5951777ce4399ce983b95f205b48d9e567eebdca85ea40f1b9fd0a6ad56a253c

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
06/06/2024, 00:23

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General

Target

2024-06-05_893da2fb9885b20fa08fbe62992463e0_cryptolocker.exe
Size

37KB
MD5

893da2fb9885b20fa08fbe62992463e0
SHA1

31aaa35109aa559adc4eab710d4295d7148a64fb
SHA256

5951777ce4399ce983b95f205b48d9e567eebdca85ea40f1b9fd0a6ad56a253c
SHA512

d14299f6dbced7a20e0e6b4a42b19140068bc3f8a350ae11fc72af85bbde76216463a3d5ba7bc7c3c9a8f0ea7cda11fbb295fc4c6c9dc867d639116f82346244
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6c3l8Sz960SPluRii5:bAvJCYOOvbRPDEgXRc3SSz3SPER

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000b00000002340a-17.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 1 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-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation	2024-06-05_893da2fb9885b20fa08fbe62992463e0_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4052	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 3296 wrote to memory of 4052	3296	2024-06-05_893da2fb9885b20fa08fbe62992463e0_cryptolocker.exe	82
PID 3296 wrote to memory of 4052	3296	2024-06-05_893da2fb9885b20fa08fbe62992463e0_cryptolocker.exe	82
PID 3296 wrote to memory of 4052	3296	2024-06-05_893da2fb9885b20fa08fbe62992463e0_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-06-05_893da2fb9885b20fa08fbe62992463e0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-05_893da2fb9885b20fa08fbe62992463e0_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3296
- C:\Users\Admin\AppData\Local\Temp\demka.exe
  "C:\Users\Admin\AppData\Local\Temp\demka.exe"
  2⤵
  - Executes dropped EXE
  PID:4052

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
d230e08cd39fd5f6e9265c41c3af149e

SHA1
816c042b4bfe71d43f51060bc3e098e8b8e6cd83

SHA256
57c1ec4c22368974b4ab4572cffb1611763305a49c30618e06d131ac774d8a82

SHA512
b1b17b4c66cd1f5b309e8b0dc629c8216144cd7ffd82f012fd8ebad488be831caa071cfad5d912169ff394654b51d3621b294e4c51c057f8ee3731ef2e8b8795

Download Submit
memory/3296-0-0x0000000000780000-0x0000000000786000-memory.dmp

Filesize
24KB

Download
memory/3296-8-0x0000000000780000-0x0000000000786000-memory.dmp

Filesize
24KB

Download
memory/3296-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4052-25-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download