c3c1e712df1d5f74de1a1e243b3b087830adbb602e37c5e811118f04926bfbf2

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-04-2024 07:43

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General

Target

2024-04-22_51c89f44030a3162a6963ff8cbae1cc9_cryptolocker.exe
Size

51KB
MD5

51c89f44030a3162a6963ff8cbae1cc9
SHA1

efd2e2575971bdd4bbf4c98c5765a7b9edd735dc
SHA256

c3c1e712df1d5f74de1a1e243b3b087830adbb602e37c5e811118f04926bfbf2
SHA512

977d33aaf311b77856a541d860fda8fadf5854cd86bfb0d865cb3fe438906c7d6f72a5ca5f49447465b75c59047f67c18f0bd4354e4399db780289bfb3d6d2a1
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vxb:X6QFElP6n+gJBMOtEvwDpjBtExb

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224c-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224c-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2516	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1524	2024-04-22_51c89f44030a3162a6963ff8cbae1cc9_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1524 wrote to memory of 2516	1524	2024-04-22_51c89f44030a3162a6963ff8cbae1cc9_cryptolocker.exe	28
PID 1524 wrote to memory of 2516	1524	2024-04-22_51c89f44030a3162a6963ff8cbae1cc9_cryptolocker.exe	28
PID 1524 wrote to memory of 2516	1524	2024-04-22_51c89f44030a3162a6963ff8cbae1cc9_cryptolocker.exe	28
PID 1524 wrote to memory of 2516	1524	2024-04-22_51c89f44030a3162a6963ff8cbae1cc9_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-22_51c89f44030a3162a6963ff8cbae1cc9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-22_51c89f44030a3162a6963ff8cbae1cc9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1524
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2516

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\asih.exe

Filesize
51KB

MD5
7530cffa818786c3dae5113ed842640d

SHA1
de7d1c563b02903a9f2de085cdb4f80b657927a5

SHA256
23fcb4e8e1665c8a8860d80c25cc616c366683a21603205a13cf27d759b614d0

SHA512
af6d59113acd75b47686397623ceaf12f721f6d804a8297593957f67c5d9248d4ce6e3477fa5b9dfa77f02ffcc0f8f7d576d078145baadf39e2f7267dd83334d

Download Submit
memory/1524-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1524-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1524-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2516-17-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2516-15-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download