84bc53327f283d433bfcf09cbb6b0920ed37904db033e2bf93cf5eb0ae9d0fa8

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22/02/2024, 21:31

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-02-22_6ed24be76c9d5610ca21402ac03ab81d_cryptolocker.exe
Size

35KB
MD5

6ed24be76c9d5610ca21402ac03ab81d
SHA1

56ccb04aef5ffce3bfafd8f2766e9c059ba12ed0
SHA256

84bc53327f283d433bfcf09cbb6b0920ed37904db033e2bf93cf5eb0ae9d0fa8
SHA512

6cc14b642cf11beb4c5fa9d5b513d6513001df83e2669d05324b6c4fb060c8b4040b42d2c6dd684df68228b967940bedf4c84237c0ae065a50e4e3e370f24753
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGp/YIm7wm05:o1KhxqwtdgI2MyzNORQtOflIwoHNV2X7

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001224e-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001224e-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3012	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
3000	2024-02-22_6ed24be76c9d5610ca21402ac03ab81d_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
3000	2024-02-22_6ed24be76c9d5610ca21402ac03ab81d_cryptolocker.exe
3012	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3000 wrote to memory of 3012	3000	2024-02-22_6ed24be76c9d5610ca21402ac03ab81d_cryptolocker.exe	28
PID 3000 wrote to memory of 3012	3000	2024-02-22_6ed24be76c9d5610ca21402ac03ab81d_cryptolocker.exe	28
PID 3000 wrote to memory of 3012	3000	2024-02-22_6ed24be76c9d5610ca21402ac03ab81d_cryptolocker.exe	28
PID 3000 wrote to memory of 3012	3000	2024-02-22_6ed24be76c9d5610ca21402ac03ab81d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-22_6ed24be76c9d5610ca21402ac03ab81d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_6ed24be76c9d5610ca21402ac03ab81d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3000
- 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:3012

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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
35KB

MD5
aeda62919d8bbf90ac90c56ba56e3332

SHA1
a0cac073c025ea29471813896ada324d5272927a

SHA256
f990e551c9fb0ac94034eba744ea1d8c5ddd4a4d404f449161fae0a51d4ea201

SHA512
f1230ed38549151e0a7a7ce3495aae1b0edc791fe90350c53f1f01cdcfad842b2698729394cefc7e03e265b9c6c201a2ebd15d66532faef931d08c08932bcc7e

Download Submit
memory/3000-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/3000-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3000-5-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/3012-17-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download