d74a9dbada5add1402922ade29c1e7a7f40b01f93971aaa3273af0ad77e1f546

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 19:24

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General

Target

2024-01-25_21d6c7948a19304067fedc4d95ac3f7c_cryptolocker.exe
Size

34KB
MD5

21d6c7948a19304067fedc4d95ac3f7c
SHA1

c7c3f0e71cff186ac19336eb92fd7cd37985c9dc
SHA256

d74a9dbada5add1402922ade29c1e7a7f40b01f93971aaa3273af0ad77e1f546
SHA512

2b09cfef128eba7deb2cbb110b748e0ead999af5bc46f66b6dbbcb6df25c6f3bb11177ae9d80e8749c102454cd1713852e7c22e917a75ede8065c5914a671020
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUqMV6U8zKvGaLLAd:bA74zYcgT/Ekd0ryfj86U8zbCAd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224c-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2364	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1876	2024-01-25_21d6c7948a19304067fedc4d95ac3f7c_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 1876 wrote to memory of 2364	1876	2024-01-25_21d6c7948a19304067fedc4d95ac3f7c_cryptolocker.exe	28
PID 1876 wrote to memory of 2364	1876	2024-01-25_21d6c7948a19304067fedc4d95ac3f7c_cryptolocker.exe	28
PID 1876 wrote to memory of 2364	1876	2024-01-25_21d6c7948a19304067fedc4d95ac3f7c_cryptolocker.exe	28
PID 1876 wrote to memory of 2364	1876	2024-01-25_21d6c7948a19304067fedc4d95ac3f7c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-25_21d6c7948a19304067fedc4d95ac3f7c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_21d6c7948a19304067fedc4d95ac3f7c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1876
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2364

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
34KB

MD5
93e95018e0d1389839a78cbbdf83595b

SHA1
81ef7c91ef3059ce86faebe369c0d5f140f962cd

SHA256
45dc58c1f665578d975d9ca71a91f6ceb5448c5fbe28465c3b13281aca564569

SHA512
3f9fea8a643fc90f47d6788ecc4608e60ea07652d96cc31d8dd2b82d66cd24b1dc65cbb6dc3c31fe1b43589425b90a2138ef96cfcda8b8bc0b4217c8925eab54

Download Submit
memory/1876-0-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1876-1-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/1876-3-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2364-15-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2364-22-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download