c3238583dd57e9966962dcee11098e4e1cf4677e498213cd5c28a357d79c0e66

Analysis

max time kernel
153s
max time network
164s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
13/03/2024, 04:50

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General

Target

2024-03-13_a1453dfbb69b60e20286711630c93cec_cryptolocker.exe
Size

34KB
MD5

a1453dfbb69b60e20286711630c93cec
SHA1

f83c18bb41b939af9075347496c082b0dbd9b827
SHA256

c3238583dd57e9966962dcee11098e4e1cf4677e498213cd5c28a357d79c0e66
SHA512

d6629a3da666955286ee32868007b750983a51814c539fe8813edf1d871eb7b8ee878434eb992061205a790aecf9ec959a77c6eb28fa23f1115d8c3d2dc74e9e
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunexRlSrxVfdsHYwr:bA74zYcgT/Ekd0ryfjPIunYw16Nr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00080000000231fc-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-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation	2024-03-13_a1453dfbb69b60e20286711630c93cec_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4136	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 3196 wrote to memory of 4136	3196	2024-03-13_a1453dfbb69b60e20286711630c93cec_cryptolocker.exe	89
PID 3196 wrote to memory of 4136	3196	2024-03-13_a1453dfbb69b60e20286711630c93cec_cryptolocker.exe	89
PID 3196 wrote to memory of 4136	3196	2024-03-13_a1453dfbb69b60e20286711630c93cec_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-13_a1453dfbb69b60e20286711630c93cec_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-13_a1453dfbb69b60e20286711630c93cec_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3196
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4136

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
35KB

MD5
af953a07e4ac9f819e413802b2e0c3d9

SHA1
9b36749a6322f4ebb4400bab723866ceed28029e

SHA256
73e03cc6c04e1f0d6341d040831cdc1836b2ea7a74c555c411647320b3a1f8a4

SHA512
0d7c52501d5679dafb2d94cc17ff081f30c7eee7ccdbf5a00b8f594c515f8bd5fa078d7886f98f60cb12c4f49b9d3f1ed0ae64754594af9faa62c7e253d6bfc2

Download Submit
memory/3196-0-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download
memory/3196-1-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download
memory/3196-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4136-17-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download
memory/4136-18-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download