ramnit | 7be02983687a86adb2890f2e3cadd002f10875475fa7b3902930366690bec460

Analysis

max time kernel
145s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
29/03/2024, 22:38

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General

Target
7be02983687a86adb2890f2e3cadd002f10875475fa7b3902930366690bec460.dll
Size 236KB
Sample240329-2kr2mabe4y
SHA256 7be02983687a86adb2890f2e3cadd002f10875475fa7b3902930366690bec460
MD5 f8a1fc2e85cb8bbf67f888b9f051a996
SHA1 6fe8b7663f9f22ab5894c9c8b27ddde78df65e76
SHA512 d6026c317094de2ae70f07cd87efb1e00db91a6ac4e51668e23e4d2f63717beb6121f04db13b13a94f97a1d6a621619588458a3af36869cc7e373e1a88d11e2b
SSDEEP 3072:63cNK7Xv5aaxoU5dwI/8xJTkO2RSOy+k/juCYD8iRVoQskq4dq:ZMLPpUxJT0x5kbuOiRVoQ+4Y
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

ramnit banker 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

UPX dump on OEP (original entry point) 2 IoCs

resource	yara_rule
behavioral2/memory/1520-6-0x0000000000400000-0x0000000000432000-memory.dmp	UPX
behavioral2/memory/1520-7-0x00000000005A0000-0x00000000005D2000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
1520	rundll32mgr.exe

Loads dropped DLL 1 IoCs

pid	Process
1520	rundll32mgr.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1520-6-0x0000000000400000-0x0000000000432000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5068	1520	WerFault.exe	87

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1516 wrote to memory of 768	1516	rundll32.exe	84
PID 1516 wrote to memory of 768	1516	rundll32.exe	84
PID 1516 wrote to memory of 768	1516	rundll32.exe	84
PID 768 wrote to memory of 1520	768	rundll32.exe	87
PID 768 wrote to memory of 1520	768	rundll32.exe	87
PID 768 wrote to memory of 1520	768	rundll32.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7be02983687a86adb2890f2e3cadd002f10875475fa7b3902930366690bec460.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1516
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7be02983687a86adb2890f2e3cadd002f10875475fa7b3902930366690bec460.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:768
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:1520
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1520 -s 536
      4⤵
      Program crash
      PID:5068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1520 -ip 1520
1⤵
PID:3044

Network

MITRE ATT&CK Matrix

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Downloads

~TM877F.tmp

Path C:\Users\Admin\AppData\Local\Temp\~TM877F.tmp
Size 1.6MB
SHA256 767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac
MD5 4f3387277ccbd6d1f21ac5c07fe4ca68
SHA1 e16506f662dc92023bf82def1d621497c8ab5890
SHA512 9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219
SSDEEP 24576:qhYK3o0FvOh/e8AuDq8TJqbEPVVdqi90gvuPGO12HoIGTufqN8:2XFvO5egq8TMbEL59JCKSN
MD5 SHA1 SHA512 SSDEEP

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rundll32mgr.exe

Path C:\Windows\SysWOW64\rundll32mgr.exe
Size 157KB
SHA256 2aab17b2f18dfb70cd737b27b1a438ad8878889070a6e025b3684483054f60c9
MD5 2ad7467eeceedd64b8bd4f6e04c3cd49
SHA1 d6c5d9878dc49ae9b531d61283609e207154a921
SHA512 7a647d4a8de90d11cd5afb82ace8354869af0893f28afcf9491d1d4de421315d9a394a5d3462d88c0eff6c5a7a4ed41897d8d0498b59b4b7428ddbb61786be2a
SSDEEP 1536:VIZZnAEjEIZvumULmj4wrraK5dZ4Ltta9Km/ec3DtAL6bmZ4bXSjrAE+fySPoqRI:GnnAQVG/LytaKItS/fiLKS+f5Aq7i
MD5 SHA1 SHA512 SSDEEP

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memory/768-0-0x0000000010000000-0x000000001003D000-memory.dmp

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memory/1520-5-0x0000000000400000-0x0000000000432000-memory.dmp

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memory/1520-6-0x0000000000400000-0x0000000000432000-memory.dmp

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memory/1520-7-0x00000000005A0000-0x00000000005D2000-memory.dmp

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memory/1520-11-0x0000000077D72000-0x0000000077D74000-memory.dmp

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memory/1520-12-0x0000000077D72000-0x0000000077D73000-memory.dmp

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads