5a15946c4b824da5344330820a9d1ef3e9c76d5d4d94ffdde4df827aafa85471

Analysis

max time kernel
92s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01/09/2024, 22:08

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General

Target

Muruncher_1.4.0.1/Other/Source/jpeg.dll
Size

165KB
MD5

b3572ac8d50604ca0e0328dfa09a3d69
SHA1

623993425015498fd74dfbcf638654d4f72bd151
SHA256

ac3f25027c9725fb6c6a4d54b3764b08cd99928a395b1cfe8682bb447b3790be
SHA512

a17b010d7ee7b9e3461fde72219904187a3ef18cfabe459ee7e325dd336293b55069840737f3ce25ea390cc172cefb68fb85865e2fc7ed7b03a70e2d3161354c
SSDEEP

3072:ysJGuNqNX8pNhsgL5hYA/caYIq/WF1lWbos4DMq88mfU:pGuNqNX6dZcF/WF1lU14DMSmc

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
928	4792	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 1 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

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 4792	2104	rundll32.exe	84
PID 2104 wrote to memory of 4792	2104	rundll32.exe	84
PID 2104 wrote to memory of 4792	2104	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Muruncher_1.4.0.1\Other\Source\jpeg.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\Muruncher_1.4.0.1\Other\Source\jpeg.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4792
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4792 -s 600
    3⤵
    - Program crash
    PID:928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4792 -ip 4792
1⤵
PID:2304

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

memory/4792-0-0x0000000064F40000-0x0000000064F67000-memory.dmp

Filesize
156KB

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