12b46d737df267afe9075d02d14360af5bfdae9568158afbe65e488cb6889c1f

Analysis

max time kernel
117s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11/01/2025, 04:38

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General

Target

Gelsenkirchen.dll
Size

148KB
MD5

f7b38cfb938ad523171b90e0230d6a96
SHA1

2b1141db385d2f02448618967a5560438c79ea31
SHA256

3e58ad4e77d20cc761c472eb1c7bfdaabbcc657fdd05e099858cd0f16d5d7339
SHA512

cedbcaec28802495b97545326ded0c579a480b8aa8c05455aa61e00b5d9153c1a6327ac23f70d7623b43386817014063dc33bf36fceb61fe9ebf0dd06b699ffc
SSDEEP

3072:W2vzg2cgaFwui2/MEez3UFSqqCTR0p+6pn06:7vs5Fw80EyUZLTU06

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2372	2176	WerFault.exe	31

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 11 IoCs

description	pid	Process	procid_target
PID 2160 wrote to memory of 2176	2160	rundll32.exe	31
PID 2160 wrote to memory of 2176	2160	rundll32.exe	31
PID 2160 wrote to memory of 2176	2160	rundll32.exe	31
PID 2160 wrote to memory of 2176	2160	rundll32.exe	31
PID 2160 wrote to memory of 2176	2160	rundll32.exe	31
PID 2160 wrote to memory of 2176	2160	rundll32.exe	31
PID 2160 wrote to memory of 2176	2160	rundll32.exe	31
PID 2176 wrote to memory of 2372	2176	rundll32.exe	32
PID 2176 wrote to memory of 2372	2176	rundll32.exe	32
PID 2176 wrote to memory of 2372	2176	rundll32.exe	32
PID 2176 wrote to memory of 2372	2176	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Gelsenkirchen.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2160
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\Gelsenkirchen.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2176
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2176 -s 260
    3⤵
    - Program crash
    PID:2372

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

Windows 7 deprecation

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