6ae232f6f65e08b34e9f51df4a9840a1bcca00088c5b9b53ece7de7d87f59498

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27/04/2024, 19:00

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General

Target

2024-04-27_defd826f191dc68dbab042e56ce58561_cryptolocker.exe
Size

63KB
MD5

defd826f191dc68dbab042e56ce58561
SHA1

dcd453912ba7f112b6b0279c21cc92f5e7dd0556
SHA256

6ae232f6f65e08b34e9f51df4a9840a1bcca00088c5b9b53ece7de7d87f59498
SHA512

02e48e075b24523169d80042bb9e6d679d03deeec4238ee73d3d356cd3ded9189eeba0534dd4ccc0ec4782e122ea314d648c4469065f2a3b58fb90d1b0ec5b48
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHax6:btng54SMLr+/AO/kIhfoKMHdP6

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014230-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2972	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1888	2024-04-27_defd826f191dc68dbab042e56ce58561_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1888	2024-04-27_defd826f191dc68dbab042e56ce58561_cryptolocker.exe
2972	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1888 wrote to memory of 2972	1888	2024-04-27_defd826f191dc68dbab042e56ce58561_cryptolocker.exe	28
PID 1888 wrote to memory of 2972	1888	2024-04-27_defd826f191dc68dbab042e56ce58561_cryptolocker.exe	28
PID 1888 wrote to memory of 2972	1888	2024-04-27_defd826f191dc68dbab042e56ce58561_cryptolocker.exe	28
PID 1888 wrote to memory of 2972	1888	2024-04-27_defd826f191dc68dbab042e56ce58561_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-27_defd826f191dc68dbab042e56ce58561_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-27_defd826f191dc68dbab042e56ce58561_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1888
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2972

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

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Downloads

\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
63KB

MD5
711438140ed3b9b64b7b95b412c72a32

SHA1
ff459b9cf257ac5876941d4c363fbc73e9fc7634

SHA256
7fc94ba9e0fd145d8536ac22d3105cfc0f196fd32794b7517da69366b609d9f1

SHA512
faa1f29399a7dd7929af1084d147f0a43a503d73b35f6a39f7892672814cdf725c8fbbc9d20fc7a2413034141a4e3ede049304e8ffd292a6a19105ad7ef3f4c8

Download Submit
memory/1888-8-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download
memory/1888-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1888-0-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download
memory/2972-23-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download