ramnit | b389e19dfa7570d845c7beae49eea7cbc210ce8ef4d7d3da9c7ff1490add538a

Analysis

max time kernel
156s
max time network
186s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
29/11/2022, 16:06

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General

Target

b389e19dfa7570d845c7beae49eea7cbc210ce8ef4d7d3da9c7ff1490add538a.dll
Size

176KB
MD5

c168012f0785b1ec71e5984f01a1b980
SHA1

a6ad00291ee0659bb04403974428409bb64ee914
SHA256

b389e19dfa7570d845c7beae49eea7cbc210ce8ef4d7d3da9c7ff1490add538a
SHA512

a67a6fb3803a628ffd270bc19c395d7186f61671b7431fb68bb102472d273e0f197000e7a3691dc26ddaa38ee6c2d820bac5c22d41c09a53b8486f8d10beb62f
SSDEEP

3072:Tn4cV8gf2u4rZ5tKlh/+3QM6+Zr/AmB/tt9ivbAk+IwEeaNyM:b4y8gOv2viFVImJTYvR+Iw3aNyM

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
2776	rundll32mgr.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2776-136-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/2776-138-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral2/memory/2776-139-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral2/memory/2776-141-0x0000000000400000-0x0000000000426000-memory.dmp	upx

Loads dropped DLL 1 IoCs

pid	Process
2776	rundll32mgr.exe

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
688	2776	WerFault.exe	84

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
2776	rundll32mgr.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4960 wrote to memory of 4396	4960	rundll32.exe	16
PID 4960 wrote to memory of 4396	4960	rundll32.exe	16
PID 4960 wrote to memory of 4396	4960	rundll32.exe	16
PID 4396 wrote to memory of 2776	4396	rundll32.exe	84
PID 4396 wrote to memory of 2776	4396	rundll32.exe	84
PID 4396 wrote to memory of 2776	4396	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b389e19dfa7570d845c7beae49eea7cbc210ce8ef4d7d3da9c7ff1490add538a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4960
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b389e19dfa7570d845c7beae49eea7cbc210ce8ef4d7d3da9c7ff1490add538a.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:4396
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of UnmapMainImage
    PID:2776
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2776 -s 236
      4⤵
      Program crash
      PID:688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2776 -ip 2776
1⤵
PID:5072

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\~TM8FDC.tmp

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

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

Filesize
81KB

MD5
cb41358796a14f05bccfddb098900c71

SHA1
8c14e0d55d4de69ea7b87db5dbe3d4bd39d13935

SHA256
6d5dca57b9f625f604a592e9d2ba39ec8d454d62bf387c61346c53c081463e0b

SHA512
8a2f816700f240574989142ae295b3d90f4ae1c4fd2141ae17b37d2111e5a83b3d452ceee1f1914091cf05f1889f5b6d83664a78674f0a653535c078501950de

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

Filesize
81KB

MD5
cb41358796a14f05bccfddb098900c71

SHA1
8c14e0d55d4de69ea7b87db5dbe3d4bd39d13935

SHA256
6d5dca57b9f625f604a592e9d2ba39ec8d454d62bf387c61346c53c081463e0b

SHA512
8a2f816700f240574989142ae295b3d90f4ae1c4fd2141ae17b37d2111e5a83b3d452ceee1f1914091cf05f1889f5b6d83664a78674f0a653535c078501950de

Download Submit
memory/2776-136-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2776-137-0x000000000041C000-0x000000000042A000-memory.dmp

Filesize
56KB

Download
memory/2776-138-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2776-139-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2776-141-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2776-142-0x0000000076EA0000-0x0000000077043000-memory.dmp

Filesize
1.6MB

Download