ramnit | 2984ffc66bac96c118beac8b321e25c1df8d045b0a7efef160219137aa3607a2

Analysis

max time kernel
103s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20250610-en
resource tags

arch:x64arch:x86image:win10v2004-20250610-enlocale:en-usos:windows10-2004-x64system
submitted
04/07/2025, 12:24

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General

Target
JaffaCakes118_1c2ca1df2866d1b58acd518729207370.dll
Size 250KB
Sample250704-plbptahn41
SHA256 2984ffc66bac96c118beac8b321e25c1df8d045b0a7efef160219137aa3607a2
MD5 1c2ca1df2866d1b58acd518729207370
SHA1 b793dd4930df7cc83943c06aaf9da5c5f6ab018c
SHA512 27a4f7a579fde5e37ac4f0a28960f27fbcb2bf470d6a9f0f83320ff479a4133f157d3afd1aa9b75508d86d0e2af14d162936a2ffa6d77a8a8836f3c758858e51
SSDEEP 6144:hcFzPFnqG0xxmobR3EatTOzXGBojZRhzqgcGAd:GlDYAHzWBWnqg
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

ramnit adware 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 2 IoCs

pid	Process
4612	rundll32Srv.exe
5964	DesktopLayer.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0004000000023157-3.dat	upx
behavioral1/memory/4612-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/4612-8-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/5964-12-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/5964-13-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/5964-16-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px6D6F.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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	rundll32Srv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DesktopLayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Modifies Internet Explorer settings 1 TTPs 26 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "458396852"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2927046899"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31190238"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31190238"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\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-1-5-21-155457276-1657131288-1088518942-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{D9E51D67-58D1-11F0-8348-C25C6E492164} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2930640967"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-155457276-1657131288-1088518942-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
5964	DesktopLayer.exe
5964	DesktopLayer.exe
5964	DesktopLayer.exe
5964	DesktopLayer.exe
5964	DesktopLayer.exe
5964	DesktopLayer.exe
5964	DesktopLayer.exe
5964	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2208	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2208	iexplore.exe
2208	iexplore.exe
5824	IEXPLORE.EXE
5824	IEXPLORE.EXE
5824	IEXPLORE.EXE
5824	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 5532 wrote to memory of 4912	5532	rundll32.exe	86
PID 5532 wrote to memory of 4912	5532	rundll32.exe	86
PID 5532 wrote to memory of 4912	5532	rundll32.exe	86
PID 4912 wrote to memory of 4612	4912	rundll32.exe	87
PID 4912 wrote to memory of 4612	4912	rundll32.exe	87
PID 4912 wrote to memory of 4612	4912	rundll32.exe	87
PID 4612 wrote to memory of 5964	4612	rundll32Srv.exe	88
PID 4612 wrote to memory of 5964	4612	rundll32Srv.exe	88
PID 4612 wrote to memory of 5964	4612	rundll32Srv.exe	88
PID 5964 wrote to memory of 2208	5964	DesktopLayer.exe	89
PID 5964 wrote to memory of 2208	5964	DesktopLayer.exe	89
PID 2208 wrote to memory of 5824	2208	iexplore.exe	90
PID 2208 wrote to memory of 5824	2208	iexplore.exe	90
PID 2208 wrote to memory of 5824	2208	iexplore.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1c2ca1df2866d1b58acd518729207370.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5532
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1c2ca1df2866d1b58acd518729207370.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4912
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4612
  - - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
      "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:5964
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:2208
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2208 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:5824

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

B398B80134F72209547439DB21AB308D_9F6005AF34C7906F717D420F892FD6D0

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B398B80134F72209547439DB21AB308D_9F6005AF34C7906F717D420F892FD6D0
Size 471B
SHA256 601e2bdca83d313ce5087a94b902e3a8237c1255e1221deeb40b3ae5c3a9d9d3
MD5 db3f2e41632254f91f7e5e41942d8ff0
SHA1 7da106440ca2f41c46abf0c425b49bbce80a1cfb
SHA512 0cb09d9c84a09722a83150f24caf27cd72f873f77e765b45ac00b177c895f095d9126aafbba60aa3c54b2d3acbee104aa5d0ad1942aca4038586a2242528fbfe
MD5 SHA1 SHA512

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B398B80134F72209547439DB21AB308D_9F6005AF34C7906F717D420F892FD6D0

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B398B80134F72209547439DB21AB308D_9F6005AF34C7906F717D420F892FD6D0
Size 400B
SHA256 fe02d9decc860280ca5ba5d0c2784cec91fb611411b68c024552e352f26982fe
MD5 5a7885ec8be7f290faab8b83e48a9f42
SHA1 3d233eff3333eab64465aef25375c276c777d947
SHA512 1e4fe7701dcae13b7f621c1047451d30babd6d8d19201492ef3ee04921211d0064b9aa06f40bfb8ef7fc604a8c8fd3a4795240623430c2603f5657cde160f02e
MD5 SHA1 SHA512

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suggestions[1].en-US

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\KEYOSEPX\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 55KB
SHA256 fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
MD5 ff5e1f27193ce51eec318714ef038bef
SHA1 b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA512 c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
SSDEEP 1536:Q+hzRsibKplyXTq8OGRnsPFG+RODTb7MXL5uXZnzE:bROzoTq0+RO7IwnY
MD5 SHA1 SHA512 SSDEEP

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memory/4612-4-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/4612-5-0x0000000000590000-0x000000000059F000-memory.dmp

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memory/4612-8-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/4912-1-0x0000000010000000-0x0000000010042000-memory.dmp

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memory/5964-12-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/5964-13-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/5964-15-0x0000000000590000-0x0000000000591000-memory.dmp

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memory/5964-16-0x0000000000400000-0x000000000042E000-memory.dmp

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