d75013e09e58e212dc4423f405f8e5115667c0278804fcedc87de7349a3a69e5

Analysis

max time kernel
92s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
22/02/2024, 06:43

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General

Target

2024-02-22_8ad0945ecdabf792202cf7d877790808_cryptolocker.exe
Size

40KB
MD5

8ad0945ecdabf792202cf7d877790808
SHA1

460cff01870c10ddfd0ae023189f236848342b71
SHA256

d75013e09e58e212dc4423f405f8e5115667c0278804fcedc87de7349a3a69e5
SHA512

7960ded7a9178c02ca196cf9aac244ed79d7905e65a5c2fb8df204f0d0755ae18bed43486c31e6209081ad5176751a7eea0196bc64dcf8712bb836fa499b0548
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzoiM8Nekdvjl9V50i3NbZM+iH:bAvJCYOOvbRPDEgXrNekd7l94i3p+z

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023241-12.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-1-5-21-910440534-423636034-2318342392-1000\Control Panel\International\Geo\Nation	2024-02-22_8ad0945ecdabf792202cf7d877790808_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
3668	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 4280 wrote to memory of 3668	4280	2024-02-22_8ad0945ecdabf792202cf7d877790808_cryptolocker.exe	86
PID 4280 wrote to memory of 3668	4280	2024-02-22_8ad0945ecdabf792202cf7d877790808_cryptolocker.exe	86
PID 4280 wrote to memory of 3668	4280	2024-02-22_8ad0945ecdabf792202cf7d877790808_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-22_8ad0945ecdabf792202cf7d877790808_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_8ad0945ecdabf792202cf7d877790808_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4280
- 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:3668

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
40KB

MD5
4c359049704c3d3ec8636c7e2566ae66

SHA1
6a7312471bb38866f77dda5c2431fb7c1269ae01

SHA256
454ccbc22cb7d406e2520dd8151d1c331aaafa415551c99b96e379b8bec78e33

SHA512
d5bb9b9f182b512d898bff984d69a3ce883f03a61ce77dd4707c2931de6ed77f6db2714f06ba5044cc1a326648458a06ee074f7f2e046d252b0a360ce6389708

Download Submit
memory/3668-25-0x0000000001FA0000-0x0000000001FA6000-memory.dmp

Filesize
24KB

Download
memory/4280-0-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/4280-1-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/4280-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download