f3e3e2d313cea860b997da70586e1c3f324c123db59d99469cd2d5a0014ff4a4

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
26/01/2024, 20:30

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General

Target

2024-01-26_5f054f074cf06cb9b5194c545394d6a5_cryptolocker.exe
Size

31KB
MD5

5f054f074cf06cb9b5194c545394d6a5
SHA1

e382182a0f025879c07e4cc5690496c9f7cd03bd
SHA256

f3e3e2d313cea860b997da70586e1c3f324c123db59d99469cd2d5a0014ff4a4
SHA512

4155c8b5492fb54ac9d5af6ba522fcf6849d08491fb8df4d1bad61cdcc972e96d2da101ae0a0da20703c38725fd743cee1dd9e04a52b0310a65a06259b5c3b57
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9/B1Rv3b:b7o/2n1TCraU6GD1a4Xt9bRvr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001312a-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3020	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2332	2024-01-26_5f054f074cf06cb9b5194c545394d6a5_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2332	2024-01-26_5f054f074cf06cb9b5194c545394d6a5_cryptolocker.exe
3020	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 3020	2332	2024-01-26_5f054f074cf06cb9b5194c545394d6a5_cryptolocker.exe	28
PID 2332 wrote to memory of 3020	2332	2024-01-26_5f054f074cf06cb9b5194c545394d6a5_cryptolocker.exe	28
PID 2332 wrote to memory of 3020	2332	2024-01-26_5f054f074cf06cb9b5194c545394d6a5_cryptolocker.exe	28
PID 2332 wrote to memory of 3020	2332	2024-01-26_5f054f074cf06cb9b5194c545394d6a5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-26_5f054f074cf06cb9b5194c545394d6a5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_5f054f074cf06cb9b5194c545394d6a5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2332
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:3020

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\rewok.exe

Filesize
32KB

MD5
09562a001394ad8baa39a38208522741

SHA1
7199633332119db93927ee1ba7003a00c81c10f9

SHA256
3c0b9f1a70fa72a29720cbbd26d8935e89f02386703351f93a02b1435148f335

SHA512
5c5e383ac2cd742bc48e82ff8146d69c9bcd2b69c1be69d9b5813b76ac7b0d09a057bb25ee93e50bd117a3ff5b9a09aebaf5896082088cfeaa152de01ef64851

Download Submit
memory/2332-0-0x0000000002920000-0x0000000002926000-memory.dmp

Filesize
24KB

Download
memory/2332-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2332-8-0x0000000002920000-0x0000000002926000-memory.dmp

Filesize
24KB

Download
memory/3020-23-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download