2876473981136e0a9e3f20c051772b9481af71a87d97bdc5fab0750174a491d3

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12/02/2024, 09:46

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General

Target

2024-02-12_5f140bb6017298ca701d5b1a71630794_cryptolocker.exe
Size

33KB
MD5

5f140bb6017298ca701d5b1a71630794
SHA1

b7500576ef9f428c8094a85450d76077f0a74be5
SHA256

2876473981136e0a9e3f20c051772b9481af71a87d97bdc5fab0750174a491d3
SHA512

a257293a72075ecd75214d0801db49d2b86b1c2bd8e8ffbe5f075a0d04e666f7f2fac848c99405dbf255fccc312382bea04c174149baaa7bc1223d2e416384bb
SSDEEP

384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf0w3sp8awF:bgX4zYcgTEu6QOaryfjqDDw3sCawF

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023202-12.dat	CryptoLocker_rule2

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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	2024-02-12_5f140bb6017298ca701d5b1a71630794_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4904	hasfj.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 976 wrote to memory of 4904	976	2024-02-12_5f140bb6017298ca701d5b1a71630794_cryptolocker.exe	85
PID 976 wrote to memory of 4904	976	2024-02-12_5f140bb6017298ca701d5b1a71630794_cryptolocker.exe	85
PID 976 wrote to memory of 4904	976	2024-02-12_5f140bb6017298ca701d5b1a71630794_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-12_5f140bb6017298ca701d5b1a71630794_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_5f140bb6017298ca701d5b1a71630794_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:976
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4904

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\hasfj.exe

Filesize
33KB

MD5
d74a44aa7d4840aeeff02928494042a4

SHA1
b368a225c52a552c57ef8b79080f6e70a3cd5e29

SHA256
49e2f55f44349afd2311d8fe20233a89467c90dc30b68e4aff007253ffb1ce75

SHA512
5c2353763704ed33965a50194774da3971457e9b510d62073f70eeb4867e443a8151c832ec537949173d68c46a6587ef3f67c1b7b2647ad8e5727ba00902b85e

Download Submit
memory/976-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/976-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/976-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4904-19-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download