1911915ebbe4694fc6fd9001460e072ff9f9187bf9d15b4f5d8ce888114b237d

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
07/03/2024, 23:33

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General

Target

2024-03-07_8c2b760aeb4e7fb258a045b60b4d8152_cryptolocker.exe
Size

38KB
MD5

8c2b760aeb4e7fb258a045b60b4d8152
SHA1

5c8607badfa9856ca9ea9ab2ef09b0f72384e90d
SHA256

1911915ebbe4694fc6fd9001460e072ff9f9187bf9d15b4f5d8ce888114b237d
SHA512

7e8005fd98f1a23295ee315b49222577e0b2154247fa34cbfb39015391c88ea7291384bfe65d380b242d5c727218f302761adadd55688bd2d0d8feaf90ffde03
SSDEEP

384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf0w3sp8u5cZnfXsTV2:bgX4zYcgTEu6QOaryfjqDDw3sCu5mXqI

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001222a-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3060	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2832	2024-03-07_8c2b760aeb4e7fb258a045b60b4d8152_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 2832 wrote to memory of 3060	2832	2024-03-07_8c2b760aeb4e7fb258a045b60b4d8152_cryptolocker.exe	28
PID 2832 wrote to memory of 3060	2832	2024-03-07_8c2b760aeb4e7fb258a045b60b4d8152_cryptolocker.exe	28
PID 2832 wrote to memory of 3060	2832	2024-03-07_8c2b760aeb4e7fb258a045b60b4d8152_cryptolocker.exe	28
PID 2832 wrote to memory of 3060	2832	2024-03-07_8c2b760aeb4e7fb258a045b60b4d8152_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-07_8c2b760aeb4e7fb258a045b60b4d8152_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-07_8c2b760aeb4e7fb258a045b60b4d8152_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2832
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3060

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
38KB

MD5
59185e301c20ce7d64683f2b654b9886

SHA1
fc975a489c3ce74cb45727110cbcd8951ad6b4ac

SHA256
2f6f5bc40d8c013add88bb97a7a796d65091cf39ce4ca3d502ab3c71dadebdbf

SHA512
48733dd322eafd064879c1418c51bde91b97a17e195d3bf7054f031fd7ce0cc86841169d78eeb59502f8df5a8d014bf72b5556cb468ddc9491ace106fa3b5015

Download Submit
memory/2832-0-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2832-1-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2832-8-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/3060-15-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/3060-17-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download