fc72dc250b7b2a6f7ba62c06581c0725b71e0a0a1816679e035120cf09f51f3c

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
04/06/2024, 21:30

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General

Target

2024-06-04_4ce5333b07cb00bec94670a85335ed5b_cryptolocker.exe
Size

31KB
MD5

4ce5333b07cb00bec94670a85335ed5b
SHA1

c4aee82999fe593dde64b011ddaa964f909a2f81
SHA256

fc72dc250b7b2a6f7ba62c06581c0725b71e0a0a1816679e035120cf09f51f3c
SHA512

6f1795c33c1ccf2d3c130c6879afd6e4ea17fb5f4603e6d87b4a2ad8bba411e09ad312cde4aaa19d4a7393d1d2fb9fc77e633259c3ff91221f2879e76f7671f8
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6cJ3vdM:bAvJCYOOvbRPDEgXRcJK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a0000000233c0-12.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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-06-04_4ce5333b07cb00bec94670a85335ed5b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1968	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 3956 wrote to memory of 1968	3956	2024-06-04_4ce5333b07cb00bec94670a85335ed5b_cryptolocker.exe	85
PID 3956 wrote to memory of 1968	3956	2024-06-04_4ce5333b07cb00bec94670a85335ed5b_cryptolocker.exe	85
PID 3956 wrote to memory of 1968	3956	2024-06-04_4ce5333b07cb00bec94670a85335ed5b_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-06-04_4ce5333b07cb00bec94670a85335ed5b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-04_4ce5333b07cb00bec94670a85335ed5b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3956
- C:\Users\Admin\AppData\Local\Temp\demka.exe
  "C:\Users\Admin\AppData\Local\Temp\demka.exe"
  2⤵
  - Executes dropped EXE
  PID:1968

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
31KB

MD5
02fb5f340e578c9cf1dcff27d727ef06

SHA1
a5827d9b9a2ae26444d7c822d8fc065ccda13652

SHA256
c369cf1e46f71bdb61f8669fea184ecce73bb21b12b1691c2536d1239be58cee

SHA512
634dbea3c68772eeb1164b65e18534710c40b9b166bd1ea6a6ad73267a6472b92cce5e917666e069b7f8c122d2f85e376ecbdff304573f16062efb376235f924

Download Submit
memory/1968-25-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/3956-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3956-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3956-8-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download