ramnit | 3fa4b48aa56ba0eb7476b445a2c333f13ae0080f39d4803f4c34a95ca131e320

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21/01/2025, 21:30

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General

Target

JaffaCakes118_07a3182e5b7a23fc280812f3626fc813.dll
Size

754KB
MD5

07a3182e5b7a23fc280812f3626fc813
SHA1

94131dd8f73672cb92bcc384bbd897f131fa3a96
SHA256

3fa4b48aa56ba0eb7476b445a2c333f13ae0080f39d4803f4c34a95ca131e320
SHA512

27dca3d3418a0ae92432c03c62873460b0e32a762bd1e5f195411d51c7200649e58797a465f1719ac9e65d061bbf04feff4fd1126fdf4d6deada78344a83225a
SSDEEP

12288:4NIyZN4+Wv4PLq6Okrh9ZN/hs9DsdzvCIKFdq3VPIdrV:49TPmirh9Zdh6MvCbdq3arV

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 1 IoCs

pid	Process
3592	rundll32mgr.exe

Loads dropped DLL 1 IoCs

pid	Process
3592	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/3592-7-0x0000000000400000-0x000000000046B000-memory.dmp	upx

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1396	3004	WerFault.exe	82
4736	3592	WerFault.exe	83

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 6 IoCs

description	pid	Process	procid_target
PID 3156 wrote to memory of 3004	3156	rundll32.exe	82
PID 3156 wrote to memory of 3004	3156	rundll32.exe	82
PID 3156 wrote to memory of 3004	3156	rundll32.exe	82
PID 3004 wrote to memory of 3592	3004	rundll32.exe	83
PID 3004 wrote to memory of 3592	3004	rundll32.exe	83
PID 3004 wrote to memory of 3592	3004	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_07a3182e5b7a23fc280812f3626fc813.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3156
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_07a3182e5b7a23fc280812f3626fc813.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3004
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:3592
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 10188
      4⤵
      Program crash
      PID:4736
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3004 -s 608
    3⤵
    - Program crash
    PID:1396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3004 -ip 3004
1⤵
PID:3776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3592 -ip 3592
1⤵
PID:1200

Network

MITRE ATT&CK Enterprise v15

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\~TM883B.tmp

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

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

Filesize
169KB

MD5
335f0aeb047ac7782090828b5d4fa10e

SHA1
73355b1c843bec7be94b0a39efb5ff3b1b4ee547

SHA256
6df4c841c30d414cfee93573963036abfd669627081705c6a0d9e65fd6846f53

SHA512
635d1e473a0f2cebad020f80e211b55bcb12742ddde1e65db182b077c8873f639b491ab8d11a6781095cf16729e03f93696514de72b58efad8157fad3ff399f1

Download Submit
memory/3004-1-0x0000000010000000-0x00000000100C2000-memory.dmp

Filesize
776KB

Download
memory/3004-10-0x0000000010000000-0x00000000100C2000-memory.dmp

Filesize
776KB

Download
memory/3592-6-0x00000000021C0000-0x000000000222B000-memory.dmp

Filesize
428KB

Download
memory/3592-7-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download