6ab1440d889273a4706e9f0b238b0c2b227e38a3494454be07a4a39dd6a4b4a1

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
18/03/2024, 10:54

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General

Target

2024-03-18_ed959e9f6095825f36369e7fa5e8528b_cryptolocker.exe
Size

63KB
MD5

ed959e9f6095825f36369e7fa5e8528b
SHA1

fd7e4d285dede361fe3adc3d328b17cd91a657b4
SHA256

6ab1440d889273a4706e9f0b238b0c2b227e38a3494454be07a4a39dd6a4b4a1
SHA512

67160921695d62db7cd5b3af6d8a6c20658b23de105b619cb74b7290c30fc9a4ea2f489948e66cd9cf54702feaeaf7b72f40ea02e21fd77cc06efb00d452d6b4
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF299eX:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7s

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-12.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-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	2024-03-18_ed959e9f6095825f36369e7fa5e8528b_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
3652	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 3328 wrote to memory of 3652	3328	2024-03-18_ed959e9f6095825f36369e7fa5e8528b_cryptolocker.exe	88
PID 3328 wrote to memory of 3652	3328	2024-03-18_ed959e9f6095825f36369e7fa5e8528b_cryptolocker.exe	88
PID 3328 wrote to memory of 3652	3328	2024-03-18_ed959e9f6095825f36369e7fa5e8528b_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-18_ed959e9f6095825f36369e7fa5e8528b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-18_ed959e9f6095825f36369e7fa5e8528b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3328
- 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:3652

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
63KB

MD5
3d2619df2f35c090f71188b44d2848d5

SHA1
498afd7c6959be0b602d818964e1d958e50b30e6

SHA256
595186a9f280d55d694d43feb5e0158ed6e66f851cf10f3f5ab68dc81f683227

SHA512
3950a2de96656436da8ef62a4d5d230a8abf271a56fbd1daa1ca0a4073f790edb0e7890d9a44776d4f41f90ece2a4b489bdcf260c2f3db50302aa936ef2d1783

Download Submit
memory/3328-0-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/3328-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/3328-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3652-24-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download