36afc75ad063a08c2fbe7a9bba2475595eddbf3c0e7b1f6dd9a24443ce78ff2c

Analysis

max time kernel
140s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25/08/2024, 18:45

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General

Target

$PLUGINSDIR/nsisos.dll
Size

5KB
MD5

69806691d649ef1c8703fd9e29231d44
SHA1

e2193fcf5b4863605eec2a5eb17bf84c7ac00166
SHA256

ba79ab7f63f02ed5d5d46b82b11d97dac5b7ef7e9b9a4df926b43ceac18483b6
SHA512

5e5e0319e701d15134a01cb6472c624e271e99891058aef4dfe779c29c73899771a5b6f8b1cd61b543a3b3defeaecaa080c9cc4e76e84038ca08e12084f128eb
SSDEEP

48:6EyuygeHCfxwU5x+6kx/k1gONv27oBc2OkIrHHl:VeHCf2762kKsu7oGjkIrn

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1600	3192	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 1100 wrote to memory of 3192	1100	rundll32.exe	84
PID 1100 wrote to memory of 3192	1100	rundll32.exe	84
PID 1100 wrote to memory of 3192	1100	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsisos.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1100
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsisos.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3192
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3192 -s 600
    3⤵
    - Program crash
    PID:1600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3192 -ip 3192
1⤵
PID:4580

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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