16284873b23e2e8f30b1b849341c64780a96ceb7a5d9a27d93547366baa18605

Analysis

max time kernel
153s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
19/04/2024, 20:14

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General

Target

2024-04-19_9d79195021b752b8cd79d8681c2a8d98_cryptolocker.exe
Size

52KB
MD5

9d79195021b752b8cd79d8681c2a8d98
SHA1

3189e9a69e8846c9e1cbeee742b3ceff926df0d6
SHA256

16284873b23e2e8f30b1b849341c64780a96ceb7a5d9a27d93547366baa18605
SHA512

b9bcd4d415bebb5c954e147f4875e4a0b7d90264df1a683c4b09fc3c9f608f52af8c9a0800c866691c9afc621e3526982c74ec97b082b6672c226ead667c73a5
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37Yl6dIKld5CS4Gjhh:bgGYcA/53GAA6y37Q6dI+d5QGT

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002325b-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	2024-04-19_9d79195021b752b8cd79d8681c2a8d98_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1100	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 2512 wrote to memory of 1100	2512	2024-04-19_9d79195021b752b8cd79d8681c2a8d98_cryptolocker.exe	95
PID 2512 wrote to memory of 1100	2512	2024-04-19_9d79195021b752b8cd79d8681c2a8d98_cryptolocker.exe	95
PID 2512 wrote to memory of 1100	2512	2024-04-19_9d79195021b752b8cd79d8681c2a8d98_cryptolocker.exe	95

C:\Users\Admin\AppData\Local\Temp\2024-04-19_9d79195021b752b8cd79d8681c2a8d98_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-19_9d79195021b752b8cd79d8681c2a8d98_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1100

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=3208 --field-trial-handle=2256,i,6670388345726423024,18382795228658886258,262144 --variations-seed-version /prefetch:8
1⤵
PID:416

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
52KB

MD5
83c2e85f55ab87125854de7bdb42eb6a

SHA1
4133da4ea63ad51dd723e0798bd19ae37c3ee55e

SHA256
e704abe05343417d2ee02e70de35e4eb7d996ec48942c0c91ec88ae050a4b609

SHA512
4ee6698477cd95be60becde242edc71736b523a12cda1b459910c1b5ecd339b8e175cfb8aff6b83497b844d93b7ad59c4b60c68cc2f95346d2e6ab6309d64ee6

Download Submit
memory/1100-17-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/1100-23-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download
memory/2512-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/2512-1-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/2512-2-0x0000000002400000-0x0000000002406000-memory.dmp

Filesize
24KB

Download