469875aa7468ac5c1804e5fdd6bf44da8434c819e51b9e19ea77d48ffb97c22d

Analysis

max time kernel
147s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
12/03/2024, 03:43

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General

Target

2024-03-12_961c3c25f39d50686339cfdf4cab6bd8_cryptolocker.exe
Size

63KB
MD5

961c3c25f39d50686339cfdf4cab6bd8
SHA1

e93ae0365224db1ad82c90d3f2d35f2b9e1aeee6
SHA256

469875aa7468ac5c1804e5fdd6bf44da8434c819e51b9e19ea77d48ffb97c22d
SHA512

b496c4e88034ed6d3e56f4fa27b67a8731e755bdd9b96a31fbd5f66bb15c2de06960801b4891331fff0accd4ee36bce8dd366d4462361e502f709f9fcbb0bcfa
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF299d4:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7W

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000122fc-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000122fc-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2032	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1244	2024-03-12_961c3c25f39d50686339cfdf4cab6bd8_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
1244	2024-03-12_961c3c25f39d50686339cfdf4cab6bd8_cryptolocker.exe
2032	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1244 wrote to memory of 2032	1244	2024-03-12_961c3c25f39d50686339cfdf4cab6bd8_cryptolocker.exe	28
PID 1244 wrote to memory of 2032	1244	2024-03-12_961c3c25f39d50686339cfdf4cab6bd8_cryptolocker.exe	28
PID 1244 wrote to memory of 2032	1244	2024-03-12_961c3c25f39d50686339cfdf4cab6bd8_cryptolocker.exe	28
PID 1244 wrote to memory of 2032	1244	2024-03-12_961c3c25f39d50686339cfdf4cab6bd8_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-12_961c3c25f39d50686339cfdf4cab6bd8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_961c3c25f39d50686339cfdf4cab6bd8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1244
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2032

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\hurok.exe

Filesize
63KB

MD5
f995a4dc915b7f5ef8f6367db8782c6d

SHA1
68dfc6fa7cef7b504739be92f63d477a19ba61bd

SHA256
9fe75f9a828a11b35d513a288cedc5657b5c41faf92b9cafe111f853f80d932a

SHA512
e7b798cc99a0e7248539673afe8ff6025ce8c118e42f81959109d7a6aa98ab03f69acf31dc2c6f6124a0ec201f290f4d346bef88627e0a3d88cdd69bd53907f1

Download Submit
memory/1244-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1244-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1244-3-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2032-17-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download