46dca50350c35499b3fecff3b416dff5a0f4120052af5a74d1b88164db7c71f3

Analysis

max time kernel
143s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
12/03/2024, 04:55

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General

Target

2024-03-12_b4608a61e55870acb4c00db64531d621_cryptolocker.exe
Size

31KB
MD5

b4608a61e55870acb4c00db64531d621
SHA1

b09be878f4d5fb18753adb16471415927f160553
SHA256

46dca50350c35499b3fecff3b416dff5a0f4120052af5a74d1b88164db7c71f3
SHA512

85021f5af63d448e2123786ec7a7a89154a4835d943994c24f3d98665a1e8323a7c95f98150a83009428e4bc6304a09c902998c26a82822ec8ae4a04bdec5a9e
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6ckJp0qAMub1:bAvJCYOOvbRPDEgXRc+BA/b1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023268-13.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	2024-03-12_b4608a61e55870acb4c00db64531d621_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
1700	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 3448 wrote to memory of 1700	3448	2024-03-12_b4608a61e55870acb4c00db64531d621_cryptolocker.exe	100
PID 3448 wrote to memory of 1700	3448	2024-03-12_b4608a61e55870acb4c00db64531d621_cryptolocker.exe	100
PID 3448 wrote to memory of 1700	3448	2024-03-12_b4608a61e55870acb4c00db64531d621_cryptolocker.exe	100

C:\Users\Admin\AppData\Local\Temp\2024-03-12_b4608a61e55870acb4c00db64531d621_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_b4608a61e55870acb4c00db64531d621_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3448
- 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:1700

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=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:8
1⤵
PID:1940

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
2d5820b8b770d6d960593a3624f7bbc5

SHA1
354d55362e5ba7935c2bf1c4eb8f4519f1409c2f

SHA256
474af0cb79f0d0026813e20a7984f18ee17c72a90afd34cbcd98792c475d9497

SHA512
fe955e52079db4fc341b91ce92959efd71a33fd576fa75d7d0256bdd1629558f2f74999a5e3353e4e11d73fc7199cac9602c0200c0079f79eb0300796a5c9b9b

Download Submit
memory/1700-18-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/3448-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/3448-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3448-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download