e7c76aaac150e22f913708f02d4bbb61cc00b161310aeea41f0a5027696dc9dc

Analysis

max time kernel
144s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
22/02/2024, 22:30

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-22_6f1fa74f9a47d953b37afbd96770a815_cryptolocker.exe
Size

62KB
MD5

6f1fa74f9a47d953b37afbd96770a815
SHA1

92edb347c07585c4bc96d49d81f69860bf7a5843
SHA256

e7c76aaac150e22f913708f02d4bbb61cc00b161310aeea41f0a5027696dc9dc
SHA512

e5d0a99e87e92f488665b8e4608e04f6661c3389a812e636ee0fdbd194b61f939ecffe25cc631511b5e788c0cee57635c2ef4cf554ce543e4e1d4fb9c4b71fb6
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293Vj:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7L

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023128-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023128-12.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-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation	2024-02-22_6f1fa74f9a47d953b37afbd96770a815_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
1424	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 3268 wrote to memory of 1424	3268	2024-02-22_6f1fa74f9a47d953b37afbd96770a815_cryptolocker.exe	86
PID 3268 wrote to memory of 1424	3268	2024-02-22_6f1fa74f9a47d953b37afbd96770a815_cryptolocker.exe	86
PID 3268 wrote to memory of 1424	3268	2024-02-22_6f1fa74f9a47d953b37afbd96770a815_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-22_6f1fa74f9a47d953b37afbd96770a815_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_6f1fa74f9a47d953b37afbd96770a815_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3268
- 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:1424

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
62KB

MD5
8b5b3d87b756a6a5c85e9c8febf99bc5

SHA1
facc6fa6fc8a3e7e8345ffc5f4fd7d0711de8320

SHA256
6a374d11c39eb1842c99f4cb5ac465d713d66a2ceb287b47857893b21b1557c4

SHA512
8a0946e244cc2bee631a6ba647d76463cb45e10f34db310f5e2afc41f8fc221a4eeb9318b1068f9b4906118c1d33981e1b4753ca1f2ae3983b4ec64bdd4a08c4

Download Submit
memory/1424-18-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/3268-0-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/3268-1-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/3268-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download