b802277ea6ff6804656250b96d392545df0d996172867a7183b728ef061c439a

Analysis

max time kernel
149s
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
01/07/2024, 18:34

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General

Target

2024-07-01_907ad93f1aa24e869ffdf991082bfe49_cryptolocker.exe
Size

54KB
MD5

907ad93f1aa24e869ffdf991082bfe49
SHA1

8b86abb30be98333c9839ffa68f824175193e067
SHA256

b802277ea6ff6804656250b96d392545df0d996172867a7183b728ef061c439a
SHA512

c993ec6c79ceb3361196eb58dc017f3e401215251b8d71f429c9d8b845a23c82fcbfd885a425d9fbaea5d0412dc980b8c912f5267c6f0c05481bfb3fee9a63e8
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIX6Ec:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7V

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c0000000233be-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c0000000233be-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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-07-01_907ad93f1aa24e869ffdf991082bfe49_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
3884	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 1180 wrote to memory of 3884	1180	2024-07-01_907ad93f1aa24e869ffdf991082bfe49_cryptolocker.exe	80
PID 1180 wrote to memory of 3884	1180	2024-07-01_907ad93f1aa24e869ffdf991082bfe49_cryptolocker.exe	80
PID 1180 wrote to memory of 3884	1180	2024-07-01_907ad93f1aa24e869ffdf991082bfe49_cryptolocker.exe	80

C:\Users\Admin\AppData\Local\Temp\2024-07-01_907ad93f1aa24e869ffdf991082bfe49_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-01_907ad93f1aa24e869ffdf991082bfe49_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1180
- 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:3884

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
54KB

MD5
b3e35126af4435e967d53f00f67d8b69

SHA1
738d5c6eb06536a6753c9c0df5091d4dd15314a1

SHA256
3b9bd134b5fc57613da6f4cd1124ade005e0725debb32a67683267f96c66b6b7

SHA512
88daffd3578c656fb87d1d0846da13daef148041164ceee2b64ce1d5de9339027314173b917b977b40fda877f4323458c0f95ff0b653957da11a8fcc0d6dcb76

Download Submit
memory/1180-0-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/1180-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1180-8-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/3884-25-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download