7e648da49713aec15d0c338ba9f8a53d1694708a72e7c16a5b68000504529c7d

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
24-04-2024 17:59

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General

Target

2024-04-24_d704053a426f41f6e31b62126f4c7d74_cryptolocker.exe
Size

29KB
MD5

d704053a426f41f6e31b62126f4c7d74
SHA1

a6c748b5e0d1ea59e509126e507b93697b873774
SHA256

7e648da49713aec15d0c338ba9f8a53d1694708a72e7c16a5b68000504529c7d
SHA512

5cce824340f9b4778b7b526303d7d565c68a4f53cc3f8223dcbbb7f4f3c4498a9a52ab71abf0208620ac2cbeb4b8563281c53ffb96fa88e37524a94d1c5d7b7f
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGbNAKSjNfb:o1KhxqwtdgI2MyzNORQtOflIwoHNV2X6

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x001c00000001e97e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x001c00000001e97e-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 1 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-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation	2024-04-24_d704053a426f41f6e31b62126f4c7d74_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4004	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 1472 wrote to memory of 4004	1472	2024-04-24_d704053a426f41f6e31b62126f4c7d74_cryptolocker.exe	89
PID 1472 wrote to memory of 4004	1472	2024-04-24_d704053a426f41f6e31b62126f4c7d74_cryptolocker.exe	89
PID 1472 wrote to memory of 4004	1472	2024-04-24_d704053a426f41f6e31b62126f4c7d74_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-04-24_d704053a426f41f6e31b62126f4c7d74_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_d704053a426f41f6e31b62126f4c7d74_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1472
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  PID:4004

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

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Downloads

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

Filesize
29KB

MD5
09a578ac45958f372bee010e5e96957e

SHA1
ab6e0b610a26845cf0a18eced5117c540afbf802

SHA256
7e1b331f97fb75efac7ad17ec5c6de3cf2bae0e7e0b56d83dc966b3e5e4f00b4

SHA512
7992d161cb9f51abdaf7556d38e9237d58544b96e7f4b2aae6b43204755d70deb498a3d90cbbf99d7dfd9579950aa3b902bd8b711af4097479bd93b1dddf6510

Download Submit
memory/1472-0-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/1472-1-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/1472-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4004-21-0x0000000002030000-0x0000000002036000-memory.dmp

Filesize
24KB

Download