4cb9ad14ef79564bf39906905c503294cd7c564bdccc824037c7b2a3886089fe

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
08/06/2024, 02:53

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General

Target

2024-06-08_55ceb264a4c7eff4a4dd30bfc0b7bf85_cryptolocker.exe
Size

56KB
MD5

55ceb264a4c7eff4a4dd30bfc0b7bf85
SHA1

7b13f9aec1c1a9cbe998dee5f45807cb243cbb2e
SHA256

4cb9ad14ef79564bf39906905c503294cd7c564bdccc824037c7b2a3886089fe
SHA512

eec67dbc9ea254ba0a1b8c5c820df9865b325ce3fdcf53d855124c111a0fea371ef612a531ca5b458f8c9bda638101d5a02c7f856a896d5b998b84c359e4d2a1
SSDEEP

768:b7o/2n1TCraU6GD1a4Xcn62tH/1/Lp17zJIfeVEuUr6Wxc:bc/y2lm6iH/NLp17zrV98G

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001226d-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2608	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2296	2024-06-08_55ceb264a4c7eff4a4dd30bfc0b7bf85_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
2296	2024-06-08_55ceb264a4c7eff4a4dd30bfc0b7bf85_cryptolocker.exe
2608	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 2608	2296	2024-06-08_55ceb264a4c7eff4a4dd30bfc0b7bf85_cryptolocker.exe	28
PID 2296 wrote to memory of 2608	2296	2024-06-08_55ceb264a4c7eff4a4dd30bfc0b7bf85_cryptolocker.exe	28
PID 2296 wrote to memory of 2608	2296	2024-06-08_55ceb264a4c7eff4a4dd30bfc0b7bf85_cryptolocker.exe	28
PID 2296 wrote to memory of 2608	2296	2024-06-08_55ceb264a4c7eff4a4dd30bfc0b7bf85_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-08_55ceb264a4c7eff4a4dd30bfc0b7bf85_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-08_55ceb264a4c7eff4a4dd30bfc0b7bf85_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2296
- 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:2608

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
56KB

MD5
5a71cc93de3461d90879fcf30821ddd3

SHA1
286dc5372df1701a61d27bc264f9f7dd1c5a4cef

SHA256
092bc8bcb44f53a561f9c93cd0cd75005733ef5890a03bd583b869c710ff883a

SHA512
c76eb1fb254e74a9cf6d67c25b5ee7ed27ab47b605716d37bcbb5b532acb8f753699454eeabc0c678587a15212347a31a4d7b6e84e35843f0a0238afbf0d3f5a

Download Submit
memory/2296-8-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2296-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2296-0-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2608-23-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download