3b1c73c54ab60e59eddc00f2906ebb4aa701b25afc67b11c05b070cc0a16560d

Analysis

max time kernel
142s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
01/02/2024, 23:24

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General

Target

2024-02-01_666a09c119f4824554f09833e4d944bd_cryptolocker.exe
Size

37KB
MD5

666a09c119f4824554f09833e4d944bd
SHA1

ba973c233330ae79e581d56f2db0021c21498ced
SHA256

3b1c73c54ab60e59eddc00f2906ebb4aa701b25afc67b11c05b070cc0a16560d
SHA512

62add2c8cda57445ea5b94cd2a78e908b123996a1659f5b92fe73fcf6fcae63497462c8454aae596d84e514a183d15f6e5f29022159971765936bbc512e316ee
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzoiM8Nekdvjl9V50i3NbF043:bAvJCYOOvbRPDEgXrNekd7l94i3pF043

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023225-12.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-1-5-21-635608581-3370340891-292606865-1000\Control Panel\International\Geo\Nation	2024-02-01_666a09c119f4824554f09833e4d944bd_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
1784	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 1084 wrote to memory of 1784	1084	2024-02-01_666a09c119f4824554f09833e4d944bd_cryptolocker.exe	83
PID 1084 wrote to memory of 1784	1084	2024-02-01_666a09c119f4824554f09833e4d944bd_cryptolocker.exe	83
PID 1084 wrote to memory of 1784	1084	2024-02-01_666a09c119f4824554f09833e4d944bd_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-02-01_666a09c119f4824554f09833e4d944bd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_666a09c119f4824554f09833e4d944bd_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1084
- 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:1784

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
37KB

MD5
33465c502cc17d178d3ad87f54e61567

SHA1
c8a3e5919ecc040cd36a7e8e38882bffa799c3f5

SHA256
23783fa1b02aaae7bc9c04cf1f5c87061257cbab9df7380ddff89f37b6400d8e

SHA512
424f2dc55d4076412c345366a1a95fcbcfec821c3f3bcc3283ebf2f78c08883e30ec673799b4f21e3002bdab1af05f2fe3abcfd5cdb523f13a4e3e029b5f81c6

Download Submit
memory/1084-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/1084-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/1084-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1784-21-0x0000000001FE0000-0x0000000001FE6000-memory.dmp

Filesize
24KB

Download