ramnit | 13a4ed853128ae1db4580c73eed8c6a1a181219b919b11d230fabd82c19425ca

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
13/03/2024, 18:26

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General

Target
c6925e3f5e044db46a29b2648e49199c.exe
Size 69KB
Sample240313-w3dn3acc4t
SHA256 13a4ed853128ae1db4580c73eed8c6a1a181219b919b11d230fabd82c19425ca
MD5 c6925e3f5e044db46a29b2648e49199c
SHA1 5adda1e9a96ee238b51a8acdfa315173dc8f6df2
SHA512 fd1707fe04ced584eede216f103a12d8c669f014ee409ffcac5df762bff8de02cc1bf93868fc492a46d5af7f9ceccabc26ed1028d241512fb6af7e526a4ece03
SSDEEP 1536:SVZnxm6MG9xgfrvEaoiT/GyphjXDYjKwttoswRmhApE:CnxwgxgfR/DVG7wBpE
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

ramnit banker 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

Executes dropped EXE 1 IoCs

pid	Process
3664	WaterMark.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2896-1-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2896-4-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2896-3-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2896-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2896-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2896-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2896-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3664-21-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3664-22-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3664-24-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3664-31-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3664-32-0x0000000000400000-0x0000000000421000-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	c6925e3f5e044db46a29b2648e49199c.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px3C7C.tmp	c6925e3f5e044db46a29b2648e49199c.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	c6925e3f5e044db46a29b2648e49199c.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4136	3776	WerFault.exe	88

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31094132"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "417119369"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31094132"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31094132"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\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-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "214283174"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{385765B3-E167-11EE-B3C6-D65EEEF40ABB} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "214283174"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "219595764"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
3664	WaterMark.exe
3664	WaterMark.exe
3664	WaterMark.exe
3664	WaterMark.exe
3664	WaterMark.exe
3664	WaterMark.exe
3664	WaterMark.exe
3664	WaterMark.exe
3664	WaterMark.exe
3664	WaterMark.exe
3664	WaterMark.exe
3664	WaterMark.exe
3664	WaterMark.exe
3664	WaterMark.exe
3664	WaterMark.exe
3664	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3664	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4560	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4560	iexplore.exe
4560	iexplore.exe
3472	IEXPLORE.EXE
3472	IEXPLORE.EXE
3472	IEXPLORE.EXE
3472	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2896	c6925e3f5e044db46a29b2648e49199c.exe
3664	WaterMark.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2896 wrote to memory of 3664	2896	c6925e3f5e044db46a29b2648e49199c.exe	87
PID 2896 wrote to memory of 3664	2896	c6925e3f5e044db46a29b2648e49199c.exe	87
PID 2896 wrote to memory of 3664	2896	c6925e3f5e044db46a29b2648e49199c.exe	87
PID 3664 wrote to memory of 3776	3664	WaterMark.exe	88
PID 3664 wrote to memory of 3776	3664	WaterMark.exe	88
PID 3664 wrote to memory of 3776	3664	WaterMark.exe	88
PID 3664 wrote to memory of 3776	3664	WaterMark.exe	88
PID 3664 wrote to memory of 3776	3664	WaterMark.exe	88
PID 3664 wrote to memory of 3776	3664	WaterMark.exe	88
PID 3664 wrote to memory of 3776	3664	WaterMark.exe	88
PID 3664 wrote to memory of 3776	3664	WaterMark.exe	88
PID 3664 wrote to memory of 3776	3664	WaterMark.exe	88
PID 3664 wrote to memory of 4560	3664	WaterMark.exe	97
PID 3664 wrote to memory of 4560	3664	WaterMark.exe	97
PID 3664 wrote to memory of 396	3664	WaterMark.exe	98
PID 3664 wrote to memory of 396	3664	WaterMark.exe	98
PID 4560 wrote to memory of 3472	4560	iexplore.exe	99
PID 4560 wrote to memory of 3472	4560	iexplore.exe	99
PID 4560 wrote to memory of 3472	4560	iexplore.exe	99

C:\Users\Admin\AppData\Local\Temp\c6925e3f5e044db46a29b2648e49199c.exe
"C:\Users\Admin\AppData\Local\Temp\c6925e3f5e044db46a29b2648e49199c.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2896
- C:\Program Files (x86)\Microsoft\WaterMark.exe
  "C:\Program Files (x86)\Microsoft\WaterMark.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:3664
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    PID:3776
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3776 -s 204
      4⤵
      Program crash
      PID:4136
- - 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:4560
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4560 CREDAT:17410 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:3472
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    PID:396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3776 -ip 3776
1⤵
PID:4288

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

WaterMark.exe

Path C:\Program Files (x86)\Microsoft\WaterMark.exe
Size 69KB
SHA256 13a4ed853128ae1db4580c73eed8c6a1a181219b919b11d230fabd82c19425ca
MD5 c6925e3f5e044db46a29b2648e49199c
SHA1 5adda1e9a96ee238b51a8acdfa315173dc8f6df2
SHA512 fd1707fe04ced584eede216f103a12d8c669f014ee409ffcac5df762bff8de02cc1bf93868fc492a46d5af7f9ceccabc26ed1028d241512fb6af7e526a4ece03
SSDEEP 1536:SVZnxm6MG9xgfrvEaoiT/GyphjXDYjKwttoswRmhApE:CnxwgxgfR/DVG7wBpE
MD5 SHA1 SHA512 SSDEEP

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suggestions[1].en-US

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\6Y4OXOYV\suggestions[1].en-US
Size 17KB
SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
MD5 5a34cb996293fde2cb7a4ac89587393a
SHA1 3c96c993500690d1a77873cd62bc639b3a10653f
SHA512 e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
SSDEEP 384:K4gN8sGygaEKfWYSJUKbO7UckxtBjCdY7mO3D0C5l+piEieDSV126ry1/XSGKwG3:K4gNFXiKfWfJ1Kockxbd7mAt5Mp5ie2F
MD5 SHA1 SHA512 SSDEEP

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memory/2896-1-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/2896-4-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/2896-3-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/2896-2-0x00000000001B0000-0x00000000001B1000-memory.dmp

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memory/2896-5-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/2896-6-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/2896-7-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/2896-9-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/3664-23-0x0000000000910000-0x0000000000911000-memory.dmp

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memory/3664-22-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/3664-24-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/3664-26-0x0000000077C82000-0x0000000077C83000-memory.dmp

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memory/3664-29-0x0000000000070000-0x0000000000071000-memory.dmp

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memory/3664-30-0x0000000077C82000-0x0000000077C83000-memory.dmp

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memory/3664-31-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/3664-32-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/3664-21-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/3776-27-0x0000000001010000-0x0000000001011000-memory.dmp

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memory/3776-28-0x0000000000DF0000-0x0000000000DF1000-memory.dmp

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