f60792d8a8766fdcc3a9ffd315111d542705d57a792608963c7aa79dac670bee

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240319-en
resource tags

arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
submitted
27/03/2024, 05:35

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-03-27_7e70e30d730c45341cfd858dc73b7aee_cryptolocker.exe
Size

131KB
MD5

7e70e30d730c45341cfd858dc73b7aee
SHA1

b075af89e9ee56db7193bfce07b6207ca3fa75e3
SHA256

f60792d8a8766fdcc3a9ffd315111d542705d57a792608963c7aa79dac670bee
SHA512

ed0a9c42395fd4c21df786e096c305419b6d07e9a8a3abfa6bf3a287b8f4e72ee5d940e6b87925d1ce093571d5d6869cc9f2720324152279b6546d1d4b1b7226
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgp699GNtL1eqi:V6a+pOtEvwDpjtzL

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023351-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023351-12.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-1-5-21-817259280-2658881748-983986378-1000\Control Panel\International\Geo\Nation	2024-03-27_7e70e30d730c45341cfd858dc73b7aee_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1896	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 772 wrote to memory of 1896	772	2024-03-27_7e70e30d730c45341cfd858dc73b7aee_cryptolocker.exe	96
PID 772 wrote to memory of 1896	772	2024-03-27_7e70e30d730c45341cfd858dc73b7aee_cryptolocker.exe	96
PID 772 wrote to memory of 1896	772	2024-03-27_7e70e30d730c45341cfd858dc73b7aee_cryptolocker.exe	96

C:\Users\Admin\AppData\Local\Temp\2024-03-27_7e70e30d730c45341cfd858dc73b7aee_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-27_7e70e30d730c45341cfd858dc73b7aee_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:772
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1896

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=3380 --field-trial-handle=2148,i,1752153415760610784,11376271161549019716,262144 --variations-seed-version /prefetch:8
1⤵
PID:1228

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
131KB

MD5
eec73784c1f184b6d58754aadf568b4e

SHA1
58893e885c06c5a83216511fd30e03cfcfc8870a

SHA256
6b1b6c919b2a78c251f903dfd018aeff698a45b5d7a73e5f74e263826eaa3a42

SHA512
aefb45a711a2db515eef5d650d9a4666621fcc22bcfb7605208634d8cfba2de57ff1b6a5bd57764c9f73ea6f472efcbb3b5c46b3476798e034916402caf54411

Download Submit
memory/772-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/772-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/772-2-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/1896-17-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/1896-21-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download