76cfa33ef18d07a5c80c1d97ae71c984667fa6f70ca96fe2b9e3794531557bdb

Analysis

max time kernel
146s
max time network
151s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
02/08/2024, 18:59

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General

Target

$PLUGINSDIR/nsis7z.dll
Size

391KB
MD5

c6a070b3e68b292bb0efc9b26e85e9cc
SHA1

5a922b96eda6595a68fd0a9051236162ff2e2ada
SHA256

66ac8bd1f273a73e17a3f31d6add739d3cb0330a6417faeda11a9cae00b62d8b
SHA512

8eff8fc16f5bb574bd9483e3b217b67a8986e31497368c06fdaa3a1e93a40aee94a5b31729d01905157b0ae1e556a402f43cd29a4d30a0587e1ec334458a44e8
SSDEEP

6144:KI4T3K6gRPI8G1W3ODli+GIuuu8M1CkJagSdJFCAvgw7nv0Yy6ptK:KBK6gU1YsI+GIuEbgagS7FCyp7cD6po

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
656	2360	WerFault.exe	81

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 4836 wrote to memory of 2360	4836	rundll32.exe	81
PID 4836 wrote to memory of 2360	4836	rundll32.exe	81
PID 4836 wrote to memory of 2360	4836	rundll32.exe	81

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsis7z.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4836
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsis7z.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2360
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2360 -s 480
    3⤵
    - Program crash
    PID:656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2360 -ip 2360
1⤵
PID:3884

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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