b645eb7372b010794b3dfbbd3f6b23fa69620dc1a72d95c88d986d6e457b3119

Analysis

max time kernel
0s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
04/01/2024, 15:13

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General

Target

2024-01-03_1eb7d5f01066e7904c824cd70d88408d_cryptolocker.exe
Size

36KB
MD5

1eb7d5f01066e7904c824cd70d88408d
SHA1

ea3bd4a88de52579103c454e6ae02fc0347cfc71
SHA256

b645eb7372b010794b3dfbbd3f6b23fa69620dc1a72d95c88d986d6e457b3119
SHA512

46673d93029b5dc9d738e90a5c1c0b90b954afc5c3c96cfca627455769cfd4536aabbac958571f57e46b36c892c9dc7ddd68301bd340a9a83e3cb1cac9656fb9
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGpNEmNOmnQBDna:o1KhxqwtdgI2MyzNORQtOflIwoHNV2X7

Score

7^/10

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-01-03_1eb7d5f01066e7904c824cd70d88408d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2968	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 2136 wrote to memory of 2968	2136	2024-01-03_1eb7d5f01066e7904c824cd70d88408d_cryptolocker.exe	18
PID 2136 wrote to memory of 2968	2136	2024-01-03_1eb7d5f01066e7904c824cd70d88408d_cryptolocker.exe	18
PID 2136 wrote to memory of 2968	2136	2024-01-03_1eb7d5f01066e7904c824cd70d88408d_cryptolocker.exe	18

C:\Users\Admin\AppData\Local\Temp\2024-01-03_1eb7d5f01066e7904c824cd70d88408d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-03_1eb7d5f01066e7904c824cd70d88408d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2136
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  PID:2968

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

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Downloads

memory/2136-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2136-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/2136-0-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/2968-25-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download