38dda5e4059a39cb4d766f65d84e8e02a7189bf50803c719af45403a1ee3c35f

Analysis

max time kernel
95s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2024 18:44

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General

Target

$TEMP/GuestRummy.dll
Size

19KB
MD5

fc2b4128dbe4d1885b5f3297b8d77e3d
SHA1

239043c06a87fd038f242a240d64996acd7de8b9
SHA256

95965a6f6a610d3cd68ab6f2eabdb2fb23c29db258761ea8b547c754fe11ce4e
SHA512

a477136f2ebf89257197d86cd35b050e7fd0ad8cce97f3d532ac9749ddb9e4dfc9bce365543ab812b80a182f10f631bddb322bb9a89e745cb75a7116e2061f84
SSDEEP

384:FVOKW3jnEacd8LPgp3e0ZsYGUBmcCR65o4yTEzCwa:vOKW3rEacd8rjYGUB

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2020	976	WerFault.exe	83

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 2900 wrote to memory of 976	2900	rundll32.exe	83
PID 2900 wrote to memory of 976	2900	rundll32.exe	83
PID 2900 wrote to memory of 976	2900	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\GuestRummy.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2900
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\GuestRummy.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:976
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 976 -s 644
    3⤵
    - Program crash
    PID:2020

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 976 -ip 976
1⤵
PID:4940

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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