30edb81a5bae39d2f85c8cf3156af7a91c27e44b9a2a5c466ef3966f8605fbc2

Analysis

max time kernel
143s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
24/04/2024, 03:26

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-04-24_051519c95edc9365f402b9a68d221f4a_cryptolocker.exe
Size

40KB
MD5

051519c95edc9365f402b9a68d221f4a
SHA1

e66149f2b55490f7017d1a4017ea9a3b2276c1f6
SHA256

30edb81a5bae39d2f85c8cf3156af7a91c27e44b9a2a5c466ef3966f8605fbc2
SHA512

17cac873d41ff988215429a899c60db083f57f8b2669d883e41f568fdc36fe070e4048d6db21fd11006c899c134c69b539a8f359255de8496ebeb90632058262
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HKcfrt:X6QFElP6n+gJQMOtEvwDpjBsYK6rt

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023285-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023285-12.dat	CryptoLocker_set1

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	2024-04-24_051519c95edc9365f402b9a68d221f4a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4752	asih.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 1432 wrote to memory of 4752	1432	2024-04-24_051519c95edc9365f402b9a68d221f4a_cryptolocker.exe	91
PID 1432 wrote to memory of 4752	1432	2024-04-24_051519c95edc9365f402b9a68d221f4a_cryptolocker.exe	91
PID 1432 wrote to memory of 4752	1432	2024-04-24_051519c95edc9365f402b9a68d221f4a_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-04-24_051519c95edc9365f402b9a68d221f4a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_051519c95edc9365f402b9a68d221f4a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1432
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4752

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=1416 --field-trial-handle=3240,i,13319578961094268484,16557498665191861597,262144 --variations-seed-version /prefetch:8
1⤵
PID:1704

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
40KB

MD5
4c37d0174f89a01be0ca957f234727d7

SHA1
9e7e4b824205f7807b37331e4fa733ec5b021d27

SHA256
71454e685bd53ea622283979f622ba8c1e29a07db23421c7ea272cf5c2952fd8

SHA512
311289d99af8f9b23922e3778ea224a45490eaf62cc241936b0e6fabb72c352f11b9cbc4052784ca4e7aaf774d1390eead580649d41dc6493e1d1ff6661f4d09

Download Submit
memory/1432-0-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/1432-1-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/1432-2-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/4752-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4752-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download