ramnit | c6bfb4f3ea041117a4169fc687f5d9f3eb805160b0a1fb2411924f6fbea09918

General

Target

JaffaCakes118_4597f28a25d37f74dfeafa2fe37e2eba.exe
Size

117KB
MD5

4597f28a25d37f74dfeafa2fe37e2eba
SHA1

165cb03cdcf59560000b0380eb77a3e47dadec75
SHA256

c6bfb4f3ea041117a4169fc687f5d9f3eb805160b0a1fb2411924f6fbea09918
SHA512

d60a192593ee2d894fff69c19119532dcc0c377fc896dee974943f20d1e8baad7e5d7c7eabeb012fdc9f1d6fcbf623bee4b8529c1b1b82f5d32849c626906a05
SSDEEP

1536:YT2xEbTOfbXx5EujP3kjG2F3EyCRP69EK0L3FpgV+FWpnOTihx9LBT:YT2xNfzEmPUac0yCRS9EK0TLmL5O

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
1112	WaterMark.exe

UPX packed file 15 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1556-2-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1556-4-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1556-3-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1556-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1556-10-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1556-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1556-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1556-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1112-25-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1112-24-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1112-26-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1112-34-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1112-33-0x0000000000400000-0x0000000000429000-memory.dmp	upx
behavioral2/memory/1112-36-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1112-37-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxB120.tmp	JaffaCakes118_4597f28a25d37f74dfeafa2fe37e2eba.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_4597f28a25d37f74dfeafa2fe37e2eba.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_4597f28a25d37f74dfeafa2fe37e2eba.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1868	1128	WerFault.exe	84

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_4597f28a25d37f74dfeafa2fe37e2eba.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 (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "124581370"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31158646"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "444827911"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{32D3BA89-DD69-11EF-BDBF-7E3D785E6C2E} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "123019097"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31158646"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
1112	WaterMark.exe
1112	WaterMark.exe
1112	WaterMark.exe
1112	WaterMark.exe
1112	WaterMark.exe
1112	WaterMark.exe
1112	WaterMark.exe
1112	WaterMark.exe
1112	WaterMark.exe
1112	WaterMark.exe
1112	WaterMark.exe
1112	WaterMark.exe
1112	WaterMark.exe
1112	WaterMark.exe
1112	WaterMark.exe
1112	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1112	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4492	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4492	iexplore.exe
4492	iexplore.exe
1784	IEXPLORE.EXE
1784	IEXPLORE.EXE
1784	IEXPLORE.EXE
1784	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1556	JaffaCakes118_4597f28a25d37f74dfeafa2fe37e2eba.exe
1112	WaterMark.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1556 wrote to memory of 1112	1556	JaffaCakes118_4597f28a25d37f74dfeafa2fe37e2eba.exe	83
PID 1556 wrote to memory of 1112	1556	JaffaCakes118_4597f28a25d37f74dfeafa2fe37e2eba.exe	83
PID 1556 wrote to memory of 1112	1556	JaffaCakes118_4597f28a25d37f74dfeafa2fe37e2eba.exe	83
PID 1112 wrote to memory of 1128	1112	WaterMark.exe	84
PID 1112 wrote to memory of 1128	1112	WaterMark.exe	84
PID 1112 wrote to memory of 1128	1112	WaterMark.exe	84
PID 1112 wrote to memory of 1128	1112	WaterMark.exe	84
PID 1112 wrote to memory of 1128	1112	WaterMark.exe	84
PID 1112 wrote to memory of 1128	1112	WaterMark.exe	84
PID 1112 wrote to memory of 1128	1112	WaterMark.exe	84
PID 1112 wrote to memory of 1128	1112	WaterMark.exe	84
PID 1112 wrote to memory of 1128	1112	WaterMark.exe	84
PID 1112 wrote to memory of 4492	1112	WaterMark.exe	88
PID 1112 wrote to memory of 4492	1112	WaterMark.exe	88
PID 1112 wrote to memory of 4044	1112	WaterMark.exe	89
PID 1112 wrote to memory of 4044	1112	WaterMark.exe	89
PID 4492 wrote to memory of 1784	4492	iexplore.exe	91
PID 4492 wrote to memory of 1784	4492	iexplore.exe	91
PID 4492 wrote to memory of 1784	4492	iexplore.exe	91

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4597f28a25d37f74dfeafa2fe37e2eba.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4597f28a25d37f74dfeafa2fe37e2eba.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1556
- 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:1112
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    PID:1128
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1128 -s 204
      4⤵
      Program crash
      PID:1868
- - 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:4492
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4492 CREDAT:17410 /prefetch:2
      4⤵
      System Location Discovery: System Language Discovery
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:1784
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    PID:4044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1128 -ip 1128
1⤵
PID:768

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
117KB

MD5
4597f28a25d37f74dfeafa2fe37e2eba

SHA1
165cb03cdcf59560000b0380eb77a3e47dadec75

SHA256
c6bfb4f3ea041117a4169fc687f5d9f3eb805160b0a1fb2411924f6fbea09918

SHA512
d60a192593ee2d894fff69c19119532dcc0c377fc896dee974943f20d1e8baad7e5d7c7eabeb012fdc9f1d6fcbf623bee4b8529c1b1b82f5d32849c626906a05

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

Filesize
471B

MD5
475c66b9af3c16540234fd08c8b64ee1

SHA1
fbf3a350a46429077838d755006c4c2f8e0aab7d

SHA256
3f31d71c018f407fc7b46a5ccd3ab6a8473359fec94505232a3d2a8c86f30e7f

SHA512
fef96a645b5c74823d8ccc53069847b71437cd083851bcb11791cb7ebe4975806253abc6068d12dd5238920682304862c01ae1f4a0e0a1c2b0bd9af2e515a846

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

Filesize
404B

MD5
a0c3ff13c801069dbb90e12285336da7

SHA1
3512be32596edf952c4070fd9d3b452509f73f73

SHA256
05fa0154095d92dc9d2de15562d4bc66fbe43ffdcded11c7c95550936c6f1890

SHA512
b2cf8406171fbfd0b3eedd104a019cb609950aa6b348253138a9ddd5d5f00dc054787a001955b298c9faa4efc7eef6de075f6e8e32f50844e02c56e1c6d605fe

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\6IJLDY7V\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
memory/1112-34-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1112-33-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1112-37-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1112-36-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1112-35-0x00000000772E2000-0x00000000772E3000-memory.dmp

Filesize
4KB

Download
memory/1112-32-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/1112-27-0x0000000000060000-0x0000000000061000-memory.dmp

Filesize
4KB

Download
memory/1112-28-0x00000000772E2000-0x00000000772E3000-memory.dmp

Filesize
4KB

Download
memory/1112-26-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1112-25-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1112-24-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1128-31-0x0000000001290000-0x0000000001291000-memory.dmp

Filesize
4KB

Download
memory/1128-30-0x00000000012B0000-0x00000000012B1000-memory.dmp

Filesize
4KB

Download
memory/1556-0-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1556-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1556-16-0x0000000000401000-0x0000000000405000-memory.dmp

Filesize
16KB

Download
memory/1556-7-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1556-3-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1556-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1556-6-0x00000000024A0000-0x00000000024A1000-memory.dmp

Filesize
4KB

Download
memory/1556-10-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1556-9-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1556-4-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1556-2-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1556-1-0x0000000000401000-0x0000000000405000-memory.dmp

Filesize
16KB

Download

Analysis

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