22077173ee9956883dda5de626a20f37e4619d9fb7044d8fdc8ff7b27a485e64

Analysis

max time kernel
150s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
01/06/2024, 03:29

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General

Target

2024-06-01_1c1be903d4c48915601ccfbaa4245fe2_cryptolocker.exe
Size

32KB
MD5

1c1be903d4c48915601ccfbaa4245fe2
SHA1

a0348c69ddf9b1740b4406dbda283e2441e1847c
SHA256

22077173ee9956883dda5de626a20f37e4619d9fb7044d8fdc8ff7b27a485e64
SHA512

2461bd429b2b4f7e870306077d9b4ff4b486f1e7c6f62e778b7c779a85ee7d4acb7b58c03163b9b56cb6362b3e08747a46b1e9adeb73ad781250d970c8790ac6
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6cJ3v7q:bAvJCYOOvbRPDEgXRcJ2

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023298-12.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-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation	2024-06-01_1c1be903d4c48915601ccfbaa4245fe2_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
2360	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 4684 wrote to memory of 2360	4684	2024-06-01_1c1be903d4c48915601ccfbaa4245fe2_cryptolocker.exe	83
PID 4684 wrote to memory of 2360	4684	2024-06-01_1c1be903d4c48915601ccfbaa4245fe2_cryptolocker.exe	83
PID 4684 wrote to memory of 2360	4684	2024-06-01_1c1be903d4c48915601ccfbaa4245fe2_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-06-01_1c1be903d4c48915601ccfbaa4245fe2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-01_1c1be903d4c48915601ccfbaa4245fe2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4684
- 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:2360

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
32KB

MD5
3ef68c50c9ed584e5d45c795ef78fb03

SHA1
24ce67292b30ae4d4bcfb87a7ba0c00b83a4a484

SHA256
4a88e421c7f1e054208cb088efb547e1639aa8f52b7968304361572989f7ae4b

SHA512
1c3df90b2edd61ff8d5ca1643fe39279114a0facdeafd68aad7e5672dfbfd42d0a4215f64768169287d43af0520dfbc554a639a8796819d29574eb3286799baf

Download Submit
C:\Users\Admin\AppData\Local\Temp\medkem.exe

Filesize
186B

MD5
195110112f766fe6c8ee3635beffa94c

SHA1
7cb28beca310c7d1dc01f027c36cf1b8bf70c5af

SHA256
a20e8b32142b32e2270b6f713d9414baab0c506270e84c4f33ee6c16738c0485

SHA512
1c0f82ce54c9d8018377b8d96a50350d3c3d18165411980485fcd016c053666cf9a9f9cdfaa37d5cc46d7712ed1659aa74fc1491919a0e618aaaa77dd59a1987

Download Submit
memory/2360-25-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/4684-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/4684-8-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/4684-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download