4ac35deda035f53f01b2251da7694705b5d62791c7666a2c56846f9978f553fd

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
11/06/2024, 02:25

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General

Target

2024-06-11_3a6e0314923a150a15f40de7679c9931_cryptolocker.exe
Size

33KB
MD5

3a6e0314923a150a15f40de7679c9931
SHA1

7aaa1804e5ad42789390dadbe16a3f5265e5c973
SHA256

4ac35deda035f53f01b2251da7694705b5d62791c7666a2c56846f9978f553fd
SHA512

ca29143b3caf48aa8fe852630868e5edf47aeae715b6ac591f65433bbae4f3119bc72a999a2531c3daeb8c9f2a796769f1c855a7a7a85198aa09eae10b65d808
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6cJ3v7TIVU:bAvJCYOOvbRPDEgXRcJCU

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002327d-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-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation	2024-06-11_3a6e0314923a150a15f40de7679c9931_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
2356	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 2444 wrote to memory of 2356	2444	2024-06-11_3a6e0314923a150a15f40de7679c9931_cryptolocker.exe	81
PID 2444 wrote to memory of 2356	2444	2024-06-11_3a6e0314923a150a15f40de7679c9931_cryptolocker.exe	81
PID 2444 wrote to memory of 2356	2444	2024-06-11_3a6e0314923a150a15f40de7679c9931_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-06-11_3a6e0314923a150a15f40de7679c9931_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-11_3a6e0314923a150a15f40de7679c9931_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2444
- 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:2356

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
33KB

MD5
00c78cc62f859d5ddfb386c073d59a13

SHA1
13dd83f9a7ef3114dfdb74da8fd7e874be42b8b8

SHA256
e3ca93635f1698c47991bca697d5c73a7b6a11682c3a40e80feaeae8ae64eb5e

SHA512
0a367a7cb03751630ba363df5049e0fc8b746448f456309c7bf6f37cc9dfe38c8bca958e1f412f7afe3c39deeb224091686da4aaabab6f25f7c7cd8bb5b74728

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

Filesize
186B

MD5
ecbf6c31cb31cde6fe5c8c2d20451196

SHA1
1ce8c690f5c0f6ef7e700af7e9434456213bd57a

SHA256
d1318f490f295a997972f0aebe9e630fd6e3c178e3652839edff2caae9d64c04

SHA512
a95ea69db8a90810c8743b077884e920f7b98b6fbce5ca14c57e86181df3f4b62717c6da2c518a24bab475446a7a711389055763cac9acbcc5557d11a5c7a8ea

Download Submit
memory/2356-25-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/2444-0-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/2444-8-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/2444-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download