4c00478e1367e71a820601695114468ed948a864883cdb9de746a0a5f28608f8

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
20/02/2024, 03:38

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General

Target

2024-02-20_a4fc07f82e9f198c794681a7e096437c_cryptolocker.exe
Size

31KB
MD5

a4fc07f82e9f198c794681a7e096437c
SHA1

b716fe02fc1fc77fffca0f2ce95a7b3f70eb2faf
SHA256

4c00478e1367e71a820601695114468ed948a864883cdb9de746a0a5f28608f8
SHA512

44f98bba4513160d24e52fe2ec8866f30f28eb369b5193b0e1bebc63c2dee7a6261073cb09205b67701e969c0ef96d85730d17c57fdb3725f1a1fcfef3065351
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUr766SJ/Tl+bltoGkg:bA74zYcgT/Ekd0ryfjQRSlwltYg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001232d-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2964	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2556	2024-02-20_a4fc07f82e9f198c794681a7e096437c_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 2556 wrote to memory of 2964	2556	2024-02-20_a4fc07f82e9f198c794681a7e096437c_cryptolocker.exe	28
PID 2556 wrote to memory of 2964	2556	2024-02-20_a4fc07f82e9f198c794681a7e096437c_cryptolocker.exe	28
PID 2556 wrote to memory of 2964	2556	2024-02-20_a4fc07f82e9f198c794681a7e096437c_cryptolocker.exe	28
PID 2556 wrote to memory of 2964	2556	2024-02-20_a4fc07f82e9f198c794681a7e096437c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-20_a4fc07f82e9f198c794681a7e096437c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_a4fc07f82e9f198c794681a7e096437c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2556
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2964

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\hasfj.exe

Filesize
31KB

MD5
bfa6c9cb207497fff508eec2cae3050d

SHA1
e04636428ec877bf73c8b9c9011ea5573fc4cf28

SHA256
3240210977a839d54d2affdb8317b95d07c64d7276058441cfc282df221042f5

SHA512
5785c8498a3b13bd28e6e0ba0a9b089247e5663822f8247f7817751146678c940947f86dba81ca3b59e04403160f6c351c7cfccb24fcf2d99c071ebfc091c417

Download Submit
memory/2556-0-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/2556-2-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2556-1-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/2964-15-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/2964-22-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download