1dda5f73300e1118b8767b99cd5c3536d32b4c6c5274adac5c6d1c075c3c0776

Analysis

max time kernel
141s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09-03-2024 21:44

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-03-09_93816c0ca69a14e9463e6c97023de6fc_cryptolocker.exe
Size

63KB
MD5

93816c0ca69a14e9463e6c97023de6fc
SHA1

1b5da4f0b31ea70b52727216f4b41a56d272291e
SHA256

1dda5f73300e1118b8767b99cd5c3536d32b4c6c5274adac5c6d1c075c3c0776
SHA512

eba2215c2af9a7f7bad137019eae51d21b77e1d14dda4a0fec81474a1fccefd38e76afd346f5db7efbd6a0ffc5d66969d378cc35723a2a0b8eacfc08a97ef4ac
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293B8U:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7h

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-12.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-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	2024-03-09_93816c0ca69a14e9463e6c97023de6fc_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
4756	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 1196 wrote to memory of 4756	1196	2024-03-09_93816c0ca69a14e9463e6c97023de6fc_cryptolocker.exe	90
PID 1196 wrote to memory of 4756	1196	2024-03-09_93816c0ca69a14e9463e6c97023de6fc_cryptolocker.exe	90
PID 1196 wrote to memory of 4756	1196	2024-03-09_93816c0ca69a14e9463e6c97023de6fc_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-03-09_93816c0ca69a14e9463e6c97023de6fc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_93816c0ca69a14e9463e6c97023de6fc_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1196
- 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:4756

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
63KB

MD5
9d436ba1d1748c36958baa0097eaba0b

SHA1
45686ea4fec78e0972ee810beb95c0add5a5b9fe

SHA256
80726283321586d258eea8e80d6abe9b8f181ad104a19a1fc824bf367a3b25e9

SHA512
2df32999146a3b4e6cb3440f3669e7fa5c9128e954716fd54ebfe334fe474a8f2d0212c287bd65e6c394247ecf5bdefa64251f783f2ad68586160c69c772bbb6

Download Submit
memory/1196-0-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/1196-1-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/1196-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4756-21-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download