9deb3c9c52a859d3d793284de3f6de383f07c097abf19bc82379df1ca31b6c86

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
01/06/2024, 03:53

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General

Target

2024-06-01_b7ce7f1ffc66ba2ee35d2413343609fc_cryptolocker.exe
Size

54KB
MD5

b7ce7f1ffc66ba2ee35d2413343609fc
SHA1

50b1a705b3c1fea6e3fc77a44b7f6587775fd7da
SHA256

9deb3c9c52a859d3d793284de3f6de383f07c097abf19bc82379df1ca31b6c86
SHA512

a93b9c2c7d24277cc2032494aa5dc8849d4d26c06a9ce8813fd3c17026495ba98837467a4b39657688a3c732bbb71ec158d424e44c7ad7bacfceb4c7cf0e5137
SSDEEP

768:b7o/2n1TCraU6GD1a4Xcn62tH/1/Lp17zJIfeVEuUr6rB:bc/y2lm6iH/NLp17zrV9dB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001432c-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2180	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2336	2024-06-01_b7ce7f1ffc66ba2ee35d2413343609fc_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
2336	2024-06-01_b7ce7f1ffc66ba2ee35d2413343609fc_cryptolocker.exe
2180	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 2180	2336	2024-06-01_b7ce7f1ffc66ba2ee35d2413343609fc_cryptolocker.exe	28
PID 2336 wrote to memory of 2180	2336	2024-06-01_b7ce7f1ffc66ba2ee35d2413343609fc_cryptolocker.exe	28
PID 2336 wrote to memory of 2180	2336	2024-06-01_b7ce7f1ffc66ba2ee35d2413343609fc_cryptolocker.exe	28
PID 2336 wrote to memory of 2180	2336	2024-06-01_b7ce7f1ffc66ba2ee35d2413343609fc_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-01_b7ce7f1ffc66ba2ee35d2413343609fc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-01_b7ce7f1ffc66ba2ee35d2413343609fc_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2336
- 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:2180

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
54KB

MD5
f34b067099da5fd63c803a44602d0cbf

SHA1
7f0bca70c45ca6083b4912dd8aa4e3d670d380b6

SHA256
e043d72c624878ceb5d0f98b399695249b52140a6792c2df0a5a01e696d1691d

SHA512
7aea4768dbbc0f2bf0903a81830c777dd592f4d76f7fcfe9dca4814115d597f27ebf5f062a15eaf153d7208e19ffdcc655d9eece4e4b1e16c277aa06e654faae

Download Submit
memory/2180-23-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download
memory/2336-0-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2336-8-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2336-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download