60258b124fa7cfb450e248c65e3da4f793255e40be4f7cdfca6fd37c081e1993

Analysis

max time kernel
88s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
22/01/2024, 15:29

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-01-22_704a0b7b057ee3ba6dae8feba437d3a2_cryptolocker.exe
Size

42KB
MD5

704a0b7b057ee3ba6dae8feba437d3a2
SHA1

4ee2d4bdb2f308c6f442a49fbfb4067b9480d23c
SHA256

60258b124fa7cfb450e248c65e3da4f793255e40be4f7cdfca6fd37c081e1993
SHA512

0c5aa9878ace0fff8fb2b47ff46ee985ec8d90e420f0b1283b73e25ef9588aa978f75a3b9b47e3ce0d526fff7222ec2ef9cf5161d88603159d576bcab27ddf45
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGpebVIYLHA3KxV:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xc

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023212-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023212-12.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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-01-22_704a0b7b057ee3ba6dae8feba437d3a2_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
4332	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 3776 wrote to memory of 4332	3776	2024-01-22_704a0b7b057ee3ba6dae8feba437d3a2_cryptolocker.exe	86
PID 3776 wrote to memory of 4332	3776	2024-01-22_704a0b7b057ee3ba6dae8feba437d3a2_cryptolocker.exe	86
PID 3776 wrote to memory of 4332	3776	2024-01-22_704a0b7b057ee3ba6dae8feba437d3a2_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-01-22_704a0b7b057ee3ba6dae8feba437d3a2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-22_704a0b7b057ee3ba6dae8feba437d3a2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3776
- 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:4332

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
42KB

MD5
31e25e72c41c3109230064b6e0ab92fe

SHA1
0b6cb603b9054cc98a8873debac2ae04a2ad13f6

SHA256
5991c6d180c0160d0bba944df86c5a805d1147e744cb387cba0960f2cbfae067

SHA512
7a3db095ca1ac49b72819c675ba09da1e11fe95a535f987600ea80f7c44c20ad95dca69fe8ce395c5f252ea4735b67e94c465a04a10163e02fd5ca66dd4e32e0

Download Submit
memory/3776-0-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/3776-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3776-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/4332-21-0x00000000020C0000-0x00000000020C6000-memory.dmp

Filesize
24KB

Download