5c1e654e451906fff72a2445100838a82b8141239b89a2052193867df253d5bb

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
28/06/2024, 15:49

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General

Target

2024-06-28_18e76735eb2846527c0984a4a5f4152d_cryptolocker.exe
Size

45KB
MD5

18e76735eb2846527c0984a4a5f4152d
SHA1

05b354da68d841f6130d258c8d0428d6ed6aa23b
SHA256

5c1e654e451906fff72a2445100838a82b8141239b89a2052193867df253d5bb
SHA512

a0b9f1726a4957af8e9eb0bb653d99c8638a81704860f710a6e7f34ddc3a8d4fe5ef5554abf51da0bfb521ca2b3184feb17b4c278fcde26d5a8cd8a9aea53180
SSDEEP

768:bao/2n1TCraU6GD1a4X1XOQ69zbjlAAX5e9zI:bF/y2lFizbR9XwzI

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000500000000b309-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2984	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
3036	2024-06-28_18e76735eb2846527c0984a4a5f4152d_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
3036	2024-06-28_18e76735eb2846527c0984a4a5f4152d_cryptolocker.exe
2984	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3036 wrote to memory of 2984	3036	2024-06-28_18e76735eb2846527c0984a4a5f4152d_cryptolocker.exe	28
PID 3036 wrote to memory of 2984	3036	2024-06-28_18e76735eb2846527c0984a4a5f4152d_cryptolocker.exe	28
PID 3036 wrote to memory of 2984	3036	2024-06-28_18e76735eb2846527c0984a4a5f4152d_cryptolocker.exe	28
PID 3036 wrote to memory of 2984	3036	2024-06-28_18e76735eb2846527c0984a4a5f4152d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-28_18e76735eb2846527c0984a4a5f4152d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-28_18e76735eb2846527c0984a4a5f4152d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3036
- 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:2984

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
46KB

MD5
084e399b231c9fbb2116f7e9a452a599

SHA1
55a7e1a317889c104bee62c8fc4fd231d85c9291

SHA256
d2c87d98f659193eb77c157f1878c52046aea7f8756befd29a05478b05b305c4

SHA512
2ec0a13312e3ecfb98e8c3c0d5b3f85cae1fef4fb27bb910bc426fae0e0140274126930e01e6f9baf252cc02086fa720773696d944ad2fa564b1d33887cee401

Download Submit
memory/2984-23-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/3036-0-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/3036-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3036-8-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download