9ecd96e90def2fa42b060d64290129903115d7410b2c2008e8d4b928c4b5846a

Analysis

max time kernel
122s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07-09-2024 17:58

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General

Target

$PLUGINSDIR/StdUtils.dll
Size

101KB
MD5

33b4e69e7835e18b9437623367dd1787
SHA1

53afa03edaf931abdc2d828e5a2c89ad573d926c
SHA256

72d38ef115e71fc73dc5978987c583fc8c6b50ff12e4a5d30649a4d164a8b6ae
SHA512

ca890e785d1a0a7e0b4a748416fba417826ae66b46e600f407d4e795b444612a8b830f579f2cf5b6e051bea800604f34f8801cc3daf05c8d29ad05bcda454a77
SSDEEP

1536:Ayy+wx2YAlWrU5OX9crt5c4DBqiC7hk333kbQk:ry+wojIwgNcr1a7WH0b

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4608 3188 WerFault.exe rundll32.exe
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

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe

pid	pid_target	process	target process
4608	3188	WerFault.exe	rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2752 wrote to memory of 3188	2752	rundll32.exe	rundll32.exe
PID 2752 wrote to memory of 3188	2752	rundll32.exe	rundll32.exe
PID 2752 wrote to memory of 3188	2752	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\StdUtils.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2752
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\StdUtils.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3188
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3188 -s 612
    3⤵
    - Program crash
    PID:4608

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3188 -ip 3188
1⤵
PID:1152

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4512,i,16315016104747277319,5510969007830467313,262144 --variations-seed-version --mojo-platform-channel-handle=4656 /prefetch:8
1⤵
PID:4540

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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