47a6e1d7b24438163014b30b8e3bf741dfd2b58d630b122f7f1c323bad170416

Analysis

max time kernel
142s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
30/05/2024, 21:24

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General

Target

2024-05-30_977ac5657ad6e6148506449185a5e3dd_cryptolocker.exe
Size

51KB
MD5

977ac5657ad6e6148506449185a5e3dd
SHA1

d0273819eee9d2c6ffd021bafcd157fac54b3211
SHA256

47a6e1d7b24438163014b30b8e3bf741dfd2b58d630b122f7f1c323bad170416
SHA512

6566b489f13341761a7b45f19bc507d0e051ab12c7ab424a2e7ec9db9ff08f2acee943cafb788ec6c8216eef69dd7c3d0f7910e174466597500edaf0d8b652aa
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu55id3AMWZUp:X6QFElP6n+gJQMOtEvwDpjB0GIWiWLqp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000b000000023231-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000b000000023231-12.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	2024-05-30_977ac5657ad6e6148506449185a5e3dd_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3744	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 3256 wrote to memory of 3744	3256	2024-05-30_977ac5657ad6e6148506449185a5e3dd_cryptolocker.exe	92
PID 3256 wrote to memory of 3744	3256	2024-05-30_977ac5657ad6e6148506449185a5e3dd_cryptolocker.exe	92
PID 3256 wrote to memory of 3744	3256	2024-05-30_977ac5657ad6e6148506449185a5e3dd_cryptolocker.exe	92

C:\Users\Admin\AppData\Local\Temp\2024-05-30_977ac5657ad6e6148506449185a5e3dd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-30_977ac5657ad6e6148506449185a5e3dd_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3256
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3744

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=4060 --field-trial-handle=2328,i,5873823382323802923,13134441441264702821,262144 --variations-seed-version /prefetch:8
1⤵
PID:3128

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
51KB

MD5
af75fab4f1d2b8bbdbcbecaef1e988b2

SHA1
df5ad8319de236f6b7c7e5a2f018ea9974f57960

SHA256
ec57c03405fa53145ff25844a0a6f357cb020bd28557198441a84a82936d4975

SHA512
0c8a5842702d22106875317d80e168399750a87b5467dafaa6840cb94d89d3c2a59059478846dddf3105815d079be2f7d1f0051b5e7c2173cfb47cdd6994722a

Download Submit
memory/3256-0-0x0000000002290000-0x0000000002296000-memory.dmp

Filesize
24KB

Download
memory/3256-1-0x0000000002290000-0x0000000002296000-memory.dmp

Filesize
24KB

Download
memory/3256-2-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/3744-17-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/3744-19-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download