56b4bca08780ab459d30be14764b6c45fcad2c276b369c5badbcbc72452722b4

Analysis

max time kernel
93s
max time network
131s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
11-05-2024 04:44

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-11_60bcca21fe48d22e343f81b5b6af3ffd_cryptolocker.exe
Size

52KB
MD5

60bcca21fe48d22e343f81b5b6af3ffd
SHA1

889bed34a8e7055334bee2e072c9968ccd83af12
SHA256

56b4bca08780ab459d30be14764b6c45fcad2c276b369c5badbcbc72452722b4
SHA512

03dc2ecd309ec8910e0f26fba47a6889769e77b79a7cbdd68635c99556e55b13b8d27943e754bdc55bb04b0506dad5e2217eb7aabb710294bb52b4298c7edd0c
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAI4kF:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002328e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002328e-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-05-11_60bcca21fe48d22e343f81b5b6af3ffd_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
1656	hurok.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 1656	2972	2024-05-11_60bcca21fe48d22e343f81b5b6af3ffd_cryptolocker.exe	82
PID 2972 wrote to memory of 1656	2972	2024-05-11_60bcca21fe48d22e343f81b5b6af3ffd_cryptolocker.exe	82
PID 2972 wrote to memory of 1656	2972	2024-05-11_60bcca21fe48d22e343f81b5b6af3ffd_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-11_60bcca21fe48d22e343f81b5b6af3ffd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-11_60bcca21fe48d22e343f81b5b6af3ffd_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2972
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:1656

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
52KB

MD5
6e82eda0a6fb8e9fc33ec5b501c6156a

SHA1
d6fb9c5928c82eb28a67285a4e7346d990f7d7a0

SHA256
884e2a3eb76c264b8559ff128a143339bfb7e64960df0301aa4a758ffff64567

SHA512
f16a440df3e382b4141cdbe32fb8edf86a8270d64db7721ce0e920f764cea2867e5284f17f381ffd5d8da273099c3aa27ddd4d4d7a2a589e9da3eb6faef0a1bf

Download Submit
memory/1656-25-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2972-0-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/2972-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2972-8-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download