Trojan.Win32.Monder.nwpc (Kaspersky), Backdoor.Generic.791041 (B) (Emsisoft), Backdoor.Generic.791041 (AdAware), SpyTool.Win32.Ardamax.FD, GenericEmailWorm.YR, SpyToolArdamax.YR (Lavasoft MAS)Behaviour: Trojan, Backdoor, Worm, EmailWorm, SpyTool
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: c28278f5b9a77f6fe0a1214be0da234b
SHA1: 2827854a550c9931574312d6bd50b04b01afaed0
SHA256: 7c312b1978874022080a51a8defb50c7ff5146d18899124da28077fe012c268f
SSDeep: 49152:TEhSrpUaofy58lP3iR78Q1LY9rWsLrkHn:AhSF3Sye3i9TZAqUS
Size: 1711616 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2012-09-10 14:01:12
Analyzed on: WindowsXP SP3 32-bit
Summary: Backdoor. Malware that enables a remote control of victim's machine.
Dynamic Analysis
Payload
Behaviour | Description |
---|---|
EmailWorm | Worm can send e-mails. |
Process activity
The Backdoor creates the following process(es):
%original file name%.exe:928
The Backdoor injects its code into the following process(es):
NHN.exe:1076
Mutexes
The following mutexes were created/opened:No objects were found.
File activity
The process %original file name%.exe:928 makes changes in the file system.
The Backdoor creates and/or writes to the following file(s):
%Documents and Settings%\All Users\Application Data\PVDOXG\NHN.exe (15021 bytes)
%Documents and Settings%\All Users\Application Data\PVDOXG\NHN.00 (2 bytes)
%Documents and Settings%\All Users\Application Data\PVDOXG\NHN.01 (80 bytes)
%Documents and Settings%\All Users\Application Data\PVDOXG\NHN.02 (56 bytes)
Registry activity
The process %original file name%.exe:928 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "DA F0 B4 EF CD E8 C8 07 E7 E5 85 90 41 6A 56 45"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Documents" = "%Documents and Settings%\All Users\Documents"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Desktop" = "%Documents and Settings%\%current user%\Desktop"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Desktop" = "%Documents and Settings%\All Users\Desktop"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%Documents and Settings%\All Users\Application Data\PVDOXG]
"NHN.exe" = "NHN"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Personal" = "%Documents and Settings%\%current user%\My Documents"
The Backdoor modifies IE settings for security zones to map all urls to the Intranet Zone:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName" = "1"
The Backdoor modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:
"UNCAsIntranet" = "1"
The Backdoor modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:
"ProxyBypass" = "1"
The process NHN.exe:1076 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "1E A7 F6 FD F9 A5 49 DD CA 79 ED 50 32 D9 87 73"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Programs" = "%Documents and Settings%\All Users\Start Menu\Programs"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Personal" = "%Documents and Settings%\%current user%\My Documents"
To automatically run itself each time Windows is booted, the Backdoor adds the following link to its file to the system registry autorun key:
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"NHN Start" = "%Documents and Settings%\All Users\Application Data\PVDOXG\NHN.exe"
Dropped PE files
MD5 | File path |
---|---|
8942289fe2d65d66fb8bbbd8f5f1bd5b | c:\Documents and Settings\All Users\Application Data\PVDOXG\NHN.01 |
dad4d733fbc7bb35c39be08f922a95bd | c:\Documents and Settings\All Users\Application Data\PVDOXG\NHN.02 |
3710bdb7e3ba37a6773e2f9920bb0d94 | c:\Documents and Settings\All Users\Application Data\PVDOXG\NHN.exe |
HOSTS file anomalies
No changes have been detected.
Rootkit activity
No anomalies have been detected.
Propagation
Removals
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 | 40468 | 40960 | 4.78678 | 78f9c43f3b88e633742875f0cceded97 |
.rdata | 45056 | 9232 | 9728 | 3.72695 | d2f81dfadfcce0d494b79d2e2d060fe1 |
.data | 57344 | 7968 | 3584 | 1.58728 | 63b9326f18f0a1ff160ad7cf40aa3066 |
.rsrc | 65536 | 1651184 | 1651200 | 5.45459 | b87c7abacc9a924ff81e2cb53ea7a96b |
.reloc | 1720320 | 4754 | 5120 | 2.52776 | 95435be1bfe3bcb26cc9847484661299 |
Dropped from:
Downloaded by:
Similar by SSDeep:
Similar by Lavasoft Polymorphic Checker:
Network Activity
URLs
IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)
Traffic
Map
The Backdoor connects to the servers at the folowing location(s):
Strings from Dumps
NHN.exe_1076:
.text
.text
`.rdata
`.rdata
@.data
@.data
.rsrc
.rsrc
PSSSSSSh
PSSSSSSh
YYht%S
YYht%S
t*hl%S
t*hl%S
t*hd%S
t*hd%S
vSSSh
vSSSh
FTPjK
FTPjK
FtPj;
FtPj;
C.PjRV
C.PjRV
tGHt.Ht&
tGHt.Ht&
.EKSWU
.EKSWU
FTPG
FTPG
FTPj
FTPj
FtPS
FtPS
=KNILw.tT=RCNEw
=KNILw.tT=RCNEw
_0 _8 _4;_,
_0 _8 _4;_,
SHA1 block transform for x86, CRYPTOGAMS by <appro></appro>
SHA1 block transform for x86, CRYPTOGAMS by <appro></appro>
SHA256 block transform for x86, CRYPTOGAMS by <appro></appro>
SHA256 block transform for x86, CRYPTOGAMS by <appro></appro>
DlSHA512 block transform for x86, CRYPTOGAMS by <appro></appro>
DlSHA512 block transform for x86, CRYPTOGAMS by <appro></appro>
Montgomery Multiplication for x86, CRYPTOGAMS by <appro></appro>
Montgomery Multiplication for x86, CRYPTOGAMS by <appro></appro>
6-9'6-9'
6-9'6-9'
$6.:$6.:
$6.:$6.:
*?#1*?#1
*?#1*?#1
>8$4,8$4,
>8$4,8$4,
AES for x86, CRYPTOGAMS by <appro></appro>
AES for x86, CRYPTOGAMS by <appro></appro>
Camellia for x86 by <appro></appro>
Camellia for x86 by <appro></appro>
RC4 for x86, CRYPTOGAMS by <appro></appro>
RC4 for x86, CRYPTOGAMS by <appro></appro>
FRegDeleteKeyExW
FRegDeleteKeyExW
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