d3f5f7cdc9ed2e61325e28cb3c4c8193b0ef9b55464718f534c349b4f2d7c737

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
14-06-2024 08:18

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General

Target

2024-06-14_dc0f1ad64ad7f162d64348cafef97bfd_cryptolocker.exe
Size

55KB
MD5

dc0f1ad64ad7f162d64348cafef97bfd
SHA1

cdd6ff20eed51f6506d716f4487ab74d3d916dbc
SHA256

d3f5f7cdc9ed2e61325e28cb3c4c8193b0ef9b55464718f534c349b4f2d7c737
SHA512

5ae7f0124398bd32a6cfb211306e96b33db1d18213f33167a561e0596e6d31c355b4c164748bb07fe7652a6d2a50d7cfb475c0a71fd09bf165457a5b4d08f673
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIX6EJ:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7w

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a0000000233b7-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000a0000000233b7-12.dat	CryptoLocker_set1

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-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	2024-06-14_dc0f1ad64ad7f162d64348cafef97bfd_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
5100	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 1980 wrote to memory of 5100	1980	2024-06-14_dc0f1ad64ad7f162d64348cafef97bfd_cryptolocker.exe	81
PID 1980 wrote to memory of 5100	1980	2024-06-14_dc0f1ad64ad7f162d64348cafef97bfd_cryptolocker.exe	81
PID 1980 wrote to memory of 5100	1980	2024-06-14_dc0f1ad64ad7f162d64348cafef97bfd_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-06-14_dc0f1ad64ad7f162d64348cafef97bfd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-14_dc0f1ad64ad7f162d64348cafef97bfd_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1980
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  PID:5100

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

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

Filesize
55KB

MD5
e47fabba9a17954b5eeb347662e4a40b

SHA1
61df0545c25d5508080d23ea735f379b111d1805

SHA256
48dce864b64110a9785e1f9380980379295ba51309921752b44f1a2b29ac559a

SHA512
fd6637e163f8f0e54a2f4c925f52f18c9fa6cb99015505a06f622df10c341d5bfc306f71ae6dd857c55657eabed2d2146fbf60d3765d2aec77684fc3cfebfe3f

Download Submit
memory/1980-0-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/1980-8-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/1980-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download