ramnit | e540b7e60ba97b8ce3d78f452412d61af86c6901b36e53a029efc97aabcd22a0

Analysis

max time kernel
148s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
25/03/2024, 11:29

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General

Target
dde6ad86364766590a2459b045e9b6db.exe
Size 136KB
Sample240325-nlyc5sec68
SHA256 e540b7e60ba97b8ce3d78f452412d61af86c6901b36e53a029efc97aabcd22a0
MD5 dde6ad86364766590a2459b045e9b6db
SHA1 28fcd8dcdedca51beff2a125bc474bdaa2e3473f
SHA512 f94b43adac30c2f902243c823290ad092c7a8aaf4798d42a41588e80b5dd2c09dcc78bc067e680f2815def92c934dd4d0a4df51978e63bb81573ef48982728fc
SSDEEP 768:706R0UEgnKqGR7//GPc0LOBhvBrHks3IiyhDYQbGmxlNaM+WGa1wuxnzgOYw9ICY:JR0In3Pc0LCH9MtbvabUDzJYWu3Bb
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
3248	WaterMark.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3428-2-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3428-4-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3428-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3428-11-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3428-10-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3428-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3428-14-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3248-20-0x0000000000400000-0x0000000000496000-memory.dmp	upx
behavioral2/memory/3248-27-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3248-26-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3248-35-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3248-36-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px5A64.tmp	dde6ad86364766590a2459b045e9b6db.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	dde6ad86364766590a2459b045e9b6db.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	dde6ad86364766590a2459b045e9b6db.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1272	5012	WerFault.exe	90

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3545894531"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3545894531"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{FEF547D9-EA9A-11EE-96FD-EA08C850D01B} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3551832697"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "418131166"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31096487"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31096487"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31096487"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\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

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
3248	WaterMark.exe
3248	WaterMark.exe
3248	WaterMark.exe
3248	WaterMark.exe
3248	WaterMark.exe
3248	WaterMark.exe
3248	WaterMark.exe
3248	WaterMark.exe
3248	WaterMark.exe
3248	WaterMark.exe
3248	WaterMark.exe
3248	WaterMark.exe
3248	WaterMark.exe
3248	WaterMark.exe
3248	WaterMark.exe
3248	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3248	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2072	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2072	iexplore.exe
2072	iexplore.exe
3372	IEXPLORE.EXE
3372	IEXPLORE.EXE
3372	IEXPLORE.EXE
3372	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
3428	dde6ad86364766590a2459b045e9b6db.exe
3248	WaterMark.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3428 wrote to memory of 3248	3428	dde6ad86364766590a2459b045e9b6db.exe	89
PID 3428 wrote to memory of 3248	3428	dde6ad86364766590a2459b045e9b6db.exe	89
PID 3428 wrote to memory of 3248	3428	dde6ad86364766590a2459b045e9b6db.exe	89
PID 3248 wrote to memory of 5012	3248	WaterMark.exe	90
PID 3248 wrote to memory of 5012	3248	WaterMark.exe	90
PID 3248 wrote to memory of 5012	3248	WaterMark.exe	90
PID 3248 wrote to memory of 5012	3248	WaterMark.exe	90
PID 3248 wrote to memory of 5012	3248	WaterMark.exe	90
PID 3248 wrote to memory of 5012	3248	WaterMark.exe	90
PID 3248 wrote to memory of 5012	3248	WaterMark.exe	90
PID 3248 wrote to memory of 5012	3248	WaterMark.exe	90
PID 3248 wrote to memory of 5012	3248	WaterMark.exe	90
PID 3248 wrote to memory of 2072	3248	WaterMark.exe	98
PID 3248 wrote to memory of 2072	3248	WaterMark.exe	98
PID 3248 wrote to memory of 2132	3248	WaterMark.exe	99
PID 3248 wrote to memory of 2132	3248	WaterMark.exe	99
PID 2072 wrote to memory of 3372	2072	iexplore.exe	100
PID 2072 wrote to memory of 3372	2072	iexplore.exe	100
PID 2072 wrote to memory of 3372	2072	iexplore.exe	100

C:\Users\Admin\AppData\Local\Temp\dde6ad86364766590a2459b045e9b6db.exe
"C:\Users\Admin\AppData\Local\Temp\dde6ad86364766590a2459b045e9b6db.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3428
- 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:3248
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    PID:5012
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5012 -s 208
      4⤵
      Program crash
      PID:1272
- - 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:2072
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2072 CREDAT:17410 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:3372
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    PID:2132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 5012 -ip 5012
1⤵
PID:3688

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 136KB
SHA256 e540b7e60ba97b8ce3d78f452412d61af86c6901b36e53a029efc97aabcd22a0
MD5 dde6ad86364766590a2459b045e9b6db
SHA1 28fcd8dcdedca51beff2a125bc474bdaa2e3473f
SHA512 f94b43adac30c2f902243c823290ad092c7a8aaf4798d42a41588e80b5dd2c09dcc78bc067e680f2815def92c934dd4d0a4df51978e63bb81573ef48982728fc
SSDEEP 768:706R0UEgnKqGR7//GPc0LOBhvBrHks3IiyhDYQbGmxlNaM+WGa1wuxnzgOYw9ICY:JR0In3Pc0LCH9MtbvabUDzJYWu3Bb
MD5 SHA1 SHA512 SSDEEP

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suggestions[1].en-US

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\TMWGKKVJ\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/3248-29-0x00000000778D2000-0x00000000778D3000-memory.dmp

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memory/3248-33-0x00000000778D2000-0x00000000778D3000-memory.dmp

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memory/3248-36-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/3248-35-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/3248-34-0x0000000000070000-0x0000000000071000-memory.dmp

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memory/3248-28-0x0000000000060000-0x0000000000061000-memory.dmp

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memory/3248-26-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/3248-27-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/3248-20-0x0000000000400000-0x0000000000496000-memory.dmp

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memory/3428-2-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/3428-14-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/3428-8-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/3428-10-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/3428-0-0x0000000000400000-0x0000000000496000-memory.dmp

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memory/3428-4-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/3428-11-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/3428-5-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/3428-6-0x0000000000920000-0x0000000000921000-memory.dmp

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memory/3428-1-0x0000000000400000-0x0000000000496000-memory.dmp

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memory/5012-31-0x0000000000EA0000-0x0000000000EA1000-memory.dmp

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memory/5012-32-0x0000000000E80000-0x0000000000E81000-memory.dmp

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