ramnit | 8837b88e2d3a5e9fcde002ec2651ec2e5319f671fe4d9684d7cf5fc17f3ea4ff

Analysis

max time kernel
94s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-12-2024 04:01

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General

Target

8837b88e2d3a5e9fcde002ec2651ec2e5319f671fe4d9684d7cf5fc17f3ea4ff.dll
Size

176KB
MD5

68cdc330baa1ae5dba5a48485c49a700
SHA1

c9d56a22c688a168bf7f52d3ac466a253a42e39a
SHA256

8837b88e2d3a5e9fcde002ec2651ec2e5319f671fe4d9684d7cf5fc17f3ea4ff
SHA512

d11e3cdf259c8165022340639223a0d655bc4ecdff43191300a73e29564ef426717425207db94679e403c301bd67997a9f6948d37d013f19e8542c92af322af9
SSDEEP

3072:KLKa1Zln2E+HVpTbFVKTyDr6wjZuqhWcA69EShJEsyDdb2zSp0ecQnttCe9VfAS:wKa1f2jV+2rDIKe69EeJElwa0ebtkMf

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
3404	rundll32mgr.exe

Loads dropped DLL 1 IoCs

pid	Process
3404	rundll32mgr.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3404-5-0x0000000000400000-0x000000000042C1D8-memory.dmp	upx
behavioral2/memory/3404-10-0x0000000000400000-0x000000000042D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3048	3404	WerFault.exe	84

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 1660 wrote to memory of 1840	1660	rundll32.exe	83
PID 1660 wrote to memory of 1840	1660	rundll32.exe	83
PID 1660 wrote to memory of 1840	1660	rundll32.exe	83
PID 1840 wrote to memory of 3404	1840	rundll32.exe	84
PID 1840 wrote to memory of 3404	1840	rundll32.exe	84
PID 1840 wrote to memory of 3404	1840	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8837b88e2d3a5e9fcde002ec2651ec2e5319f671fe4d9684d7cf5fc17f3ea4ff.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1660
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\8837b88e2d3a5e9fcde002ec2651ec2e5319f671fe4d9684d7cf5fc17f3ea4ff.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1840
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:3404
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3404 -s 10168
      4⤵
      Program crash
      PID:3048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3404 -ip 3404
1⤵
PID:1636

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\~TMB882.tmp

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

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

Filesize
97KB

MD5
ef5dc2521333fb418bd5518f1db3fd08

SHA1
3d5e8d6dbf09a599f674fe9d6c1d736b0c31cb70

SHA256
75bfc7c1f54f2579541c35f721a6bbd9083c7208bd989624ceb25f16bd03afbe

SHA512
8768e95f5539dc61350f552d575c683e20e000f41283701c9c5f393da40975a02a7d432374c72565f3e1848266ee94e20d905f62b849f91f3c956b7980d87882

Download Submit
memory/3404-4-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/3404-5-0x0000000000400000-0x000000000042C1D8-memory.dmp

Filesize
176KB

Download
memory/3404-10-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download