0af1ab1226530997b0dc89897d9e78549b923508822b8fd01308ce7ad6c4e80c

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
06/06/2024, 21:32

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General

Target

2024-06-06_a92c63468941e7ea4c96b36a5ea72294_cryptolocker.exe
Size

46KB
MD5

a92c63468941e7ea4c96b36a5ea72294
SHA1

d6df951ac98955bb5ec6a7753c672a863aeffe8d
SHA256

0af1ab1226530997b0dc89897d9e78549b923508822b8fd01308ce7ad6c4e80c
SHA512

fa040a05b9661a74c07c8ef911782a5d146602ad5f1cb6037484a60224af33eee6eafd95472bfa2a473d3476ecfc3294bd4f1b3f43819ba04b9797dbe6afa01f
SSDEEP

768:s6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBvXOQ69zbjlAAX5e9zz:s6QFElP6n+gJQMOtEvwDpjBvizbR9Xw3

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000235f1-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000235f1-12.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-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	2024-06-06_a92c63468941e7ea4c96b36a5ea72294_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1772	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 2968 wrote to memory of 1772	2968	2024-06-06_a92c63468941e7ea4c96b36a5ea72294_cryptolocker.exe	88
PID 2968 wrote to memory of 1772	2968	2024-06-06_a92c63468941e7ea4c96b36a5ea72294_cryptolocker.exe	88
PID 2968 wrote to memory of 1772	2968	2024-06-06_a92c63468941e7ea4c96b36a5ea72294_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-06-06_a92c63468941e7ea4c96b36a5ea72294_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-06_a92c63468941e7ea4c96b36a5ea72294_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2968
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1772

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 --field-trial-handle=4332,i,9746875443948590908,1444894342962555245,262144 --variations-seed-version --mojo-platform-channel-handle=4180 /prefetch:8
1⤵
PID:4516

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\asih.exe

Filesize
46KB

MD5
c617be1c6348bc551f0049b4ac0b5c3a

SHA1
7271429066774df39258826d42896ece32a6ecca

SHA256
d9cb7bcc181f227cc4357f0bc1ab757f593671fcacf54ac336c4c2c99f2205ef

SHA512
eb1de2db83520322ba44c622c75f5409ffd4ae17f2802bdd53e01d3f614d71be8b0322b7d4ca2a0af26a65895f756c856c822052a298714dbbb25b96bc2ab962

Download Submit
memory/1772-17-0x0000000002000000-0x0000000002006000-memory.dmp

Filesize
24KB

Download
memory/1772-23-0x0000000001FE0000-0x0000000001FE6000-memory.dmp

Filesize
24KB

Download
memory/2968-1-0x0000000000760000-0x0000000000766000-memory.dmp

Filesize
24KB

Download
memory/2968-8-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/2968-0-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download