1e4e508475486194728e0017d372c08910d54bb7a4fac63caab6cada91c7d5c4

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
02/06/2024, 02:27

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General

Target

2024-06-02_75756e0b12abc1b8d11ce801e0aa7373_cryptolocker.exe
Size

63KB
MD5

75756e0b12abc1b8d11ce801e0aa7373
SHA1

a09cd7221242343487ddb84932cb8b3ed76a7bf4
SHA256

1e4e508475486194728e0017d372c08910d54bb7a4fac63caab6cada91c7d5c4
SHA512

5c7c6a3cbb5b6e1ccd3ff3aa8e40282097d5d81808d3a598fd9159a42e9b9bb66f161cd3e8964d4e0397115dc947e431bd156d39e9edcb647fed9ebf306d9b58
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHZnF7HG:btng54SMLr+/AO/kIhfoKMHdaE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000e000000015a98-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2812	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2872	2024-06-02_75756e0b12abc1b8d11ce801e0aa7373_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
2872	2024-06-02_75756e0b12abc1b8d11ce801e0aa7373_cryptolocker.exe
2812	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 2812	2872	2024-06-02_75756e0b12abc1b8d11ce801e0aa7373_cryptolocker.exe	28
PID 2872 wrote to memory of 2812	2872	2024-06-02_75756e0b12abc1b8d11ce801e0aa7373_cryptolocker.exe	28
PID 2872 wrote to memory of 2812	2872	2024-06-02_75756e0b12abc1b8d11ce801e0aa7373_cryptolocker.exe	28
PID 2872 wrote to memory of 2812	2872	2024-06-02_75756e0b12abc1b8d11ce801e0aa7373_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-02_75756e0b12abc1b8d11ce801e0aa7373_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-02_75756e0b12abc1b8d11ce801e0aa7373_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2872
- 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:2812

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
073bcbdbbc355cc4fe4a9fe08b98aeb5

SHA1
e0f868460ff69bc4395bc510a39826e5b7f773b7

SHA256
db4b053afb6dbccfc95a8755dc24f5f3191b3f04833ccc3c9e870bd092ae713a

SHA512
67e69bcc15a472150e96f0f52f630cf4e11109b097fb8c040986661420723bd939a67d7fbae00ca7a9cefca6449319520e8f18e3a88871fbaaa0bb903a56360a

Download Submit
memory/2812-23-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2872-8-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2872-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2872-0-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download