162462ca245d3cb3aa417c140fd1973d2d09faf9753f5ede56162408e82fa685

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05/04/2024, 19:35

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General

Target

2024-04-05_984c96f3351ec45cbe0beb7ded1ef548_cryptolocker.exe
Size

387KB
MD5

984c96f3351ec45cbe0beb7ded1ef548
SHA1

a9827e746aed208104cfe44c2caf9379aa969682
SHA256

162462ca245d3cb3aa417c140fd1973d2d09faf9753f5ede56162408e82fa685
SHA512

3c45cb35342d0ebc849e026786aa3316a2b33dc211d2196ecbdf21184a73ccce0588d68668bab70c3adc54d7f32bcf543afb7ea71650686c07a832d73028f25c
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXn:nnOflT/ZFIjBz3xjTxynGUOUhXn

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224f-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1836	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2528	2024-04-05_984c96f3351ec45cbe0beb7ded1ef548_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 2528 wrote to memory of 1836	2528	2024-04-05_984c96f3351ec45cbe0beb7ded1ef548_cryptolocker.exe	28
PID 2528 wrote to memory of 1836	2528	2024-04-05_984c96f3351ec45cbe0beb7ded1ef548_cryptolocker.exe	28
PID 2528 wrote to memory of 1836	2528	2024-04-05_984c96f3351ec45cbe0beb7ded1ef548_cryptolocker.exe	28
PID 2528 wrote to memory of 1836	2528	2024-04-05_984c96f3351ec45cbe0beb7ded1ef548_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-05_984c96f3351ec45cbe0beb7ded1ef548_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-05_984c96f3351ec45cbe0beb7ded1ef548_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1836

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
387KB

MD5
f8da702b5ca92ea94a50261be5326e7e

SHA1
b2e17e4fa8c152b4f49092f5f4ef844e6ff77694

SHA256
cebf12bfc7c5e55fd5156c0f257a133684d589c00d0e0b82ae0960acb20a0807

SHA512
648b86ef6e4408cad318da4f49917f195b055ccd4a8a2196ad7a00f710c0b2538338f162bfae55a8c679ba1b72858409105857599e9e8030b0e022decfbc010d

Download Submit
memory/1836-15-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

Filesize
24KB

Download
memory/1836-19-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/2528-0-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/2528-2-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/2528-1-0x0000000001CF0000-0x0000000001CF6000-memory.dmp

Filesize
24KB

Download