0f018c295358f400ca87b53aa534248247c59fd8729571a2800f8e7d0e0a3816

Analysis

max time kernel
130s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
28/01/2024, 12:39

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General

Target

2024-01-28_7b1ad8a2f2c111f2220a2aa0e63c2ca1_cryptolocker.exe
Size

35KB
MD5

7b1ad8a2f2c111f2220a2aa0e63c2ca1
SHA1

2712be799b7dec70d3b6439aa32b6ebc55684bf3
SHA256

0f018c295358f400ca87b53aa534248247c59fd8729571a2800f8e7d0e0a3816
SHA512

e594ef64b1ccc9c5e9384c2421aaf5ce47efa0b2d0cf8c8357ab5283301caa37da325e207aea47d182872d5afdb2a462e4d99f9d02dbe7560b8e1a07544274a5
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunIVpeNs23mAA6lWVNs:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3s

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023224-12.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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-01-28_7b1ad8a2f2c111f2220a2aa0e63c2ca1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2820	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 3864 wrote to memory of 2820	3864	2024-01-28_7b1ad8a2f2c111f2220a2aa0e63c2ca1_cryptolocker.exe	86
PID 3864 wrote to memory of 2820	3864	2024-01-28_7b1ad8a2f2c111f2220a2aa0e63c2ca1_cryptolocker.exe	86
PID 3864 wrote to memory of 2820	3864	2024-01-28_7b1ad8a2f2c111f2220a2aa0e63c2ca1_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-01-28_7b1ad8a2f2c111f2220a2aa0e63c2ca1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-28_7b1ad8a2f2c111f2220a2aa0e63c2ca1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3864
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2820

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
11707203123ef4a640b7095391e3a5ab

SHA1
a36f883ca580442899a79c2ff37a6da1f381306e

SHA256
bd6a390295ab1c7cc5a432db307cc4125b16aba22c655ca313f660a31f85e9ae

SHA512
0364ae61c8730e19a96f6fc8256a726ec49cd4813152b54ad84eef5ca035a6cdbfce284c30605afdd26940916b0322e1857a65e72a419dd65bef3928eb75b112

Download Submit
memory/2820-18-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/2820-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/3864-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/3864-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/3864-2-0x0000000002380000-0x0000000002386000-memory.dmp

Filesize
24KB

Download