e64af25ed3ba04835c9945ded0de838be861e458fc2d754b1230c949b574e979

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
19/04/2024, 14:59

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General

Target

2024-04-19_f64d59276253d5b0cb14c5fc5f20324f_cryptolocker.exe
Size

36KB
MD5

f64d59276253d5b0cb14c5fc5f20324f
SHA1

353a98582b8c48ed77b8184bf1fb870b5f79b733
SHA256

e64af25ed3ba04835c9945ded0de838be861e458fc2d754b1230c949b574e979
SHA512

5ba3d355d6da2108ba6d41c0d58ec98d66d92bc0334a46ef878e9a1bf119ac36dd1c38460b47f27a646a464d05b21200ba4dfb914f183d1547662ba89d508453
SSDEEP

768:b7o/2n1TCraU6GD1a4Xt9bRU6zA6o36mS:bc/y2lLRU6zA6qS

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
2292	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2004	2024-04-19_f64d59276253d5b0cb14c5fc5f20324f_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
2004	2024-04-19_f64d59276253d5b0cb14c5fc5f20324f_cryptolocker.exe
2292	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 2292	2004	2024-04-19_f64d59276253d5b0cb14c5fc5f20324f_cryptolocker.exe	28
PID 2004 wrote to memory of 2292	2004	2024-04-19_f64d59276253d5b0cb14c5fc5f20324f_cryptolocker.exe	28
PID 2004 wrote to memory of 2292	2004	2024-04-19_f64d59276253d5b0cb14c5fc5f20324f_cryptolocker.exe	28
PID 2004 wrote to memory of 2292	2004	2024-04-19_f64d59276253d5b0cb14c5fc5f20324f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-19_f64d59276253d5b0cb14c5fc5f20324f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-19_f64d59276253d5b0cb14c5fc5f20324f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2004
- 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:2292

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
36KB

MD5
5ab83700d4905c32d0b09f741cf27484

SHA1
7d2e0f75a53cc4dc6b746b8977769e3b4124e469

SHA256
16a7c2792ce4afcb60de71ebc5746f3ae6d87f5efdaf8eedfe064d841b62e96f

SHA512
8966b5ae26c6d00fc007d6b81e9017693648fbf73c913ddf6e2cb31be2c27b0c614536f6570f5048c049318c5618e4b9767930160dec54e9417d9418d3fd4384

Download Submit
memory/2004-0-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2004-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2004-8-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2292-18-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download