dbadcdb12df81380c0ca63e13315c7741f3574083513fcbaed3a7b66fa25ce26

Analysis

max time kernel
140s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
02/05/2024, 03:48

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General

Target

2024-05-02_c8c81e8706b5fc2db6363b4225745b09_cryptolocker.exe
Size

65KB
MD5

c8c81e8706b5fc2db6363b4225745b09
SHA1

5c96cfba78216760a5b467862fc475aaf2607822
SHA256

dbadcdb12df81380c0ca63e13315c7741f3574083513fcbaed3a7b66fa25ce26
SHA512

e9305cce992a6ef1f6a089fd227c2c07f47fa2fbf34efa206797fec9e2e5d823da90e09092dbe3f3c575046f778843d6010ff44fe6e07d101232ee5a110427fa
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF299X:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7P

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b4d-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b4d-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-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation	2024-05-02_c8c81e8706b5fc2db6363b4225745b09_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
3736	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 640 wrote to memory of 3736	640	2024-05-02_c8c81e8706b5fc2db6363b4225745b09_cryptolocker.exe	83
PID 640 wrote to memory of 3736	640	2024-05-02_c8c81e8706b5fc2db6363b4225745b09_cryptolocker.exe	83
PID 640 wrote to memory of 3736	640	2024-05-02_c8c81e8706b5fc2db6363b4225745b09_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-02_c8c81e8706b5fc2db6363b4225745b09_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-02_c8c81e8706b5fc2db6363b4225745b09_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:640
- 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:3736

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
65KB

MD5
5f96f44d1abae7d07fb30c860124bfcf

SHA1
896fbe6e19c282a55d0c0ba42e40c5a0b2dfd205

SHA256
c2bd7afe37a195ba976b6246dc2892671db187738744e9c8bb3a4d90007e38e6

SHA512
b6d36cf267c567f7bfb66f1a48e82945ed2f4d2219519d0375a83156b46b06a47568a5e99577db8ef913fa1ed473aed08c836a7ecd3936e5d1652c9fdc7e7b97

Download Submit
memory/640-0-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/640-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/640-8-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/3736-25-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download