f47a33c87962605f684d2892c2934040 |
.data | 36864 | 109820 | 512 | 1.2639 | 83c440f13a7f197316ad93416fceac9e |
.ndata | 147456 | 184320 | 0 | 0 | d41d8cd98f00b204e9800998ecf8427e |
.rsrc | 331776 | 103544 | 103936 | 3.82609 | dd2304ee26eaa234df27331fb60aaa68 |
Dropped from:
Downloaded by:
Similar by SSDeep:
Similar by Lavasoft Polymorphic Checker:
Network Activity
URLs
URL | IP |
---|---|
hxxp://apps.digsigtrust.com/roots/dstrootcax3.p7c | |
hxxp://apps.identrust.com/roots/dstrootcax3.p7c | 192.35.177.64 |
www.demtxr.com | 64.111.117.81 |
dns.msftncsi.com | 131.107.255.255 |
IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)
Traffic
GET /roots/dstrootcax3.p7c HTTP/1.1
Connection: Keep-Alive
Accept: */*
User-Agent: Microsoft-CryptoAPI/6.1
Host: apps.identrust.com
HTTP/1.1 200 OK
Date: Mon, 19 Dec 2016 17:16:42 GMT
Server: Apache
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
Last-Modified: Fri, 19 Oct 2012 20:08:11 GMT
Accept-Ranges: bytes
Content-Length: 893
Cache-control: max-age=86400
Keep-Alive: timeout=5, max=100
Content-Type: application/x-pkcs7-mime
0..y..*.H.........j0..f...1.0...*.H.........N0..J0..2.......D.....'..09...@k0...*.H........0?1$0"..U....Digital Signature Trust Co.1.0...U....DST Root CA X30...000930211219Z..210930140115Z0?1$0"..U....Digital Signature Trust Co.1.0...U....DST Root CA X30.."0...*.H.............0............P..W..be......,k0.[...}.@......3vI*.?!I..N..>H.e...!.e.*.2....w..{........s.z..2..~..0....*8.y.1.P..e..Qc....a.Ka..Rk...K.(.H......>.... .[.*....p....%.tr.{j.4.0...h.{T.....Z...=d......Ap..r.&.8U9C....\@..........%.......:..n.>..\..<..i....*.)W..=....]......B0@0...U.......0....0...U...........0...U..........{,q...K.u...`...0...*.H...............,...\...(f7:...?K.... ]..YD.>.>..K.t.....t..~.....K. D.....}..j.....N...:.pI............:^H...X._..Z.......Y..n.......f3.Y[....sG. ...7H..VK....r2...D.SrmC.&H.Rg.X..gvqx...V..9$1....Z0G..P.......dc`........}...=2.e..|.Wv...(9..e...w.j..w........).....55.1.HTTP/1.1 200 OK..Date: Mon, 19 Dec 2016 17:16:42 GMT..Server: Apache..X-Frame-Options: SAMEORIGIN..X-XSS-Protection: 1; mode=block..Last-Modified: Fri, 19 Oct 2012 20:08:11 GMT..Accept-Ranges: bytes..Content-Length: 893..Cache-control: max-age=86400..Keep-Alive: timeout=5, max=100..Content-Type: application/x-pkcs7-mime..0..y..*.H.........j0..f...1.0...*.H.........N0..J0..2.......D.....'..09...@k0...*.H........0?1$0"..U....Digital Signature Trust Co.1.0...U....DST Root CA X30...000930211219Z..210930140115Z0?1$0"..U....Digital Signature Trust Co.1.0...U....DST Root CA X30.."0...*.H.............0............P..W..be....
<<< skipped >>>
Map
The Trojan connects to the servers at the folowing location(s):
Strings from Dumps
%original file name%.exe_2712:
.text
.text
`.rdata
`.rdata
@.data
@.data
.ndata
.ndata
.rsrc
.rsrc
Vj%SSS
Vj%SSS
uDSSh
uDSSh
hu2.iu
hu2.iu
verifying installer: %d%%
verifying installer: %d%%
... %d%%
... %d%%
hXXp://nsis.sf.net/NSIS_Error
hXXp://nsis.sf.net/NSIS_Error
%u.%u%s%s
%u.%u%s%s
.DEFAULT\Control Panel\International
.DEFAULT\Control Panel\International
RegDeleteKeyExA
RegDeleteKeyExA
Software\Microsoft\Windows\CurrentVersion
Software\Microsoft\Windows\CurrentVersion
*?|/":
*?|/":
%s%s.dll
%s%s.dll
%s=%s
%s=%s
GetWindowsDirectoryA
GetWindowsDirectoryA
KERNEL32.dll
KERNEL32.dll
ExitWindowsEx
ExitWindowsEx
USER32.dll
USER32.dll
GDI32.dll
GDI32.dll
SHFileOperationA
SHFileOperationA
ShellExecuteA
ShellExecuteA
SHELL32.dll
SHELL32.dll
RegDeleteKeyA
RegDeleteKeyA
RegCloseKey
RegCloseKey
RegEnumKeyA
RegEnumKeyA
RegOpenKeyExA
RegOpenKeyExA
RegCreateKeyExA
RegCreateKeyExA
ADVAPI32.dll
ADVAPI32.dll
COMCTL32.dll
COMCTL32.dll
ole32.dll
ole32.dll
ers\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\nsDialogs.dll
ers\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\nsDialogs.dll
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\nsDialogs.dll
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp\nsDialogs.dll
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp
@.reloc
@.reloc
SIZE %s
SIZE %s
REST %d
REST %d
Proxy-authorization: basic %s
Proxy-authorization: basic %s
Authorization: basic %s
Authorization: basic %s
Content-Type: application/x-www-form-urlencoded
Content-Type: application/x-www-form-urlencoded
Content-Length: %d
Content-Length: %d
wininet.dll
wininet.dll
FtpCommandA
FtpCommandA
%s:%s
%s:%s
%u bytes
%u bytes
%u kB
%u kB
%u MB
%u MB
%s - %s
%s - %s
%d:d:d
%d:d:d
/password
/password
Filename: %s
Filename: %s
NSIS_Inetc (Mozilla)
NSIS_Inetc (Mozilla)
(Err=%d)
(Err=%d)
Uploading %s
Uploading %s
InternetCrackUrlA
InternetCrackUrlA
FtpOpenFileA
FtpOpenFileA
FtpCreateDirectoryA
FtpCreateDirectoryA
HttpOpenRequestA
HttpOpenRequestA
HttpAddRequestHeadersA
HttpAddRequestHeadersA
HttpSendRequestA
HttpSendRequestA
HttpSendRequestExA
HttpSendRequestExA
HttpEndRequestA
HttpEndRequestA
HttpQueryInfoA
HttpQueryInfoA
WININET.dll
WININET.dll
inetc.dll
inetc.dll
Open URL Error
Open URL Error
URL Parts Error
URL Parts Error
FtpCreateDir failed (550)
FtpCreateDir failed (550)
Error FTP path (550)
Error FTP path (550)
Downloading %s
Downloading %s
%dkB (%d%%) of %dkB @ %d.dkB/s
%dkB (%d%%) of %dkB @ %d.dkB/s
(%d %s%s remaining)
(%d %s%s remaining)
;$;*;_;};
;$;*;_;};
_rb]cMDBw
_rb]cMDBw
nsw2867.tmp
nsw2867.tmp
s\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp
s\"%CurrentUserName%"\AppData\Local\Temp\nsw2867.tmp
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe
c:\%original file name%.exe
c:\%original file name%.exe
%original file name%.exe
%original file name%.exe
ers\"%CurrentUserName%"\AppData\Local\Temp\nsh2857.tmp
ers\"%CurrentUserName%"\AppData\Local\Temp\nsh2857.tmp
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\
369755511
369755511
#&_~9*^~[(^
#&_~9*^~[(^
)^}[$]}/!^|
)^}[$]}/!^|
(^}x([|D%Uv!
(^}x([|D%Uv!
%Xu" @`
%Xu" @`
ok} "${Nullsoft Install System v04-Aug-2015.cvs
ok} "${Nullsoft Install System v04-Aug-2015.cvs
1.0.4.4
1.0.4.4