7980ada38ca1bc359333373fa86a1245d7e8c19c35c882ed0c69d2eaee41ebad

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
14/03/2024, 13:37

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General

Target

2024-03-14_523e0250a4bf004c9e1ff63c59c8eefa_cryptolocker.exe
Size

34KB
MD5

523e0250a4bf004c9e1ff63c59c8eefa
SHA1

8ff992b97c07badec386d9e22b9352c19d2f2f2a
SHA256

7980ada38ca1bc359333373fa86a1245d7e8c19c35c882ed0c69d2eaee41ebad
SHA512

725313e5440ab1a7e31392f3ab0cf40cdca35044a0e7373b9f12e8ebbff5beebb8617ee25efa2af0e0c2456d33f449ae3cc9c5750a467027640d58434cf8b919
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9/B1RwFteWcdaJ7:b7o/2n1TCraU6GD1a4Xt9bRwW9aJ7

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
2936	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
640	2024-03-14_523e0250a4bf004c9e1ff63c59c8eefa_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
640	2024-03-14_523e0250a4bf004c9e1ff63c59c8eefa_cryptolocker.exe
2936	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 640 wrote to memory of 2936	640	2024-03-14_523e0250a4bf004c9e1ff63c59c8eefa_cryptolocker.exe	28
PID 640 wrote to memory of 2936	640	2024-03-14_523e0250a4bf004c9e1ff63c59c8eefa_cryptolocker.exe	28
PID 640 wrote to memory of 2936	640	2024-03-14_523e0250a4bf004c9e1ff63c59c8eefa_cryptolocker.exe	28
PID 640 wrote to memory of 2936	640	2024-03-14_523e0250a4bf004c9e1ff63c59c8eefa_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-14_523e0250a4bf004c9e1ff63c59c8eefa_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_523e0250a4bf004c9e1ff63c59c8eefa_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:640
- 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:2936

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
34KB

MD5
3193a9b821c1daac2a6a9f7c1a2318e6

SHA1
8a3e43ba731f70199b202258bbe396c10315464e

SHA256
b97a96d35ed8fbb34d56930ccb338397666df5ee11306ef3e9b6d76a5711e90e

SHA512
7d8949184380d68da81d6f12ba5e68cfb90c42a0ed151f8eda2c6cbc5ca93d8744a61fb4d76b7d40ec1ae5934ebfe27af2e8830fc5b2472887a777c9d10bb4ae

Download Submit
memory/640-0-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/640-2-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/640-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2936-19-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download