5b31286ce4e76c84b0acdbb59ce4f5430dd2a26650381a593333ba66f8f3ffd2

Analysis

max time kernel
91s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28/03/2024, 17:27

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General

Target

2024-03-28_1269b0a80291e460e96141da7a8c0456_cryptolocker.exe
Size

35KB
MD5

1269b0a80291e460e96141da7a8c0456
SHA1

848ba8f56c9eef7b5686d02f19e9a6e18e7f19ee
SHA256

5b31286ce4e76c84b0acdbb59ce4f5430dd2a26650381a593333ba66f8f3ffd2
SHA512

5191764e1b2b0f17aefcad985b23545baef9193ab3317fcb405f7e9c59887040b6d5f806802816a888f3d29fdf923a37d62763adfa8693ac4f6ab93e435c68bc
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGp/YIm7wm6:o1KhxqwtdgI2MyzNORQtOflIwoHNV2X9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000231e1-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000231e1-12.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-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	2024-03-28_1269b0a80291e460e96141da7a8c0456_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
4640	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 4640	3268	2024-03-28_1269b0a80291e460e96141da7a8c0456_cryptolocker.exe	86
PID 3268 wrote to memory of 4640	3268	2024-03-28_1269b0a80291e460e96141da7a8c0456_cryptolocker.exe	86
PID 3268 wrote to memory of 4640	3268	2024-03-28_1269b0a80291e460e96141da7a8c0456_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-03-28_1269b0a80291e460e96141da7a8c0456_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-28_1269b0a80291e460e96141da7a8c0456_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:4640

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
35KB

MD5
f175c91ede1514b58f792869a0bb8832

SHA1
e17375368055f181eade253ba1a7d7a73e8df776

SHA256
d2da0cf0440321f5adcc5b656b0911bbb8b6471e79a4d48a984fde766fceea00

SHA512
ad04b82951e80a570611c7ab7b088466def899d6506bd95b3c28fe563bc1827c7f2da3c04ac201d769a0f95124997674b24894eb19d9ea55fb1894698529cebf

Download Submit
memory/3268-0-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/3268-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

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

Filesize
24KB

Download
memory/4640-20-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download