ramnit | 2340820dedc8808984e60dd7107a424786e3b63ce6f19cf99cf9c078ef436d6e

General

Target

JaffaCakes118_e1a9d56c6ed776f038c6be67af8f44d0.exe
Size

92KB
MD5

e1a9d56c6ed776f038c6be67af8f44d0
SHA1

1d9ee6cf8e854d41e1c9480a96caddbf74a72faa
SHA256

2340820dedc8808984e60dd7107a424786e3b63ce6f19cf99cf9c078ef436d6e
SHA512

581cba6f01ff1cff6a23bbb1c67ad367f57cfd709f20de770e8aa887ce3a7d8f3d398fbbe13b933d996135be064466a9418eb8f9aeccfb4140f73243801971d5
SSDEEP

1536:iVZnxm6MG9xgfrvEaoiT/GyphjXDYjKwttoswRmhApE:ynxwgxgfR/DVG7wBpE

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 1 IoCs

pid	Process
2344	WaterMark.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4520-3-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4520-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4520-10-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2344-20-0x0000000000400000-0x000000000045F000-memory.dmp	upx
behavioral2/memory/2344-26-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2344-23-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4520-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4520-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4520-2-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4520-1-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2344-33-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2344-32-0x0000000000400000-0x000000000045F000-memory.dmp	upx
behavioral2/memory/2344-34-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_e1a9d56c6ed776f038c6be67af8f44d0.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px9848.tmp	JaffaCakes118_e1a9d56c6ed776f038c6be67af8f44d0.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_e1a9d56c6ed776f038c6be67af8f44d0.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2372	3936	WerFault.exe	83

System Location Discovery: System Language Discovery 1 TTPs 3 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e1a9d56c6ed776f038c6be67af8f44d0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WaterMark.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 27 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{77F64F10-D708-11EF-ADF2-CE95CE932DF6} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1283225411"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1282756527"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157013"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157013"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "444126659"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
2344	WaterMark.exe
2344	WaterMark.exe
2344	WaterMark.exe
2344	WaterMark.exe
2344	WaterMark.exe
2344	WaterMark.exe
2344	WaterMark.exe
2344	WaterMark.exe
2344	WaterMark.exe
2344	WaterMark.exe
2344	WaterMark.exe
2344	WaterMark.exe
2344	WaterMark.exe
2344	WaterMark.exe
2344	WaterMark.exe
2344	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2344	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2864	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2864	iexplore.exe
2864	iexplore.exe
1952	IEXPLORE.EXE
1952	IEXPLORE.EXE
1952	IEXPLORE.EXE
1952	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
4520	JaffaCakes118_e1a9d56c6ed776f038c6be67af8f44d0.exe
2344	WaterMark.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4520 wrote to memory of 2344	4520	JaffaCakes118_e1a9d56c6ed776f038c6be67af8f44d0.exe	82
PID 4520 wrote to memory of 2344	4520	JaffaCakes118_e1a9d56c6ed776f038c6be67af8f44d0.exe	82
PID 4520 wrote to memory of 2344	4520	JaffaCakes118_e1a9d56c6ed776f038c6be67af8f44d0.exe	82
PID 2344 wrote to memory of 3936	2344	WaterMark.exe	83
PID 2344 wrote to memory of 3936	2344	WaterMark.exe	83
PID 2344 wrote to memory of 3936	2344	WaterMark.exe	83
PID 2344 wrote to memory of 3936	2344	WaterMark.exe	83
PID 2344 wrote to memory of 3936	2344	WaterMark.exe	83
PID 2344 wrote to memory of 3936	2344	WaterMark.exe	83
PID 2344 wrote to memory of 3936	2344	WaterMark.exe	83
PID 2344 wrote to memory of 3936	2344	WaterMark.exe	83
PID 2344 wrote to memory of 3936	2344	WaterMark.exe	83
PID 2344 wrote to memory of 2864	2344	WaterMark.exe	87
PID 2344 wrote to memory of 2864	2344	WaterMark.exe	87
PID 2344 wrote to memory of 1788	2344	WaterMark.exe	88
PID 2344 wrote to memory of 1788	2344	WaterMark.exe	88
PID 2864 wrote to memory of 1952	2864	iexplore.exe	89
PID 2864 wrote to memory of 1952	2864	iexplore.exe	89
PID 2864 wrote to memory of 1952	2864	iexplore.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e1a9d56c6ed776f038c6be67af8f44d0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e1a9d56c6ed776f038c6be67af8f44d0.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:4520
- C:\Program Files (x86)\Microsoft\WaterMark.exe
  "C:\Program Files (x86)\Microsoft\WaterMark.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:2344
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    PID:3936
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3936 -s 204
      4⤵
      Program crash
      PID:2372
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2864
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2864 CREDAT:17410 /prefetch:2
      4⤵
      System Location Discovery: System Language Discovery
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:1952
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    PID:1788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3936 -ip 3936
1⤵
PID:3180

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

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Downloads

C:\Program Files (x86)\Microsoft\WaterMark.exe

Filesize
92KB

MD5
e1a9d56c6ed776f038c6be67af8f44d0

SHA1
1d9ee6cf8e854d41e1c9480a96caddbf74a72faa

SHA256
2340820dedc8808984e60dd7107a424786e3b63ce6f19cf99cf9c078ef436d6e

SHA512
581cba6f01ff1cff6a23bbb1c67ad367f57cfd709f20de770e8aa887ce3a7d8f3d398fbbe13b933d996135be064466a9418eb8f9aeccfb4140f73243801971d5

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

Filesize
471B

MD5
5c880ecece7595aea41224edbf5f8bba

SHA1
883636d01cf260db4e245913bf0bf90ead6bbacf

SHA256
31736fecaf227fc906a4146252d5b452d9118e68c3a12c72095969f42724c621

SHA512
d5f565aa1cafa0fa8217c59355e7289138b862a99df2bbea6059b4f4ec1af0bd337e53d8349b9595606dfddbfe82d743ee748cff9b7c65b741d09e3cf9abb1cc

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

Filesize
404B

MD5
8b47fe6b7bab1c5d814880116a94e2fb

SHA1
d1ca6d00afc60fb484531811254c23435471716b

SHA256
df16d226320d9e468489531dfb6006d8b48f79660b7bed97e0de559100cee891

SHA512
3bb8ef05b64b8ec9303a76f1d5d566ede4d0f28476ec1b801d55d47c822ee904ef73939b53615b10c310b24335e9857cc53d24c18fe517bd89acdfd3cec2aa01

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\PGH3GSHW\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
memory/2344-23-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2344-30-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/2344-20-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/2344-24-0x0000000000060000-0x0000000000061000-memory.dmp

Filesize
4KB

Download
memory/2344-34-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2344-32-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/2344-26-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2344-25-0x0000000077C52000-0x0000000077C53000-memory.dmp

Filesize
4KB

Download
memory/2344-33-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2344-31-0x0000000077C52000-0x0000000077C53000-memory.dmp

Filesize
4KB

Download
memory/3936-28-0x0000000000F90000-0x0000000000F91000-memory.dmp

Filesize
4KB

Download
memory/3936-29-0x0000000000F70000-0x0000000000F71000-memory.dmp

Filesize
4KB

Download
memory/4520-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4520-2-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4520-1-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4520-7-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4520-0-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/4520-10-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4520-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4520-6-0x00000000030C0000-0x00000000030C1000-memory.dmp

Filesize
4KB

Download
memory/4520-3-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

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