ac4a0328d512526f20122f0399d557b1334f3b2ac264d9e749d6d2788e956b2e

Analysis

max time kernel
94s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-01-2025 15:47

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General

Target

$PLUGINSDIR/skjesair.dll
Size

38KB
MD5

f9099ad46c16a20b52f173f5806426bf
SHA1

b7543e7af6930e16520f41bc0c3e5fdd5f1ce45d
SHA256

e80f972bce5004dfe27ca8a8063f354be8b0b618119db1e706242d28217e02ca
SHA512

6d6c2aec061cdc3e34b7774e1a16971f246b79da659bc8140d0965130a54bf81f57ad50d56314b5b5f551eb1d24e15d2d6131e041665dc3ecb921af3a426cdc1
SSDEEP

768:JbqF9FSKFaJ7arlVhknrYOyW5XX+Jv+1:kLF5Hk3O41

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3632	1188	WerFault.exe	83

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 7 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 1188	1600	rundll32.exe	83
PID 1600 wrote to memory of 1188	1600	rundll32.exe	83
PID 1600 wrote to memory of 1188	1600	rundll32.exe	83
PID 1188 wrote to memory of 1420	1188	rundll32.exe	84
PID 1188 wrote to memory of 1420	1188	rundll32.exe	84
PID 1188 wrote to memory of 1420	1188	rundll32.exe	84
PID 1188 wrote to memory of 1420	1188	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\skjesair.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1600
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\skjesair.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1188
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\skjesair.dll,#1
    3⤵
    PID:1420
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1188 -s 732
    3⤵
    - Program crash
    PID:3632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1188 -ip 1188
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

Replay Monitor

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Downloads

memory/1188-0-0x0000000010009000-0x000000001000B000-memory.dmp

Filesize
8KB

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