850f227ef098450656a0704b5507caba6bd1128de78ffc7ac037a4801716b497

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04/02/2025, 08:49

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General

Target

$PLUGINSDIR/System.dll
Size

11KB
MD5

8b3830b9dbf87f84ddd3b26645fed3a0
SHA1

223bef1f19e644a610a0877d01eadc9e28299509
SHA256

f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37
SHA512

d13cfd98db5ca8dc9c15723eee0e7454975078a776bce26247228be4603a0217e166058ebadc68090afe988862b7514cb8cb84de13b3de35737412a6f0a8ac03
SSDEEP

192:ex24sihno00Wfl97nH6BenXwWobpWBTtvShJ5omi7dJWjOlESlS:h8QIl972eXqlWBFSt273YOlEz

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2380	2384	WerFault.exe	30

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 1732 wrote to memory of 2384	1732	rundll32.exe	30
PID 1732 wrote to memory of 2384	1732	rundll32.exe	30
PID 1732 wrote to memory of 2384	1732	rundll32.exe	30
PID 1732 wrote to memory of 2384	1732	rundll32.exe	30
PID 1732 wrote to memory of 2384	1732	rundll32.exe	30
PID 1732 wrote to memory of 2384	1732	rundll32.exe	30
PID 1732 wrote to memory of 2384	1732	rundll32.exe	30
PID 2384 wrote to memory of 2380	2384	rundll32.exe	31
PID 2384 wrote to memory of 2380	2384	rundll32.exe	31
PID 2384 wrote to memory of 2380	2384	rundll32.exe	31
PID 2384 wrote to memory of 2380	2384	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2384
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2384 -s 224
    3⤵
    - Program crash
    PID:2380

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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