71185f7e1ef8edb72fcbd6532fb9741c58a29df342ba4ccba98fdd4d2b571557

Analysis

max time kernel
147s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09/04/2024, 16:12

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General

Target

2024-04-08_30158bcc4f0652945d4ad0270804bd70_cryptolocker.exe
Size

40KB
MD5

30158bcc4f0652945d4ad0270804bd70
SHA1

02c2178cef1815e7ceae75dba6fb3b9ed9cf0b9c
SHA256

71185f7e1ef8edb72fcbd6532fb9741c58a29df342ba4ccba98fdd4d2b571557
SHA512

93c8766c0a853da392d1e679a80c2de8eb2b30b72bdb055e5694b9cedda2682fac4e865ab324b5c9f61c482a31b4138545446b2765a6c9448e0044a0318d57a8
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzoiM8Nekdvjl9V50i3Nby6UsC:bAvJCYOOvbRPDEgXrNekd7l94i3py/yW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023218-12.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-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation	2024-04-08_30158bcc4f0652945d4ad0270804bd70_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
1472	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 1856 wrote to memory of 1472	1856	2024-04-08_30158bcc4f0652945d4ad0270804bd70_cryptolocker.exe	88
PID 1856 wrote to memory of 1472	1856	2024-04-08_30158bcc4f0652945d4ad0270804bd70_cryptolocker.exe	88
PID 1856 wrote to memory of 1472	1856	2024-04-08_30158bcc4f0652945d4ad0270804bd70_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-04-08_30158bcc4f0652945d4ad0270804bd70_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-08_30158bcc4f0652945d4ad0270804bd70_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1856
- 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:1472

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
40KB

MD5
98c05ed0e0e175e8a379c3c17ef6c817

SHA1
743d0444752de81088712c90c9999c5fb902a563

SHA256
af01f8dd21b1c2285d7d7d3c14260c9949010c84f7e28f260c7f7b0b122368f2

SHA512
b91c2b110b1b171eb4f580762f261836a46b101439fc3bb20e5dc400a578a9db3c68946cedb43d4b37d1b4700d5de67b5d1c4ba8e6d61f42df7b06ef3b25f677

Download Submit
memory/1472-21-0x0000000002010000-0x0000000002016000-memory.dmp

Filesize
24KB

Download
memory/1856-0-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/1856-1-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/1856-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download