b0bb0ec5287c6f2447898eaaef4a10aadc0ccfd547c8a11e6e3b20cf56f1accb

Analysis

max time kernel
30s
max time network
33s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
31/01/2023, 22:53

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General

Target

stp11.rar
Size

19.1MB
MD5

8e7582af7d2ec50ba356f4424b4ae078
SHA1

2f2eea62ecf3a2bf45e56925d5610e6ae9c3e569
SHA256

b0bb0ec5287c6f2447898eaaef4a10aadc0ccfd547c8a11e6e3b20cf56f1accb
SHA512

350adb8b50035fe0d72e84baf208ad1b87aa8ae04e2947954b6d3226b3e316e6cffd1d7e171eebf7df20e16c68946cfd2c3f3574333a1249187902ff679c50c5
SSDEEP

393216:1XI0CAtfEZI5iTYr5Z2zR0+DlhDyBKv8/fuuXQxpo6LPE:1XyUfEZIsToktbyBKUOXo6L8

Score

3^/10

Malware Config

Signatures

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-1-5-21-1214520366-621468234-4062160515-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
904	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2024 wrote to memory of 904	2024	cmd.exe	29
PID 2024 wrote to memory of 904	2024	cmd.exe	29
PID 2024 wrote to memory of 904	2024	cmd.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\stp11.rar
1⤵
- Suspicious use of WriteProcessMemory
PID:2024
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\stp11.rar
  2⤵
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  PID:904

Network

MITRE ATT&CK Enterprise v6

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

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Downloads

memory/2024-54-0x000007FEFBA81000-0x000007FEFBA83000-memory.dmp

Filesize
8KB

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