9553eed5c7ccd78596656a5bffef6d8c2422fcc427e2a72fdf8598ec1f849101

Analysis

max time kernel
899s
max time network
434s
platform
windows11-21h2_x64
resource
win11-20251223-en
resource tags

arch:x64arch:x86image:win11-20251223-enlocale:en-usos:windows11-21h2-x64system
submitted
24/12/2025, 11:52

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
$PLUGINSDIR/AccessControl.dll
Size 8KB
Sample251224-n17kcsby3c
SHA256 ccc6aaf1071d9077475b574d9bf1fc23de40a06547fc90cf4255a44d3bf631ac
MD5 65d017ba65785b43720de6c9979a2e8c
SHA1 0aed2846e1b338077bae5a7f756c345a5c90d8a9
SHA512 31a19105892d5a9b49eb81a90a2330c342a5504fa4940b99a12279a63e1a19ee5d4b257d0900794ff7021a09408995a5d12e95cc38f09cf12fb2fd860d205c95
SSDEEP 96:18YNfTAJj9KMMVSyPg8uxZAQ/zdVJF/mSsQwV6i8zRRxqBt/FZTIVe7/cIH8ykeO:1XwKMMfPuxJ/zb+b6fR+bZEwywQ9
MD5 SHA1 SHA512 SSDEEP

Score

5^/10

discovery upx

Malware Config

Signatures

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4784-0-0x0000000074940000-0x000000007494B000-memory.dmp	upx
behavioral2/memory/4784-1-0x0000000074940000-0x000000007494B000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2440	4784	WerFault.exe	76

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 1 IoCs

description	pid	Process	procid_target
PID 4756 wrote to memory of 4784	4756	rundll32.exe	76

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\AccessControl.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4756
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\AccessControl.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4784
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4784 -s 468
    3⤵
    - Program crash
    PID:2440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 352 -p 4784 -ip 4784
1⤵
PID:4144

Network

MITRE ATT&CK Enterprise v16

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

Loading Replay Monitor...

Downloads

memory/4784-0-0x0000000074940000-0x000000007494B000-memory.dmp

Download

memory/4784-1-0x0000000074940000-0x000000007494B000-memory.dmp