ramnit | 098add9ba3661e494608b81706cadcd87465249be08b35299624e344aac303ec

Analysis

max time kernel
167s
max time network
174s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
14-10-2023 13:32

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General

Target

NEAS.1777f08c4dbca7859b1ff08a357c7ac0_JC.dll
Size

532KB
MD5

1777f08c4dbca7859b1ff08a357c7ac0
SHA1

9e844453aded7a6604b6acc9f38ce7b74186875c
SHA256

098add9ba3661e494608b81706cadcd87465249be08b35299624e344aac303ec
SHA512

31b64aede9259945356da5726c31878f3edad200e7f79a4771cf73f1322bbff3b39a43e05ac20beb6910fc30bd1120066708d7f7f18bad04da945acea8e06fb2
SSDEEP

12288:Rd+LZrNwWrrwMNoz4vG1OYZabtK75W9y/7ikdjgEb:RYLZreWXvyPabI7AsiYj3b

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

Executes dropped EXE 1 IoCs

pid	Process
436	rundll32mgr.exe

Loads dropped DLL 1 IoCs

pid	Process
436	rundll32mgr.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/436-12-0x0000000000400000-0x0000000000451000-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
2836	436	WerFault.exe	88

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3908 wrote to memory of 652	3908	rundll32.exe	84
PID 3908 wrote to memory of 652	3908	rundll32.exe	84
PID 3908 wrote to memory of 652	3908	rundll32.exe	84
PID 652 wrote to memory of 436	652	rundll32.exe	88
PID 652 wrote to memory of 436	652	rundll32.exe	88
PID 652 wrote to memory of 436	652	rundll32.exe	88

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.1777f08c4dbca7859b1ff08a357c7ac0_JC.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3908
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.1777f08c4dbca7859b1ff08a357c7ac0_JC.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:652
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:436
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 436 -s 468
      4⤵
      Program crash
      PID:2836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 436 -ip 436
1⤵
PID:3120

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

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

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

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

Filesize
144KB

MD5
609c9eadac4c1cc48b5f89be6c36e276

SHA1
f047b565fdb73d5b75ffaed7b2faa335e82b3514

SHA256
e982967b3a8613149cd29d659a4b4aa6241ef8e4f124458785220e76e8b18325

SHA512
246dab455d7b7661126e79bb9b1b2aee2fee26790b8fde0779d529cfceb295b9df2fb5aca2da1ab3d52f22b4157a46ea8b164e7aa02e842aca2cd27076d85fb5

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

Filesize
144KB

MD5
609c9eadac4c1cc48b5f89be6c36e276

SHA1
f047b565fdb73d5b75ffaed7b2faa335e82b3514

SHA256
e982967b3a8613149cd29d659a4b4aa6241ef8e4f124458785220e76e8b18325

SHA512
246dab455d7b7661126e79bb9b1b2aee2fee26790b8fde0779d529cfceb295b9df2fb5aca2da1ab3d52f22b4157a46ea8b164e7aa02e842aca2cd27076d85fb5

Download Submit
memory/436-5-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/436-9-0x00000000005B0000-0x0000000000601000-memory.dmp

Filesize
324KB

Download
memory/436-11-0x0000000077D32000-0x0000000077D34000-memory.dmp

Filesize
8KB

Download
memory/436-10-0x0000000077D32000-0x0000000077D33000-memory.dmp

Filesize
4KB

Download
memory/436-12-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/652-0-0x0000000075710000-0x000000007579D000-memory.dmp

Filesize
564KB

Download