ramnit | 1fa242ce013b13eccbf6adeaeec9c1c42bcc23fd2a96351e43eceb39d1408475

Analysis

max time kernel
140s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
20/04/2024, 04:37

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General

Target
fbf13e38558108839059a6df1a214d03_JaffaCakes118.dll
Size 942KB
Sample240420-e9asbagf68
SHA256 1fa242ce013b13eccbf6adeaeec9c1c42bcc23fd2a96351e43eceb39d1408475
MD5 fbf13e38558108839059a6df1a214d03
SHA1 e070d3aeb6b50ae7dde84ecda504aedb2d284125
SHA512 9b95c6c7165e6c45aa66d31ea1d3dec0ea45e518c72e78dc750a86b157b1bc58c8a9c84516491ea55c6b97d6d292290185ef441c3871d7e00147d94c8a172cbb
SSDEEP 24576:5hTSqs13avB+054QYuNVGvogaiXK0xb7ZivKLVg:5hEIQQYYiXnRivKK
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 4 IoCs

pid	Process
2336	rundll32Srv.exe
4560	rundll32Srv.exe
3964	WaterMark.exe
3160	WaterMark.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4560-9-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral2/memory/4560-15-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral2/memory/4560-13-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral2/memory/4560-14-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral2/memory/4560-19-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral2/memory/3160-33-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral2/memory/3160-39-0x0000000000400000-0x0000000000418000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

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

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2336 set thread context of 4560	2336	rundll32Srv.exe	90
PID 3964 set thread context of 3160	3964	WaterMark.exe	93

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px2F1E.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32Srv.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3564	1764	WerFault.exe	86
3768	688	WerFault.exe	94

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{C9B8ED3C-FECF-11EE-ADB6-FAEF73C7C1C1} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31101660"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\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
Key created	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2652434343"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "420352864"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31101660"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31101660"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2652434343"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2657903296"	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3160	WaterMark.exe
3160	WaterMark.exe
3160	WaterMark.exe
3160	WaterMark.exe
3160	WaterMark.exe
3160	WaterMark.exe
3160	WaterMark.exe
3160	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3160	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1716	iexplore.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
2336	rundll32Srv.exe
3964	WaterMark.exe
1716	iexplore.exe
1716	iexplore.exe
2076	IEXPLORE.EXE
2076	IEXPLORE.EXE
2076	IEXPLORE.EXE
2076	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 4528 wrote to memory of 1764	4528	rundll32.exe	86
PID 4528 wrote to memory of 1764	4528	rundll32.exe	86
PID 4528 wrote to memory of 1764	4528	rundll32.exe	86
PID 1764 wrote to memory of 2336	1764	rundll32.exe	87
PID 1764 wrote to memory of 2336	1764	rundll32.exe	87
PID 1764 wrote to memory of 2336	1764	rundll32.exe	87
PID 2336 wrote to memory of 4560	2336	rundll32Srv.exe	90
PID 2336 wrote to memory of 4560	2336	rundll32Srv.exe	90
PID 2336 wrote to memory of 4560	2336	rundll32Srv.exe	90
PID 2336 wrote to memory of 4560	2336	rundll32Srv.exe	90
PID 2336 wrote to memory of 4560	2336	rundll32Srv.exe	90
PID 2336 wrote to memory of 4560	2336	rundll32Srv.exe	90
PID 2336 wrote to memory of 4560	2336	rundll32Srv.exe	90
PID 2336 wrote to memory of 4560	2336	rundll32Srv.exe	90
PID 4560 wrote to memory of 3964	4560	rundll32Srv.exe	91
PID 4560 wrote to memory of 3964	4560	rundll32Srv.exe	91
PID 4560 wrote to memory of 3964	4560	rundll32Srv.exe	91
PID 3964 wrote to memory of 3160	3964	WaterMark.exe	93
PID 3964 wrote to memory of 3160	3964	WaterMark.exe	93
PID 3964 wrote to memory of 3160	3964	WaterMark.exe	93
PID 3964 wrote to memory of 3160	3964	WaterMark.exe	93
PID 3964 wrote to memory of 3160	3964	WaterMark.exe	93
PID 3964 wrote to memory of 3160	3964	WaterMark.exe	93
PID 3964 wrote to memory of 3160	3964	WaterMark.exe	93
PID 3964 wrote to memory of 3160	3964	WaterMark.exe	93
PID 3160 wrote to memory of 688	3160	WaterMark.exe	94
PID 3160 wrote to memory of 688	3160	WaterMark.exe	94
PID 3160 wrote to memory of 688	3160	WaterMark.exe	94
PID 3160 wrote to memory of 688	3160	WaterMark.exe	94
PID 3160 wrote to memory of 688	3160	WaterMark.exe	94
PID 3160 wrote to memory of 688	3160	WaterMark.exe	94
PID 3160 wrote to memory of 688	3160	WaterMark.exe	94
PID 3160 wrote to memory of 688	3160	WaterMark.exe	94
PID 3160 wrote to memory of 688	3160	WaterMark.exe	94
PID 3160 wrote to memory of 1716	3160	WaterMark.exe	100
PID 3160 wrote to memory of 1716	3160	WaterMark.exe	100
PID 1716 wrote to memory of 2076	1716	iexplore.exe	101
PID 1716 wrote to memory of 2076	1716	iexplore.exe	101
PID 1716 wrote to memory of 2076	1716	iexplore.exe	101

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fbf13e38558108839059a6df1a214d03_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4528
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\fbf13e38558108839059a6df1a214d03_JaffaCakes118.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1764
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2336
  - - C:\Windows\SysWOW64\rundll32Srv.exe
      "C:\Windows\SysWOW64\rundll32Srv.exe"
      4⤵
      Executes dropped EXE
      Drops file in Program Files directory
      Suspicious use of WriteProcessMemory
      PID:4560
    - - C:\Program Files (x86)\Microsoft\WaterMark.exe
        
        "C:\Program Files (x86)\Microsoft\WaterMark.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:3964
      - C:\Program Files (x86)\Microsoft\WaterMark.exe
        
        "C:\Program Files (x86)\Microsoft\WaterMark.exe"
        6⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:3160
        
        C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        7⤵
        
        PID:688
        
        C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 688 -s 216
        8⤵
        Program crash
        
        PID:3768
        
        C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        7⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:1716
        
        C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1716 CREDAT:17410 /prefetch:2
        8⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2076
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1764 -s 648
    3⤵
    - Program crash
    PID:3564

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1764 -ip 1764
1⤵
PID:4816

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 688 -ip 688
1⤵
PID:3720

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

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Downloads

suggestions[1].en-US

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\UM8YFV59\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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rundll32Srv.exe

Path C:\Windows\SysWOW64\rundll32Srv.exe
Size 69KB
SHA256 f2cf33052bb9ed658351e1ff0687d0602a1f619e0976cd45852d3eb109aacf60
MD5 3284b0d95ae1f80355da5e04e79a6be1
SHA1 642bbb026f238a4eed9931772869b637621d98c8
SHA512 13712a19409818ecb66ecb2bb045a5800e4362f0ff0e9b2d158590fd501c35861ceae195f8171301ef6e72dd3b6f28184af31188836d92c171bfa6bedeb98547
SSDEEP 1536:bJupXKiER8iMQGV644h10kTYv3ZOLJ+M/DIJPlrGnWcTSy:bJuqRVQV644JcPZOdjDIJaUy
MD5 SHA1 SHA512 SSDEEP

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memory/688-36-0x0000000001260000-0x0000000001261000-memory.dmp

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memory/688-37-0x0000000001240000-0x0000000001241000-memory.dmp

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memory/1764-38-0x00000000623F0000-0x00000000624E1000-memory.dmp

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memory/1764-0-0x00000000623F0000-0x00000000624E1000-memory.dmp

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memory/2336-16-0x0000000000400000-0x0000000000459000-memory.dmp

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memory/2336-6-0x00000000001C0000-0x00000000001C3000-memory.dmp

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memory/2336-4-0x0000000000400000-0x0000000000459000-memory.dmp

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memory/3160-40-0x0000000077CD2000-0x0000000077CD3000-memory.dmp

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memory/3160-39-0x0000000000400000-0x0000000000418000-memory.dmp

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memory/3160-32-0x0000000000530000-0x0000000000531000-memory.dmp

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memory/3160-33-0x0000000000400000-0x0000000000418000-memory.dmp

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memory/3160-35-0x0000000077CD2000-0x0000000077CD3000-memory.dmp

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memory/3964-23-0x0000000000400000-0x0000000000459000-memory.dmp

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memory/3964-31-0x0000000000400000-0x0000000000459000-memory.dmp

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memory/4560-15-0x0000000000400000-0x0000000000418000-memory.dmp

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memory/4560-19-0x0000000000400000-0x0000000000418000-memory.dmp

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memory/4560-14-0x0000000000400000-0x0000000000418000-memory.dmp

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memory/4560-13-0x0000000000400000-0x0000000000418000-memory.dmp

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memory/4560-9-0x0000000000400000-0x0000000000418000-memory.dmp

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