a48bc971a2ad77506b7b8112ede162409e7cc5548d112dd9fdea5ba1a87511b0

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
20/02/2024, 04:48

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General

Target

2024-02-20_6516d3ea5594d89ea0ecabf5445a2236_cryptolocker.exe
Size

33KB
MD5

6516d3ea5594d89ea0ecabf5445a2236
SHA1

ba7b59f45d519c3c9607eb4ca616546983879723
SHA256

a48bc971a2ad77506b7b8112ede162409e7cc5548d112dd9fdea5ba1a87511b0
SHA512

3fa38f43b4bf9e5dd282ee5fdeebe3490b5437a48e0687fbbd3e64c7c366c3b8ebed7f5ff08d3aeb77da5a809adc06a7fd85a254fc5751a516bd22a0b3011324
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunexRlz5Kg1GwB:bA74zYcgT/Ekd0ryfjPIunYHKO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002320b-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-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	2024-02-20_6516d3ea5594d89ea0ecabf5445a2236_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4464	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 1916 wrote to memory of 4464	1916	2024-02-20_6516d3ea5594d89ea0ecabf5445a2236_cryptolocker.exe	85
PID 1916 wrote to memory of 4464	1916	2024-02-20_6516d3ea5594d89ea0ecabf5445a2236_cryptolocker.exe	85
PID 1916 wrote to memory of 4464	1916	2024-02-20_6516d3ea5594d89ea0ecabf5445a2236_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-20_6516d3ea5594d89ea0ecabf5445a2236_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_6516d3ea5594d89ea0ecabf5445a2236_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4464

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
efee78b4cf4e200f6609f6ad64402f96

SHA1
66617f087675bc3b9daebf5afd188667e886b28d

SHA256
f9c4ee0026f36fd745f26c1f9d74420eb03604d2cc17f157fb31ca30916bdf00

SHA512
cc0635658a7df0bdbc04d37ff17960e63aae9857619408c4edd9257bf9ecd4d739a60afa84b28e59a92b1511e85b54730928c92fb2c7fffb86da6a62f81b3be4

Download Submit
memory/1916-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/1916-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/1916-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4464-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/4464-22-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download