f7f7ba8f0e22ede5eef13130ced9ffb4ed3bcd2c51b33bf5a1a720ca0fb717e4

Analysis

max time kernel
134s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
25/01/2024, 20:29

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General

Target

2024-01-25_9fc7db9a9c18ac76494e18d6b464674c_cryptolocker.exe
Size

37KB
MD5

9fc7db9a9c18ac76494e18d6b464674c
SHA1

6d99318862dc07eaa1fc1b0c2ac783cd0cf00762
SHA256

f7f7ba8f0e22ede5eef13130ced9ffb4ed3bcd2c51b33bf5a1a720ca0fb717e4
SHA512

49cda055c5d4285bcd4aca0e075ffd5d42b04337b702a9b2e051f9f2cec3d82899041f943dacd4750cca11151cf9d84d6d99d4ef96d9a61b63caab67fccef6f2
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzoiM8Nekdvjl9V50i3Nb/mViY:bAvJCYOOvbRPDEgXrNekd7l94i3p/hQ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002325a-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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	demka.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-01-25_9fc7db9a9c18ac76494e18d6b464674c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4260	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 1496 wrote to memory of 4260	1496	2024-01-25_9fc7db9a9c18ac76494e18d6b464674c_cryptolocker.exe	88
PID 1496 wrote to memory of 4260	1496	2024-01-25_9fc7db9a9c18ac76494e18d6b464674c_cryptolocker.exe	88
PID 1496 wrote to memory of 4260	1496	2024-01-25_9fc7db9a9c18ac76494e18d6b464674c_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-25_9fc7db9a9c18ac76494e18d6b464674c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_9fc7db9a9c18ac76494e18d6b464674c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1496
- 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:4260

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\demka.exe

Filesize
38KB

MD5
06ec1252410833c5d24e72765869c07f

SHA1
0d9b98527550902ec1dcd5f2b700081a7eb338ca

SHA256
13f9a345e3f69a34a771a5415d75ce75fca72076896cc80cd89f7fc3df339486

SHA512
21bd0d4b23799bd07650f39c787eacd34c95e7ac4782248aa4f2a6b946785ddc5210d3a5f5e28a3399e1563c6947201a6902a1af37a94937426a22e17ef6eef2

Download Submit
memory/1496-0-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/1496-1-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/1496-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4260-25-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download