4c1df01c44c5a69f9efa30528117c3d90f2df8a78c23a7ccc25412da15793531

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03/12/2024, 02:23

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General

Target

$PLUGINSDIR/System.dll
Size

11KB
MD5

b0c77267f13b2f87c084fd86ef51ccfc
SHA1

f7543f9e9b4f04386dfbf33c38cbed1bf205afb3
SHA256

a0cac4cf4852895619bc7743ebeb89f9e4927ccdb9e66b1bcd92a4136d0f9c77
SHA512

f2b57a2eea00f52a3c7080f4b5f2bb85a7a9b9f16d12da8f8ff673824556c62a0f742b72be0fd82a2612a4b6dbd7e0fdc27065212da703c2f7e28d199696f66e
SSDEEP

192:4PtkiQJr7jHYT87RfwXQ6YSYtOuVDi7IsFW14Ll8CO:H78TQIgGCDp14LGC

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2776	2692	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 3052 wrote to memory of 2692	3052	rundll32.exe	31
PID 3052 wrote to memory of 2692	3052	rundll32.exe	31
PID 3052 wrote to memory of 2692	3052	rundll32.exe	31
PID 3052 wrote to memory of 2692	3052	rundll32.exe	31
PID 3052 wrote to memory of 2692	3052	rundll32.exe	31
PID 3052 wrote to memory of 2692	3052	rundll32.exe	31
PID 3052 wrote to memory of 2692	3052	rundll32.exe	31
PID 2692 wrote to memory of 2776	2692	rundll32.exe	32
PID 2692 wrote to memory of 2776	2692	rundll32.exe	32
PID 2692 wrote to memory of 2776	2692	rundll32.exe	32
PID 2692 wrote to memory of 2776	2692	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3052
- 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:2692
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2692 -s 220
    3⤵
    - Program crash
    PID:2776

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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