ramnit | 1cfcb639b2848840f302d76724e6564c29c34379308587bdfb30b393a940c881

Analysis

max time kernel
148s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2025 10:24

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General

Target

JaffaCakes118_7928bd3b5487af2a4b6a3d1387ea8280.dll
Size

392KB
MD5

7928bd3b5487af2a4b6a3d1387ea8280
SHA1

0a06083d057229b96c90df6a75f46bfaa0edb5b6
SHA256

1cfcb639b2848840f302d76724e6564c29c34379308587bdfb30b393a940c881
SHA512

927a6568eb218882e0379c4f59246168e79b622f73310afa25b9af7db8f14d24bb0043f5100fb08227cd3f3bfb2f317870d6e8bcfddc7d9cd97ddd56958b028b
SSDEEP

6144:O/pb95LIbfMWZskFONizSLLsCn3cEFMWiFtNF7R5Lgr1A09JGjomeI7SQOLuS:OBHEML25BkA09JkrF7XOCS

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 2 IoCs

pid	Process
4684	rundll32mgr.exe
3888	WaterMark.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4684-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4684-13-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4684-16-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4684-14-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4684-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4684-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4684-10-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3888-28-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3888-37-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3888-38-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px99EE.tmp	rundll32mgr.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4148	1800	WerFault.exe	83
1840	184	WerFault.exe	88

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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32mgr.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 31 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31153811"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "29136229"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "31167404"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "29136229"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31153811"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{2D5C93C5-CA86-11EF-91C3-F6235BFAC6D3} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\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-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31153811"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "442751285"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
3888	WaterMark.exe
3888	WaterMark.exe
3888	WaterMark.exe
3888	WaterMark.exe
3888	WaterMark.exe
3888	WaterMark.exe
3888	WaterMark.exe
3888	WaterMark.exe
3888	WaterMark.exe
3888	WaterMark.exe
3888	WaterMark.exe
3888	WaterMark.exe
3888	WaterMark.exe
3888	WaterMark.exe
3888	WaterMark.exe
3888	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3888	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
844	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
844	iexplore.exe
844	iexplore.exe
3136	IEXPLORE.EXE
3136	IEXPLORE.EXE
3136	IEXPLORE.EXE
3136	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
4684	rundll32mgr.exe
3888	WaterMark.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 3108 wrote to memory of 1800	3108	rundll32.exe	83
PID 3108 wrote to memory of 1800	3108	rundll32.exe	83
PID 3108 wrote to memory of 1800	3108	rundll32.exe	83
PID 1800 wrote to memory of 4684	1800	rundll32.exe	84
PID 1800 wrote to memory of 4684	1800	rundll32.exe	84
PID 1800 wrote to memory of 4684	1800	rundll32.exe	84
PID 4684 wrote to memory of 3888	4684	rundll32mgr.exe	87
PID 4684 wrote to memory of 3888	4684	rundll32mgr.exe	87
PID 4684 wrote to memory of 3888	4684	rundll32mgr.exe	87
PID 3888 wrote to memory of 184	3888	WaterMark.exe	88
PID 3888 wrote to memory of 184	3888	WaterMark.exe	88
PID 3888 wrote to memory of 184	3888	WaterMark.exe	88
PID 3888 wrote to memory of 184	3888	WaterMark.exe	88
PID 3888 wrote to memory of 184	3888	WaterMark.exe	88
PID 3888 wrote to memory of 184	3888	WaterMark.exe	88
PID 3888 wrote to memory of 184	3888	WaterMark.exe	88
PID 3888 wrote to memory of 184	3888	WaterMark.exe	88
PID 3888 wrote to memory of 184	3888	WaterMark.exe	88
PID 3888 wrote to memory of 844	3888	WaterMark.exe	93
PID 3888 wrote to memory of 844	3888	WaterMark.exe	93
PID 3888 wrote to memory of 2832	3888	WaterMark.exe	94
PID 3888 wrote to memory of 2832	3888	WaterMark.exe	94
PID 844 wrote to memory of 3136	844	iexplore.exe	96
PID 844 wrote to memory of 3136	844	iexplore.exe	96
PID 844 wrote to memory of 3136	844	iexplore.exe	96

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7928bd3b5487af2a4b6a3d1387ea8280.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3108
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7928bd3b5487af2a4b6a3d1387ea8280.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1800
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of UnmapMainImage
    - Suspicious use of WriteProcessMemory
    PID:4684
  - - C:\Program Files (x86)\Microsoft\WaterMark.exe
      "C:\Program Files (x86)\Microsoft\WaterMark.exe"
      4⤵
      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:3888
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:184
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 184 -s 204
        6⤵
        Program crash
        
        PID:1840
    - - 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:844
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:844 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3136
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        
        PID:2832
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1800 -s 612
    3⤵
    - Program crash
    PID:4148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1800 -ip 1800
1⤵
PID:1616

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 184 -ip 184
1⤵
PID:2184

Network

MITRE ATT&CK Enterprise v15

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

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

Filesize
471B

MD5
a242c16707ddb2e8d8cdc25c90105a56

SHA1
9b89a87ca70fd62da5d616640802babc7edf8f6e

SHA256
cc4f0c341edb160871fc365d7d6c69d4ad8aba356a3ed1c4b7edbe938a318d73

SHA512
40664796a563b766485552f7f4c5084c185ada5bc25556d155041443ad6257a396692fcb667d0ab69e3f666aa2940d7f28e39eaded9762240a24ed40d7ec0291

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

Filesize
404B

MD5
eb4c4a33a0490609cba381c16fbc33d2

SHA1
093330d6ccef9e3bb9c677bf82e563b406f15e10

SHA256
4a8c4da3d17414caa647158b0aca74d1b5387e2ba6bd684b368843bd42e763ab

SHA512
4401cbde024be7c6624547566485ffa3a36852d42113ff45ba9bbc0503db5a7ed859cc2f03f52d5192f08ff1b4648fcf6a384b104787ea767bb6b03435920d34

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\XH3Z2ZON\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
123KB

MD5
b22def78a84600df35aac8be07af154c

SHA1
6b3ebc3791cd49c06d3e90bae15c425240741669

SHA256
7ec2b1ae10612a4a69ee34ccfbc90d725f5ef07bb9dde15db842b0087bf33fa9

SHA512
815a03191f56dc8e6ff49ec2afadf8af8b5fe630d498b849f215f6cad3cecaac5aa896b1bf8f5aefc43c5821dd9a6125991f246189b4726773a42f848a02703c

Download Submit
memory/184-32-0x00000000007F0000-0x00000000007F1000-memory.dmp

Filesize
4KB

Download
memory/184-33-0x00000000007D0000-0x00000000007D1000-memory.dmp

Filesize
4KB

Download
memory/1800-1-0x0000000062000000-0x0000000062067000-memory.dmp

Filesize
412KB

Download
memory/1800-34-0x0000000062000000-0x0000000062067000-memory.dmp

Filesize
412KB

Download
memory/3888-36-0x0000000077882000-0x0000000077883000-memory.dmp

Filesize
4KB

Download
memory/3888-35-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/3888-38-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3888-29-0x0000000077882000-0x0000000077883000-memory.dmp

Filesize
4KB

Download
memory/3888-28-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3888-27-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/3888-37-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4684-14-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4684-16-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4684-7-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4684-11-0x00000000008B0000-0x00000000008B1000-memory.dmp

Filesize
4KB

Download
memory/4684-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4684-10-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4684-13-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4684-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4684-4-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download