e38a3df1ba700912ff595a044c47f7e828d5f1679274871acfebd5d9a7d4583d

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
11/06/2024, 00:42

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General

Target

2024-06-11_c6afc7b04292ffb1ae456e74de239c4c_cryptolocker.exe
Size

48KB
MD5

c6afc7b04292ffb1ae456e74de239c4c
SHA1

f6452004682f5447c4bc0acfd075e1b1729c89ca
SHA256

e38a3df1ba700912ff595a044c47f7e828d5f1679274871acfebd5d9a7d4583d
SHA512

468e249c55b7ba997d7db7d9c243e20442fd7b204747c240a98b57b41cfd6a9684a02cdbf196e710ec32831ac9855403e959036e85528597ff8b16878a8c9c16
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x5hjatshz:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7m

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002327d-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002327d-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-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation	2024-06-11_c6afc7b04292ffb1ae456e74de239c4c_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
3960	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 4892 wrote to memory of 3960	4892	2024-06-11_c6afc7b04292ffb1ae456e74de239c4c_cryptolocker.exe	80
PID 4892 wrote to memory of 3960	4892	2024-06-11_c6afc7b04292ffb1ae456e74de239c4c_cryptolocker.exe	80
PID 4892 wrote to memory of 3960	4892	2024-06-11_c6afc7b04292ffb1ae456e74de239c4c_cryptolocker.exe	80

C:\Users\Admin\AppData\Local\Temp\2024-06-11_c6afc7b04292ffb1ae456e74de239c4c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-11_c6afc7b04292ffb1ae456e74de239c4c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4892
- 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:3960

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
bad31ea2107a95fb88513e34367907f8

SHA1
eced1a3fa5c1734ec95dc5ac338b2b076d9ac6d5

SHA256
817614d74720c8941d337087e12ecd33c38428d88535d5540d9f79251d6f7fd0

SHA512
9998699652564a1563338f3586687580a5ec2fd637949e94c77a8f8254a73a72ee96e49825ba552d95467a7a71cab6b82db1ae4d3a2dc1a4fcfe602d41e2a91a

Download Submit
memory/3960-25-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/4892-0-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/4892-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4892-8-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download