9b30bb835388d6ee6b9bc6b567bcc9231dceb9881a6cc145f895e4f62b6362b4

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
22/01/2024, 18:39

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General

Target

2024-01-22_a48f9cf8456d91b6f27813913ad2f543_cryptolocker.exe
Size

35KB
MD5

a48f9cf8456d91b6f27813913ad2f543
SHA1

50602a1c708b234634ba23e9633a2cdfd61f250a
SHA256

9b30bb835388d6ee6b9bc6b567bcc9231dceb9881a6cc145f895e4f62b6362b4
SHA512

5587757456416bec71c54d4bc9626078bc5c029fa3b745a3e572950f872aa8709d03c1cbf8c3771d235bb90707c4f6563574dae2a6933c3f4044fbb86e610686
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPrz:YGzl5wjRQBBOsP1QMOtEvwDpjgarMz

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2356-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000014826-11.dat	CryptoLocker_rule2
behavioral1/memory/2356-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3012-20-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2356-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000014826-11.dat	CryptoLocker_set1
behavioral1/memory/2356-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3012-20-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3012	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2356	2024-01-22_a48f9cf8456d91b6f27813913ad2f543_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 2356 wrote to memory of 3012	2356	2024-01-22_a48f9cf8456d91b6f27813913ad2f543_cryptolocker.exe	28
PID 2356 wrote to memory of 3012	2356	2024-01-22_a48f9cf8456d91b6f27813913ad2f543_cryptolocker.exe	28
PID 2356 wrote to memory of 3012	2356	2024-01-22_a48f9cf8456d91b6f27813913ad2f543_cryptolocker.exe	28
PID 2356 wrote to memory of 3012	2356	2024-01-22_a48f9cf8456d91b6f27813913ad2f543_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-22_a48f9cf8456d91b6f27813913ad2f543_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-22_a48f9cf8456d91b6f27813913ad2f543_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2356
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3012

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
35KB

MD5
6d7fd782f84123ab4bbea2e3a5d5a764

SHA1
f0369ec8ff53a39ab38b2772e03231c4f9aa1ae0

SHA256
a97f7f1adaf06f808c8028f9dd10b54b68c31abac5f12d904a0b695e80200d4d

SHA512
434ccf1a5c7aba0b960a8fa2ad2ee65d82861838ec1bef1010036da1cb2c9e53abd752f935e163cc83c40a75d41e3451d0b204f877148610fb6da94b07b9bcf4

Download Submit
memory/2356-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2356-1-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2356-2-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2356-9-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2356-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3012-17-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/3012-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3012-20-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download