ramnit | 915515c8b3846d7f9251b1f9fa7f223ebf20b7a80c48038efc7c901c7be33a89

General

Target

915515c8b3846d7f9251b1f9fa7f223ebf20b7a80c48038efc7c901c7be33a89.dll
Size

1.6MB
MD5

ff4ce0f335c3c992288cf3089395efa8
SHA1

aa134e45e41b516bc56e646ed468b34e526cf6d9
SHA256

915515c8b3846d7f9251b1f9fa7f223ebf20b7a80c48038efc7c901c7be33a89
SHA512

92543ec4586dd30144b18174e24bb1ec1c9f990cf65d6471ccefac4c504c2fb0bc309e3e12c4979d869ec5a422b2df738521383ac6389de36d0fa4e0dfad1fc9
SSDEEP

24576:J+k86F1f/Js7iCBfWx9mBVo/nWV3iV12PGc99RXXbnrz0BGT7nqRSA82Dej8/+uj:JBhmdwaTuWV31G29RHbX0BGTzESe2q

Score

10^/10

ramnit banker discovery spyware stealer trojan upx worm

Malware Config

Signatures

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit
Ramnit family
ramnit
Executes dropped EXE 2 IoCs

Processes:

rundll32Srv.exeDesktopLayer.exe

pid process

4848 rundll32Srv.exe
1704 DesktopLayer.exe
Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File created C:\Windows\SysWOW64\rundll32Srv.exe rundll32.exe

pid	process
4848	rundll32Srv.exe
1704	DesktopLayer.exe

description	ioc	process
File created	C:\Windows\SysWOW64\rundll32Srv.exe	rundll32.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\Windows\SysWOW64\rundll32Srv.exe	upx
behavioral2/memory/4848-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4848-7-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1704-14-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1704-16-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

Processes:

rundll32Srv.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Microsoft\pxADE3.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

852 1884 WerFault.exe rundll32.exe

pid	pid_target	process	target process
852	1884	WerFault.exe	rundll32.exe

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

rundll32.exerundll32Srv.exeDesktopLayer.exeIEXPLORE.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32Srv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DesktopLayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	process
Set value (data)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3703638957"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31144630"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{07E04B39-A6AA-11EF-AEE2-EE8B2F3CE00B} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3695826542"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3695826542"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31144630"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31144630"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "438808443"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

DesktopLayer.exe

pid	process
1704	DesktopLayer.exe
1704	DesktopLayer.exe
1704	DesktopLayer.exe
1704	DesktopLayer.exe
1704	DesktopLayer.exe
1704	DesktopLayer.exe
1704	DesktopLayer.exe
1704	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

4036 iexplore.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

4036 iexplore.exe
4036 iexplore.exe
1464 IEXPLORE.EXE
1464 IEXPLORE.EXE
1464 IEXPLORE.EXE
1464 IEXPLORE.EXE

pid	process
4036	iexplore.exe

pid	process
4036	iexplore.exe
4036	iexplore.exe
1464	IEXPLORE.EXE
1464	IEXPLORE.EXE
1464	IEXPLORE.EXE
1464	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

rundll32.exerundll32.exerundll32Srv.exeDesktopLayer.exeiexplore.exe

description	pid	process	target process
PID 1744 wrote to memory of 1884	1744	rundll32.exe	rundll32.exe
PID 1744 wrote to memory of 1884	1744	rundll32.exe	rundll32.exe
PID 1744 wrote to memory of 1884	1744	rundll32.exe	rundll32.exe
PID 1884 wrote to memory of 4848	1884	rundll32.exe	rundll32Srv.exe
PID 1884 wrote to memory of 4848	1884	rundll32.exe	rundll32Srv.exe
PID 1884 wrote to memory of 4848	1884	rundll32.exe	rundll32Srv.exe
PID 4848 wrote to memory of 1704	4848	rundll32Srv.exe	DesktopLayer.exe
PID 4848 wrote to memory of 1704	4848	rundll32Srv.exe	DesktopLayer.exe
PID 4848 wrote to memory of 1704	4848	rundll32Srv.exe	DesktopLayer.exe
PID 1704 wrote to memory of 4036	1704	DesktopLayer.exe	iexplore.exe
PID 1704 wrote to memory of 4036	1704	DesktopLayer.exe	iexplore.exe
PID 4036 wrote to memory of 1464	4036	iexplore.exe	IEXPLORE.EXE
PID 4036 wrote to memory of 1464	4036	iexplore.exe	IEXPLORE.EXE
PID 4036 wrote to memory of 1464	4036	iexplore.exe	IEXPLORE.EXE

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\915515c8b3846d7f9251b1f9fa7f223ebf20b7a80c48038efc7c901c7be33a89.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1744
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\915515c8b3846d7f9251b1f9fa7f223ebf20b7a80c48038efc7c901c7be33a89.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1884
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4848
  - - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
      "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:1704
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:4036
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4036 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1464
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1884 -s 672
    3⤵
    - Program crash
    PID:852

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1884 -ip 1884
1⤵
PID:2952

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
11d14077869dba67110eb7f6cae1b120

SHA1
f05e6bb7204a6e0efff37eedf3447eedc5de7b84

SHA256
d59818a872b22bd33909691c19daaf807ac7042fc6897dea5ba296d02530f39e

SHA512
9b62bb5f3e777e67ce440ca88f81e5e215443ad2c679b076d10a0534e816853340589d8d8e5e36fc53d60efe4dd5c0537e0fdf011064d1f8ff2c2dbffc2c992d

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
013384f561131586c70ece7e9fe67a15

SHA1
8ea848ed07b2f91369fbc1d59948e93a85e35b5a

SHA256
24dfdb4504aea2463392a4979e79a2899db1856e7fa66e9a569574b031390683

SHA512
3221b716746eacd69dbc22370523bf305ad162dd8cad0bb857abee98cf32808281ff4ecdd6fc5cb58162333bd60be56596c30525bd4f619fc8b7762689ebc6e7

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\M6JHG9EK\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Windows\SysWOW64\rundll32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/1704-13-0x0000000001F10000-0x0000000001F11000-memory.dmp

Filesize
4KB

Download
memory/1704-14-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1704-16-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1884-0-0x0000000075130000-0x00000000752CE000-memory.dmp

Filesize
1.6MB

Download
memory/1884-17-0x0000000075130000-0x00000000752CE000-memory.dmp

Filesize
1.6MB

Download
memory/4848-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4848-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4848-6-0x00000000005C0000-0x00000000005CF000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads