23fa26457507974146ae1abf61bb874c5874f4be3aff25c2c711ba42641a9c3c

Analysis

max time kernel
144s
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
09/03/2024, 17:27

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General

Target

2024-03-09_1fcc0b4c5a1f1fec7c3b7a1ea2e175c6_cryptolocker.exe
Size

31KB
MD5

1fcc0b4c5a1f1fec7c3b7a1ea2e175c6
SHA1

51697cf14ed5473729e4a265d8a6885def308b7f
SHA256

23fa26457507974146ae1abf61bb874c5874f4be3aff25c2c711ba42641a9c3c
SHA512

8ecf25c8aeb7354ebb9db06e0340c6f042632b918afaf858072d84b08c11f07bd3715d086740fef2fa3fa75a2342f5fa13d4448e2e1fcb392efc7465af489ed5
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6cuah0Hok:bAvJCYOOvbRPDEgXRc/k

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023280-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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	2024-03-09_1fcc0b4c5a1f1fec7c3b7a1ea2e175c6_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
764	demka.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 4736 wrote to memory of 764	4736	2024-03-09_1fcc0b4c5a1f1fec7c3b7a1ea2e175c6_cryptolocker.exe	99
PID 4736 wrote to memory of 764	4736	2024-03-09_1fcc0b4c5a1f1fec7c3b7a1ea2e175c6_cryptolocker.exe	99
PID 4736 wrote to memory of 764	4736	2024-03-09_1fcc0b4c5a1f1fec7c3b7a1ea2e175c6_cryptolocker.exe	99

C:\Users\Admin\AppData\Local\Temp\2024-03-09_1fcc0b4c5a1f1fec7c3b7a1ea2e175c6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_1fcc0b4c5a1f1fec7c3b7a1ea2e175c6_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4736
- C:\Users\Admin\AppData\Local\Temp\demka.exe
  "C:\Users\Admin\AppData\Local\Temp\demka.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:764

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=3952 --field-trial-handle=2656,i,16940681401824032220,151921362336696246,262144 --variations-seed-version /prefetch:8
1⤵
PID:3828

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\demka.exe

Filesize
31KB

MD5
c4efafe0b54ef539179db036a6144c12

SHA1
66dafdca987e52aa0b0c7418124d2a468abfeb65

SHA256
d9a30f83933ae3f30793a9cc43ef531af4b51f361f01a04e4f755bd06ad2c6b8

SHA512
3064fad9e25c8726a7bcbda31fdd339fb444248ce601c3704770e4c179940fc94da4b47d394b9a69e8e8ed41bf2bc8960e0f02793e884701d351424803d0307d

Download Submit
memory/764-20-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download
memory/4736-0-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/4736-1-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/4736-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download