9146417c7bb7782aae846c83d58a6fd76fe8beee84ae3988cf95449d046095ef

Analysis

max time kernel
157s
max time network
163s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
04/04/2024, 22:27

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General

Target

2024-04-04_5f3d706b2cd4ec0a0348ef5b2495dfaf_cryptolocker.exe
Size

40KB
MD5

5f3d706b2cd4ec0a0348ef5b2495dfaf
SHA1

4bef8443079bc2519ea4a2cd4ee130151e6a9c09
SHA256

9146417c7bb7782aae846c83d58a6fd76fe8beee84ae3988cf95449d046095ef
SHA512

e1016b05b32336824fdc5b4c315bdbeee5bf093c82e28c915b82c0b9219a6912a6bc51d7f264f79f076a01dc8a93b93f189f0a8caa1fe9a79571113b3df46d04
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDDw3sCu5b+rc5vVcMg:bgGYcA/53GADw8ClrcTcMg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a000000016fa5-12.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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-04-04_5f3d706b2cd4ec0a0348ef5b2495dfaf_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4212	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 3808 wrote to memory of 4212	3808	2024-04-04_5f3d706b2cd4ec0a0348ef5b2495dfaf_cryptolocker.exe	95
PID 3808 wrote to memory of 4212	3808	2024-04-04_5f3d706b2cd4ec0a0348ef5b2495dfaf_cryptolocker.exe	95
PID 3808 wrote to memory of 4212	3808	2024-04-04_5f3d706b2cd4ec0a0348ef5b2495dfaf_cryptolocker.exe	95

C:\Users\Admin\AppData\Local\Temp\2024-04-04_5f3d706b2cd4ec0a0348ef5b2495dfaf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-04_5f3d706b2cd4ec0a0348ef5b2495dfaf_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3808
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4212

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3524 --field-trial-handle=2236,i,5367110156796017614,12594004256180761011,262144 --variations-seed-version /prefetch:8
1⤵
PID:4164

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
40KB

MD5
0c37361f993aad52bd3bb8011570ee22

SHA1
8a93424d2e40e58badb2f75009f5e925833bc4f4

SHA256
5b02ef70fad426209b186e683305cb0149057ed53c221ebfcc5b898047471de8

SHA512
6b3b29fbe96fd01321d9e5d609140d2197e2af22c2b5075d0fe7c3043fb52a2555a038e37c041af023d49e57cd0aedb62eaca1fb0bf53c4ff8158e0cd9fae8ad

Download Submit
memory/3808-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3808-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3808-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4212-18-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/4212-17-0x00000000020A0000-0x00000000020A6000-memory.dmp

Filesize
24KB

Download