259da693dd39c3d1b5405506769698d3c3e3ca6262396f7d2558ad326de72a8f

Analysis

max time kernel
150s
max time network
126s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
25/11/2023, 06:58

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

GTA 5 - Stutter Fix/Copy All These into Game Directory/gpu_simulator.fkr
Size

314KB
MD5

683a0378279bfd010ace4b79176d59b8
SHA1

c67f0a4807417dc8f9eb00269990f7277802416d
SHA256

35a74516c3a33ed44a0131e5eb75c5c180a24e3157f386cc8b611090f7c63f18
SHA512

351e3dde797839cc06b86cc887e566d682cdd566dfdb993307380efdc3e37954e877f4fefceba73622a34dc39060f0dfd154ea3e5b7ace1a22a93aba8ede4c52
SSDEEP

6144:Ucxawg0klBbyoKz9Fg98KwxYozV3jVjV+b2F23GjnWyINlkZTfOA:UcxawJ2BuoKpqdwxvz/YyFdjnWLv0TfT

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000_CLASSES\fkr_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000_CLASSES\.fkr\ = "fkr_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000_CLASSES\fkr_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000_CLASSES\fkr_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000_CLASSES\fkr_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000_CLASSES\fkr_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000_CLASSES\.fkr	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000_CLASSES\fkr_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2728	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2728	AcroRd32.exe
2728	AcroRd32.exe
2728	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2572 wrote to memory of 2888	2572	cmd.exe	29
PID 2572 wrote to memory of 2888	2572	cmd.exe	29
PID 2572 wrote to memory of 2888	2572	cmd.exe	29
PID 2888 wrote to memory of 2728	2888	rundll32.exe	30
PID 2888 wrote to memory of 2728	2888	rundll32.exe	30
PID 2888 wrote to memory of 2728	2888	rundll32.exe	30
PID 2888 wrote to memory of 2728	2888	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\GTA 5 - Stutter Fix\Copy All These into Game Directory\gpu_simulator.fkr"
1⤵
- Suspicious use of WriteProcessMemory
PID:2572
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\GTA 5 - Stutter Fix\Copy All These into Game Directory\gpu_simulator.fkr
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2888
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\GTA 5 - Stutter Fix\Copy All These into Game Directory\gpu_simulator.fkr"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2728

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
04e6e1c36f884c33dd44209e855c97ea

SHA1
d4824dfff477d7c5bde1137f7410f1ed33669d8d

SHA256
46eae385c37acb9c4f856f997e6f00e8160528b73c0856c19ba9ad6f86263a35

SHA512
fdd2fb6557f4b1f36975d7b3b558adf2506c226c97fef71e8c1bf86bb978a68842e9be7e4bf3e446481f5a96a0ecc6cffcfeb00017ff66754f7f7920b1fb4208

Download Submit