3ac921b88e687c9f62702af590a55b2216c24b7026a32f045d68ef0ad11adecb

Analysis

max time kernel
150s
max time network
29s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
16/03/2023, 21:41

Target

data.win
Size

213KB
MD5

12911785675d69e223b125765bd2a652
SHA1

059a418a0c52c4286fad488476c042a0ecae0e99
SHA256

ad4631a761a2902020333b6d6d7418d82b246d7b78f95893216e1b2cd918f839
SHA512

bdd2c4ed61a2a1f254cd6f54a7cdc3c5e83c479fbf1572c2cdcc5e2d5b53bdab393440770f7f456200f667ff27964b16b9cb21c829f2d159bc7b8c8977a3f4e1
SSDEEP

6144:Gr9HQVRQzx85GsOle1VT9wPWEZKWL9unD/m4CXC:eQVRQzxEyoh9Yx5unjmO

Score

3^/10

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

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\.win	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\win_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\win_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\win_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\win_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\.win\ = "win_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\win_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\win_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1336 wrote to memory of 1732	1336	cmd.exe	28
PID 1336 wrote to memory of 1732	1336	cmd.exe	28
PID 1336 wrote to memory of 1732	1336	cmd.exe	28
PID 1732 wrote to memory of 528	1732	rundll32.exe	29
PID 1732 wrote to memory of 528	1732	rundll32.exe	29
PID 1732 wrote to memory of 528	1732	rundll32.exe	29
PID 1732 wrote to memory of 528	1732	rundll32.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\data.win
1⤵
- Suspicious use of WriteProcessMemory
PID:1336
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\data.win
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1732
- - 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\data.win"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:528

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact