ee2099fa0c6f35aad8d67621b1ff687807331998b83f6b5bde484cfc6592bfd8

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
10/05/2024, 08:53

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General

Target

2024-05-10_fc30e626c054e27f7aaa3d7e2543e7ec_cryptolocker.exe
Size

52KB
MD5

fc30e626c054e27f7aaa3d7e2543e7ec
SHA1

bc6b4fc1dd6ffee6e0288fc2423d80f48454bfb9
SHA256

ee2099fa0c6f35aad8d67621b1ff687807331998b83f6b5bde484cfc6592bfd8
SHA512

a4d6507c8c834dd8c396fde7a347aacbca558dcead49c0c3a5a5734443a71cfb4f7d3ddef1ec0133c2dbc5479a3e2ee1a51e40698e9a1fd1f563afe8b7e3a195
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAI4R:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7V

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002327c-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002327c-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-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	2024-05-10_fc30e626c054e27f7aaa3d7e2543e7ec_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
2260	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 3080 wrote to memory of 2260	3080	2024-05-10_fc30e626c054e27f7aaa3d7e2543e7ec_cryptolocker.exe	82
PID 3080 wrote to memory of 2260	3080	2024-05-10_fc30e626c054e27f7aaa3d7e2543e7ec_cryptolocker.exe	82
PID 3080 wrote to memory of 2260	3080	2024-05-10_fc30e626c054e27f7aaa3d7e2543e7ec_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-10_fc30e626c054e27f7aaa3d7e2543e7ec_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-10_fc30e626c054e27f7aaa3d7e2543e7ec_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3080
- 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:2260

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
52KB

MD5
00961b63c4abf87c1bbbac285345b3f7

SHA1
8014394e136a64303528789bcf0390b830d81bf7

SHA256
707f2cac4345cc3cd3d3ba62fa1acff5995c79be68f87ad79e8cb7d9d9ee64fe

SHA512
7a4b8a981b07ec3d8eb89531ebd9284e76df576dcdc2095d865ce0263647851b70204bbf9664c45a73da12de5f61890341f7bc6a6f0d88c1878ddbfab67d38b1

Download Submit
memory/2260-25-0x0000000000580000-0x0000000000586000-memory.dmp

Filesize
24KB

Download
memory/3080-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3080-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3080-8-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download