ramnit | 137314ad1e57832e676d3d74c75815dd450abb1b01d46abef6bd63a1268def13

Analysis

max time kernel
148s
max time network
129s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
14/10/2026, 12:25

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General

Target
jaffacakes118_Virus.Win32.Nimnul.a.dll
Size 232KB
Sample261014-plpxfacz6x
SHA256 137314ad1e57832e676d3d74c75815dd450abb1b01d46abef6bd63a1268def13
MD5 8c1d1bd9b72164d350fbd463dcbc2886
SHA1 2d516132497f2d8cb55274b6fa0029fd42f53830
SHA512 92bcbf8d0ca940bad6f99994e36039103ed44d4e041766afe5d03d150c3fa2e3dfeca6bf9f20cd446774cdf3722e3729a9b4835f88137466c8951c7542dc498e
SSDEEP 6144:lDu9wy/NUj973q0kFCr1MGMfoDO5hs2oEJ/tv6r:lDuey/TsMGBDOjs
TLSH
T19134BE1575E0C631DC21CE70486DB736A6FEB9F7271C8E87A788056D5F7E780A20A683
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

banker discovery ramnit spyware stealer trojan upx worm

Malware Config

Signatures

Family: 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
792	rundll32mgr.exe

Loads dropped DLL 1 IoCs

pid	Process
792	rundll32mgr.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/792-10-0x0000000000400000-0x000000000042A000-memory.dmp	upx

Program crash 2 IoCs

pid	pid_target	Process	procid_target
5496	2588	WerFault.exe	89
5516	792	WerFault.exe	90

System Location Discovery: System Language Discovery 1 TTPs 2 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

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1208 wrote to memory of 2588	1208	rundll32.exe	89
PID 2588 wrote to memory of 792	2588	rundll32.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Virus.Win32.Nimnul.a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1208
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Virus.Win32.Nimnul.a.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2588
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:792
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 792 -s 540
      4⤵
      Program crash
      PID:5516
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2588 -s 596
    3⤵
    - Program crash
    PID:5496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 792 -ip 792
1⤵
PID:2768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2588 -ip 2588
1⤵
PID:4840

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

~TMA6C5.tmp

Path C:\Users\Admin\AppData\Local\Temp\~TMA6C5.tmp
Size 1.7MB
SHA256 45369a39532d605353ca49d2c2c901853cd5181e84b64fbfbfdb19d5fe60539d
MD5 a49bad7718978035494a1ba8f445753c
SHA1 2975908be9449bd695a57d192850626f2519b838
SHA512 04c53db2b9768e619bd24cd55ac87cac0ef5b6164345f18c57c950e5704efa98d4f60767c4a15ff88f5df562f3ff16b250d92ca1b9244086b403fba25c69eea8
SSDEEP 24576:mJVny4SiGGB49pFrjWpbqne6fuYQSX+UIXzbqF/j/2AqfsqLrDZaXIIDA6eW:D4SGODe6fuNs+UWzKj+AbqcXUW
TLSH
T15C85B35163E94215F6F73B7059BD26340E7A7CA5AB78C2DF128411AE8EB0EC08D717A3
MD5 SHA1 SHA512 SSDEEP TLSH

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rundll32mgr.exe

Path C:\Windows\SysWOW64\rundll32mgr.exe
Size 106KB
SHA256 936b14fbbf629fcf92ac06673d974de2b2a44a109953e6664e1c36a4e5c9d27c
MD5 dcd2cafa72c9d5bd898b636a18133d3c
SHA1 b55e85453de9254cbf4c21c0de92d82c6deefccb
SHA512 59e475f668015b3a6372d79ea6459b21ae591d73305b7696ef139fe0e716f1038595ea5df079e1850535e6358aef4d8e92bdee68ffd07b44471bc7133041952c
SSDEEP 3072:Vso1Tbg90dIKmR5j273PAmr0auTmqqGcDCn+C5C7c:b1XqN5a73Px3uTBqGcDCn+C5CY
TLSH
T119B3AFC53018C717C7A26C71F87399E366659A621C3E6132F6123BD23AF2E95BB34709
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/792-6-0x00000000021A0000-0x00000000021CA000-memory.dmp

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memory/792-8-0x0000000077BF8000-0x0000000077BF9000-memory.dmp

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memory/792-10-0x0000000000400000-0x000000000042A000-memory.dmp

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memory/2588-0-0x0000000002B10000-0x0000000002B58000-memory.dmp

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memory/2588-9-0x0000000002B10000-0x0000000002B58000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads