b9b5a672b3d731ed09326c2e8622fadc122c1bec3d1acb11f4925456108fdb40

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
06/08/2024, 04:00

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General

Target

$PLUGINSDIR/StdUtils.dll
Size

100KB
MD5

c6a6e03f77c313b267498515488c5740
SHA1

3d49fc2784b9450962ed6b82b46e9c3c957d7c15
SHA256

b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e
SHA512

9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803
SSDEEP

3072:WNuZmJ9TDP3ahD2TF7Rq9cJNPhF9vyHf:WNuZ81zaAFHhF9v

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2444	2080	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 2064 wrote to memory of 2080	2064	rundll32.exe	31
PID 2064 wrote to memory of 2080	2064	rundll32.exe	31
PID 2064 wrote to memory of 2080	2064	rundll32.exe	31
PID 2064 wrote to memory of 2080	2064	rundll32.exe	31
PID 2064 wrote to memory of 2080	2064	rundll32.exe	31
PID 2064 wrote to memory of 2080	2064	rundll32.exe	31
PID 2064 wrote to memory of 2080	2064	rundll32.exe	31
PID 2080 wrote to memory of 2444	2080	rundll32.exe	32
PID 2080 wrote to memory of 2444	2080	rundll32.exe	32
PID 2080 wrote to memory of 2444	2080	rundll32.exe	32
PID 2080 wrote to memory of 2444	2080	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\StdUtils.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2064
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\StdUtils.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2080
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2080 -s 220
    3⤵
    - Program crash
    PID:2444

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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