1117645c40624aec0f0e0a45d08cbc428528cfb249fff8a7f5b69a11aaeab3d1

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
14/03/2024, 13:43

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General

Target

2024-03-14_730ea2ac96e4a3fa6e0cd950eacc6f6a_cryptolocker.exe
Size

63KB
MD5

730ea2ac96e4a3fa6e0cd950eacc6f6a
SHA1

849391574e6fc82b589e49ad8ba499bdad89411b
SHA256

1117645c40624aec0f0e0a45d08cbc428528cfb249fff8a7f5b69a11aaeab3d1
SHA512

d223d01f4933128a85be07b11f92a6b267e9eb55777238cb2848a01cc9532e53d70c3f8ffdafd87497b65d5b05e0015da8536c98b2024475c40c69355db2d0f8
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF29343I:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7F

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002321c-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002321c-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-1-5-21-2727153400-192325109-1870347593-1000\Control Panel\International\Geo\Nation	hurok.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2727153400-192325109-1870347593-1000\Control Panel\International\Geo\Nation	2024-03-14_730ea2ac96e4a3fa6e0cd950eacc6f6a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2340	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 1720 wrote to memory of 2340	1720	2024-03-14_730ea2ac96e4a3fa6e0cd950eacc6f6a_cryptolocker.exe	91
PID 1720 wrote to memory of 2340	1720	2024-03-14_730ea2ac96e4a3fa6e0cd950eacc6f6a_cryptolocker.exe	91
PID 1720 wrote to memory of 2340	1720	2024-03-14_730ea2ac96e4a3fa6e0cd950eacc6f6a_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-03-14_730ea2ac96e4a3fa6e0cd950eacc6f6a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_730ea2ac96e4a3fa6e0cd950eacc6f6a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1720
- 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:2340

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
64KB

MD5
0cc7e876d97e154eea62bebd143700aa

SHA1
3c9cc6c6bc8fa1ae0973fb548bf66ed2d6501243

SHA256
ec6738de5b5f20b8b0c95d4da071e2ea89b7db42fb859461a8dd61ac01cce910

SHA512
b85f47684c71d35a2af7994180b9950f3adff2018008b257ba289d1d088cf4d4bc826200d9b3daafabe1a0f043342dc111d02788bf267da177f3092077d23316

Download Submit
memory/1720-0-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/1720-1-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/1720-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2340-21-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download