Application.Generic.757818_d43f17e2c2

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

The Application creates the following process(es):No processes have been created.The Application injects its code into the following process(es):

%original file name%.exe:1860

Mutexes

The following mutexes were created/opened:

ShimCacheMutexDBWinMutexSendoriUpgrade

File activity

The process %original file name%.exe:1860 makes changes in the file system.

The Application creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\nsn7E.tmp\System.dll (11 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\MZA_up_install.exe (314473 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsn7E.tmp\NSISdl.dll (14 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsn7E.tmp\DynNSIS.dll (15375 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsn7E.tmp\blowfish.dll (22 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\config.ini (223 bytes)

The Application deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\nsn7E.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\config.ini (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsh7D.tmp (0 bytes)

Registry activity

The process %original file name%.exe:1860 makes changes in the system registry.

The Application creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "68 89 3D A4 A9 C2 A9 BF 4C 9C D1 25 65 1C 8F F9"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[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\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

Dropped PE files

MD5	File path
b79751ed29555cfbd5eee5fc3df98424	c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\MZA_up_install.exe
63b394f62341c6910d48096c397d764e	c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\nsn7E.tmp\DynNSIS.dll
a5f8399a743ab7f9c88c645c35b1ebb5	c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\nsn7E.tmp\NSISdl.dll
c17103ae9072a06da581dec998343fc1	c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\nsn7E.tmp\System.dll
5afd4a9b7e69e7c6e312b2ce4040394a	c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\nsn7E.tmp\blowfish.dll

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

Removals

Remove it with Ad-Aware

1. Click (here) to download and install Ad-Aware Free Antivirus.
2. Update the definition files.
3. Run a full scan of your computer.

Manual removal*

1. Terminate malicious process(es) (How to End a Process With the Task Manager):No processes have been created.
2. Delete the original Application file.
   
3. Delete or disinfect the following files created/modified by the Application:

   %Documents and Settings%\%current user%\Local Settings\Temp\nsn7E.tmp\System.dll (11 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\MZA_up_install.exe (314473 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsn7E.tmp\NSISdl.dll (14 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsn7E.tmp\DynNSIS.dll (15375 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsn7E.tmp\blowfish.dll (22 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\config.ini (223 bytes)

4. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
   
5. Reboot the computer.
   

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.

Static Analysis

VersionInfo

Company Name: Mezaa
Product Name: Mezaa
Product Version:
Legal Copyright: (c) Mezaa All rights reserved.
Legal Trademarks:
Original Filename:
Internal Name: MZAAppSetup-3.0.0.exe
File Version: 3.0.0.0
File Description: Mezaa
Comments:
Language: English (United States)

Company Name: MezaaProduct Name: MezaaProduct Version: Legal Copyright: (c) Mezaa All rights reserved.Legal Trademarks: Original Filename: Internal Name: MZAAppSetup-3.0.0.exeFile Version: 3.0.0.0File Description: MezaaComments: Language: English (United States)

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	4096	25494	25600	4.48386	e4d11edc23cf28513734eebc85f730f9
.rdata	32768	4844	5120	3.5686	657547f7311a36183b6aafa928e49623
.data	40960	159960	3072	3.58766	2ecafdb1d49b8fa49b32f466a693a69a
.ndata	204800	53248	0	0	d41d8cd98f00b204e9800998ecf8427e
.rsrc	258048	17480	17920	4.05685	305458d411dd885a784e705922e6e2aa

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

URL	IP
hxxp://d24n8jcd5iaqcl.cloudfront.net/upgrade/3_0_1/config.ini
hxxp://d24n8jcd5iaqcl.cloudfront.net/upgrade/3_0_1/MZAAppSetup-3.0.1.exe
hxxp://cdn.mezaa.com/upgrade/3_0_1/MZAAppSetup-3.0.1.exe	54.230.38.229
hxxp://cdn.mezaa.com/upgrade/3_0_1/config.ini	54.230.38.229

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

GET /upgrade/3_0_1/config.ini HTTP/1.0

Host: cdn.mezaa.com

User-Agent: NSISDL/1.2 (Mozilla)

Accept: */*

HTTP/1.1 200 OK

Content-Type: application/octet-stream

Content-Length: 223

Connection: close

Date: Tue, 04 Nov 2014 15:33:29 GMT

Last-Modified: Thu, 24 Jul 2014 00:40:27 GMT

ETag: "48f1485b2cbafc48bfb2c43c413ae8bb"

Accept-Ranges: bytes

Server: AmazonS3

Age: 6898

X-Cache: Hit from cloudfront

Via: 1.1 f546d9284285510be4df384663e7934f.cloudfront.net (CloudFront)

X-Amz-Cf-Id: _fgwbqJw-QSJ6NkReZF8SF46DnJcLIMi4UfV46byi4Sr6NTuAbwOag==

[hgfdrt]..hhgh="322vff8bSKPeytElvGEw2wmEmJtD31XH"..jhgf=Z3qnRGOGA7Amna/4xIvPiv7ABO6pKYj7..ijhg=Ilj5TzlblF8 LdCbM5fb6Ks8WXXoo97ID2aQ2yaPpwrXX5eBO0P4Pw==..fdes=WP4yv39WBhM=..mngt=XdQQwOGxHo1ZLV7/TVUAPg==..NoLoadPartners=0..

GET /upgrade/3_0_1/MZAAppSetup-3.0.1.exe HTTP/1.0

Host: cdn.mezaa.com

User-Agent: NSISDL/1.2 (Mozilla)

Accept: */*

HTTP/1.1 200 OK

Content-Type: application/octet-stream

Content-Length: 3792872

Connection: close

Date: Wed, 05 Nov 2014 22:18:11 GMT

Last-Modified: Wed, 23 Jul 2014 23:52:31 GMT

ETag: "b79751ed29555cfbd5eee5fc3df98424"

Accept-Ranges: bytes

Server: AmazonS3

Age: 6898

X-Cache: Hit from cloudfront

Via: 1.1 38725119ff70beb3d62fd652f133ae0b.cloudfront.net (CloudFront)

X-Amz-Cf-Id: XfyTlsIFHUuHf75pH_jrOVguS7alnRPgDpbmUc14uCzwdqQH3IiUtw==

MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......1p.:u..iu..iu..i...iw..iu..i...i...id..i!2.i...i...it..iRichu..i........PE..L...d..K.................d..........^5............@..........................@.......?:..................................................}............9..............................................................................................text....c.......d.................. ..`.rdata...............h..............@..@.data....p...........|..............@....ndata....... ...........................rsrc....}.......~..................@..@........................................................................................................................................................................................................................................................................................................................................................................................U....\.}..t .}.F.E.u..H......C..H.P.u..u..u...T.@..B...SV.5..C..E.WP.u...X.@..e...E..E.P.u...\.@..}..e....D.@........FR..VV..U... M.......M....3.....FQ.....NU..M..........VT..U.....FP..E...............E.P.M...H.@..E...E.P.E.P.u...`.@..u....E..9}...w....~X.te.v4..L.@....E.tU.}.j.W.E......E.......P.@..vXW..T.@..u..5X.@.W...E..E.h ...Pj.h..C.W..d.@..u.W...u....E.P.u...h.@._^3.[.....L$....C...Si.....VW.T.....tO.q.3.;5..C.sB..i......D.......t.G.....t...O..t .....u...3....3...F.....;5..C.r._^[...U..QQ.U.SV..i....

<<< skipped >>>

Map

The Application connects to the servers at the folowing location(s):

Strings from Dumps

%original file name%.exe_1860:

.text

.text

`.rdata

`.rdata

@.data

@.data

.ndata

.ndata

.rsrc

.rsrc

uDSSh

uDSSh

.DEFAULT\Control Panel\International

.DEFAULT\Control Panel\International

Software\Microsoft\Windows\CurrentVersion

Software\Microsoft\Windows\CurrentVersion

GetWindowsDirectoryA

GetWindowsDirectoryA

KERNEL32.dll

KERNEL32.dll

ExitWindowsEx

ExitWindowsEx

GetAsyncKeyState

GetAsyncKeyState

USER32.dll

USER32.dll

GDI32.dll

GDI32.dll

SHFileOperationA

SHFileOperationA

ShellExecuteA

ShellExecuteA

SHELL32.dll

SHELL32.dll

RegEnumKeyA

RegEnumKeyA

RegCreateKeyExA

RegCreateKeyExA

RegCloseKey

RegCloseKey

RegDeleteKeyA

RegDeleteKeyA

RegOpenKeyExA

RegOpenKeyExA

ADVAPI32.dll

ADVAPI32.dll

COMCTL32.dll

COMCTL32.dll

ole32.dll

ole32.dll

VERSION.dll

VERSION.dll

logging set to %d

logging set to %d

settings logging to %d

settings logging to %d

created uninstaller: %d, "%s"

created uninstaller: %d, "%s"

WriteReg: error creating key "%s\%s"

WriteReg: error creating key "%s\%s"

WriteReg: error writing into "%s\%s" "%s"

WriteReg: error writing into "%s\%s" "%s"

WriteRegBin: "%s\%s" "%s"="%s"

WriteRegBin: "%s\%s" "%s"="%s"

WriteRegDWORD: "%s\%s" "%s"="0xx"

WriteRegDWORD: "%s\%s" "%s"="0xx"

WriteRegExpandStr: "%s\%s" "%s"="%s"

WriteRegExpandStr: "%s\%s" "%s"="%s"

WriteRegStr: "%s\%s" "%s"="%s"

WriteRegStr: "%s\%s" "%s"="%s"

DeleteRegKey: "%s\%s"

DeleteRegKey: "%s\%s"

DeleteRegValue: "%s\%s" "%s"

DeleteRegValue: "%s\%s" "%s"

WriteINIStr: wrote [%s] %s=%s in %s

WriteINIStr: wrote [%s] %s=%s in %s

CopyFiles "%s"->"%s"

CopyFiles "%s"->"%s"

CreateShortCut: out: "%s", in: "%s %s", icon: %s,%d, sw=%d, hk=%d

CreateShortCut: out: "%s", in: "%s %s", icon: %s,%d, sw=%d, hk=%d

Error registering DLL: Could not load %s

Error registering DLL: Could not load %s

Error registering DLL: %s not found in %s

Error registering DLL: %s not found in %s

Exec: failed createprocess ("%s")

Exec: failed createprocess ("%s")

Exec: success ("%s")

Exec: success ("%s")

Exec: command="%s"

Exec: command="%s"

ExecShell: success ("%s": file:"%s" params:"%s")

ExecShell: success ("%s": file:"%s" params:"%s")

ExecShell: warning: error ("%s": file:"%s" params:"%s")=%d

ExecShell: warning: error ("%s": file:"%s" params:"%s")=%d

Exch: stack

Exch: stack

RMDir: "%s"

RMDir: "%s"

MessageBox: %d,"%s"

MessageBox: %d,"%s"

Delete: "%s"

Delete: "%s"

File: wrote %d to "%s"

File: wrote %d to "%s"

File: skipped: "%s" (overwriteflag=%d)

File: skipped: "%s" (overwriteflag=%d)

File: error creating "%s"

File: error creating "%s"

File: overwriteflag=%d, allowskipfilesflag=%d, name="%s"

File: overwriteflag=%d, allowskipfilesflag=%d, name="%s"

Rename failed: %s

Rename failed: %s

Rename on reboot: %s

Rename on reboot: %s

Rename: %s

Rename: %s

IfFileExists: file "%s" does not exist, jumping %d

IfFileExists: file "%s" does not exist, jumping %d

IfFileExists: file "%s" exists, jumping %d

IfFileExists: file "%s" exists, jumping %d

CreateDirectory: "%s" created

CreateDirectory: "%s" created

CreateDirectory: can't create "%s" - a file already exists

CreateDirectory: can't create "%s" - a file already exists

CreateDirectory: can't create "%s" (err=%d)

CreateDirectory: can't create "%s" (err=%d)

CreateDirectory: "%s" (%d)

CreateDirectory: "%s" (%d)

SetFileAttributes: "%s":X

SetFileAttributes: "%s":X

Sleep(%d)

Sleep(%d)

detailprint: %s

detailprint: %s

Call: %d

Call: %d

Aborting: "%s"

Aborting: "%s"

Jump: %d

Jump: %d

verifying installer: %d%%

verifying installer: %d%%

hXXp://nsis.sf.net/NSIS_Error

hXXp://nsis.sf.net/NSIS_Error

... %d%%

... %d%%

~nsu.tmp

~nsu.tmp

install.log

install.log

%u.%u%s%s

%u.%u%s%s

Skipping section: "%s"

Skipping section: "%s"

Section: "%s"

Section: "%s"

New install of "%s" to "%s"

New install of "%s" to "%s"

RegDeleteKeyExA

RegDeleteKeyExA

RMDir: RemoveDirectory failed("%s")

RMDir: RemoveDirectory failed("%s")

RMDir: RemoveDirectory on Reboot("%s")

RMDir: RemoveDirectory on Reboot("%s")

RMDir: RemoveDirectory("%s")

RMDir: RemoveDirectory("%s")

RMDir: RemoveDirectory invalid input("%s")

RMDir: RemoveDirectory invalid input("%s")

Delete: DeleteFile failed("%s")

Delete: DeleteFile failed("%s")

Delete: DeleteFile on Reboot("%s")

Delete: DeleteFile on Reboot("%s")

Delete: DeleteFile("%s")

Delete: DeleteFile("%s")

%s=%s

%s=%s

*?|/":

*?|/":

invalid registry key

invalid registry key

HKEY_DYN_DATA

HKEY_DYN_DATA

HKEY_CURRENT_CONFIG

HKEY_CURRENT_CONFIG

HKEY_PERFORMANCE_DATA

HKEY_PERFORMANCE_DATA

HKEY_USERS

HKEY_USERS

HKEY_LOCAL_MACHINE

HKEY_LOCAL_MACHINE

HKEY_CURRENT_USER

HKEY_CURRENT_USER

HKEY_CLASSES_ROOT

HKEY_CLASSES_ROOT