0182ab60a8ff5babb2bce62474c48a26436c8473bb7d7e92f85f16f9926a9e84

Analysis

max time kernel
88s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
21/02/2024, 11:38

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General

Target

2024-02-21_8b69df985e154a54be52257d7be25736_cryptolocker.exe
Size

49KB
MD5

8b69df985e154a54be52257d7be25736
SHA1

030b126603da6a2f46c895d984ec2ac438c2b8fb
SHA256

0182ab60a8ff5babb2bce62474c48a26436c8473bb7d7e92f85f16f9926a9e84
SHA512

8b246464cc0145365d98e1506077e0aa9b860f97c8b9452d5f26fb945a2166eb89370cbb14732fde0f49567b1559491c56b63fbdf8c1d6652ab0e73db29813fe
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIC:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7d

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000231f9-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000231f9-12.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-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	2024-02-21_8b69df985e154a54be52257d7be25736_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
3680	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 1596 wrote to memory of 3680	1596	2024-02-21_8b69df985e154a54be52257d7be25736_cryptolocker.exe	84
PID 1596 wrote to memory of 3680	1596	2024-02-21_8b69df985e154a54be52257d7be25736_cryptolocker.exe	84
PID 1596 wrote to memory of 3680	1596	2024-02-21_8b69df985e154a54be52257d7be25736_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-21_8b69df985e154a54be52257d7be25736_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_8b69df985e154a54be52257d7be25736_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1596
- 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:3680

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
49KB

MD5
33e5a8a74a5803cc442b70402ef804ee

SHA1
49dabdcaae9756e9ba019e6ab8ca4b46cdc23d5b

SHA256
ae63c90dee3cb8e779f3502611f024f92f1dc929dfe552da4b0ffe7e94eac115

SHA512
61b6a44f78a7bef5395d6d8bfe79dd66ec1f50f2b0284b548213b1edb2dd69e2518574fe5e2361a567b7712ebc1c41c0a474bf2144cfae4224d6d41aa9596871

Download Submit
memory/1596-0-0x0000000000760000-0x0000000000766000-memory.dmp

Filesize
24KB

Download
memory/1596-1-0x0000000000760000-0x0000000000766000-memory.dmp

Filesize
24KB

Download
memory/1596-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3680-22-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download