357fa83576ea6b70d17a9a22c049065817b89edad52a7a4cdcb4d2e9e0f9a0e0

Analysis

max time kernel
1590s
max time network
1594s
platform
windows7_x64
resource
win7-20230220-es
resource tags

arch:x64arch:x86image:win7-20230220-eslocale:es-esos:windows7-x64systemwindows
submitted
02-04-2023 17:19

Target

Newest_Setup_2023_As_PassKey.rar
Size

17.0MB
MD5

ea179d1c184f1e06ecdf6108d830e433
SHA1

b37571ad67cb43ccc1636405c79038c2bd1a4278
SHA256

00ff2c14c57fb9bfdf0a25f6c77195f3d8a61227388aca640586d00753a7acea
SHA512

3f376e5b54fcc465dad677012a40bbeb75096698cadeba4966bf0fcc94330c9aae3d14d235c536b83590d0d9fadf2f22a74e7c50b3694e88b9c1168489945fd0
SSDEEP

393216:tVPeIaw7r0sXdzF6ANGfx4NmD8xo4rKAf9d92aMkOJSfa8TfZ77M3:tVPe9w7r0str3Nc8WmZcaPODAfZ772

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 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
640	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 640	1976	cmd.exe	29
PID 1976 wrote to memory of 640	1976	cmd.exe	29
PID 1976 wrote to memory of 640	1976	cmd.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Newest_Setup_2023_As_PassKey.rar
1⤵
- Suspicious use of WriteProcessMemory
PID:1976
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Newest_Setup_2023_As_PassKey.rar
  2⤵
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  PID:640

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact