ramnit | 8dea99d9d23e98f8b67c6bcafb6d1f59a16406d229056567b3ee6bd090d3eaac

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02/01/2025, 06:31

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General

Target

JaffaCakes118_633e02336a45e4fd40d46cfa554f999d.dll
Size

751KB
MD5

633e02336a45e4fd40d46cfa554f999d
SHA1

46ae375ded8b3591e4739ffc75b564227045a283
SHA256

8dea99d9d23e98f8b67c6bcafb6d1f59a16406d229056567b3ee6bd090d3eaac
SHA512

4c58fb9db9ea00b36ded52e7ad924912c1eefd5ebd65612b9b3030654a34c6eda023ed057c39f695b38fb6d6dc9288f3d884cfa8c79dafa56ee41e5f3fd6f747
SSDEEP

12288:6zb9rMfc+CKUQyUmjtc4euuzPrs9pGp8hunWoopooK9kwP+ACQL:6zb1MlCKUQyUmjtczu6Prs9pgWoopooG

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
552	rundll32mgr.exe
3112	WaterMark.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/552-14-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/552-12-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/552-10-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/552-15-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/552-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/552-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/552-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3112-28-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3112-32-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3112-31-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3112-38-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3112-40-0x0000000000400000-0x0000000000421000-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	rundll32mgr.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px1037.tmp	rundll32mgr.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4704	2812	WerFault.exe	86

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	rundll32mgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WaterMark.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 33 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "444184069"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "442778225"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31153376"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31153376"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "442564495"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31153376"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "442778225"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "444184069"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31153376"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{45E07BE5-C8D3-11EF-BDBF-FE5A08828E79} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
3112	WaterMark.exe
3112	WaterMark.exe
3112	WaterMark.exe
3112	WaterMark.exe
3112	WaterMark.exe
3112	WaterMark.exe
3112	WaterMark.exe
3112	WaterMark.exe
3112	WaterMark.exe
3112	WaterMark.exe
3112	WaterMark.exe
3112	WaterMark.exe
3112	WaterMark.exe
3112	WaterMark.exe
3112	WaterMark.exe
3112	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3112	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1772	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1772	iexplore.exe
1772	iexplore.exe
4268	IEXPLORE.EXE
4268	IEXPLORE.EXE
4268	IEXPLORE.EXE
4268	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
552	rundll32mgr.exe
3112	WaterMark.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 3300 wrote to memory of 2788	3300	rundll32.exe	83
PID 3300 wrote to memory of 2788	3300	rundll32.exe	83
PID 3300 wrote to memory of 2788	3300	rundll32.exe	83
PID 2788 wrote to memory of 552	2788	rundll32.exe	84
PID 2788 wrote to memory of 552	2788	rundll32.exe	84
PID 2788 wrote to memory of 552	2788	rundll32.exe	84
PID 552 wrote to memory of 3112	552	rundll32mgr.exe	85
PID 552 wrote to memory of 3112	552	rundll32mgr.exe	85
PID 552 wrote to memory of 3112	552	rundll32mgr.exe	85
PID 3112 wrote to memory of 2812	3112	WaterMark.exe	86
PID 3112 wrote to memory of 2812	3112	WaterMark.exe	86
PID 3112 wrote to memory of 2812	3112	WaterMark.exe	86
PID 3112 wrote to memory of 2812	3112	WaterMark.exe	86
PID 3112 wrote to memory of 2812	3112	WaterMark.exe	86
PID 3112 wrote to memory of 2812	3112	WaterMark.exe	86
PID 3112 wrote to memory of 2812	3112	WaterMark.exe	86
PID 3112 wrote to memory of 2812	3112	WaterMark.exe	86
PID 3112 wrote to memory of 2812	3112	WaterMark.exe	86
PID 3112 wrote to memory of 1772	3112	WaterMark.exe	92
PID 3112 wrote to memory of 1772	3112	WaterMark.exe	92
PID 3112 wrote to memory of 4368	3112	WaterMark.exe	93
PID 3112 wrote to memory of 4368	3112	WaterMark.exe	93
PID 1772 wrote to memory of 4268	1772	iexplore.exe	95
PID 1772 wrote to memory of 4268	1772	iexplore.exe	95
PID 1772 wrote to memory of 4268	1772	iexplore.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_633e02336a45e4fd40d46cfa554f999d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3300
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_633e02336a45e4fd40d46cfa554f999d.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2788
- - 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:552
  - - 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:3112
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:2812
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2812 -s 204
        6⤵
        Program crash
        
        PID:4704
    - - 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:1772
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1772 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4268
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        
        PID:4368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2812 -ip 2812
1⤵
PID:3512

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
30f59b20e935520badc298242cb4cff1

SHA1
00622b2054eb148a8459c2ccd0b22606c2d5c7f6

SHA256
4a981d199e551f2b8c8fa22f0e3fbc264e876e5ed243d83331b2a6083a753e3c

SHA512
f22ca09eb3266cee3f363e4f3f955745382679d136d61e7c27f81081cd77efa5f82f82220526928f73049e692b7c060f64032dfae0f967c579c6e6acfd2e8d21

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

Filesize
404B

MD5
fb9d79afcdef80af2a667f9bd1cbabfb

SHA1
9d4da3a7498db32dbcf90db635c564e7b157df0a

SHA256
8808fc921c0fd9a1abf5c150f78f7b9445fa758a99db562df18a71745038f7b9

SHA512
106499ffafc39c7e64c6b5521ba3c470ae0cb86ecda289184f1181256df1705d389b6d39e364d21b73cbda6ed18ceaeab46610a433daf1bd3819238e0656dbe9

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver942D.tmp

Filesize
15KB

MD5
1a545d0052b581fbb2ab4c52133846bc

SHA1
62f3266a9b9925cd6d98658b92adec673cbe3dd3

SHA256
557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

SHA512
bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\6IJLDY7V\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

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

Filesize
93KB

MD5
553d850aecde67247478a5aeddc4e512

SHA1
0befdcab0a32020f6813c5b7caac96878c612f96

SHA256
9e12d3205c555294701c02701fb1e369bdc5f8d7d46a1a8555d9fa0d88171415

SHA512
520e5db12ecbfe1791799e091b62274000ccbcd117aa014434fc1834e4f1c6128de139a743dc00b3855cc3582600aa7493edc7ee7c12c44817a6d6e40331a4a5

Download Submit
memory/552-10-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/552-15-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/552-12-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/552-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/552-7-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/552-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/552-14-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/552-11-0x0000000000910000-0x0000000000911000-memory.dmp

Filesize
4KB

Download
memory/552-4-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/2788-0-0x0000000005000000-0x00000000050C1000-memory.dmp

Filesize
772KB

Download
memory/2812-35-0x0000000001220000-0x0000000001221000-memory.dmp

Filesize
4KB

Download
memory/2812-34-0x0000000001240000-0x0000000001241000-memory.dmp

Filesize
4KB

Download
memory/3112-29-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/3112-31-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3112-36-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/3112-37-0x0000000077E52000-0x0000000077E53000-memory.dmp

Filesize
4KB

Download
memory/3112-38-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3112-40-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3112-32-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3112-33-0x0000000077E52000-0x0000000077E53000-memory.dmp

Filesize
4KB

Download
memory/3112-28-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3112-21-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download