9408d69937bb68428acbee3ff4bf4fb32edf3c0afa042fe0a61fac7da10f7976

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
24/05/2024, 01:41

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General

Target

2024-05-24_ccffdc1c6a141ad3b4215ecbda7b1a31_cryptolocker.exe
Size

43KB
MD5

ccffdc1c6a141ad3b4215ecbda7b1a31
SHA1

17c0610c8668934450171747890eb3ea7d539774
SHA256

9408d69937bb68428acbee3ff4bf4fb32edf3c0afa042fe0a61fac7da10f7976
SHA512

c8c93933e57222ecabde45d69f8f796d314c52cd43e4bd84b3b5162664aba3dcf4cd55c36c5508c82524f1915723f8b2fa21f4c55dd4d46dbcbe8c55d725d108
SSDEEP

768:bAvJCYOOvbRPDEgXrNekd7l94i3py/yY/J6:bAvJCF+RQgJeab4sy/lA

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022f51-12.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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-05-24_ccffdc1c6a141ad3b4215ecbda7b1a31_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
2872	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 1164 wrote to memory of 2872	1164	2024-05-24_ccffdc1c6a141ad3b4215ecbda7b1a31_cryptolocker.exe	82
PID 1164 wrote to memory of 2872	1164	2024-05-24_ccffdc1c6a141ad3b4215ecbda7b1a31_cryptolocker.exe	82
PID 1164 wrote to memory of 2872	1164	2024-05-24_ccffdc1c6a141ad3b4215ecbda7b1a31_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-24_ccffdc1c6a141ad3b4215ecbda7b1a31_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-24_ccffdc1c6a141ad3b4215ecbda7b1a31_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1164
- 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:2872

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
43KB

MD5
d79269d54a8e6b561464f121c66d6e5c

SHA1
aaeec8106998f5b63f229756134ce51382ba9ecd

SHA256
066320fea11254193ed8e6ebdb5e4313034a4fcc977bc7d2090319df8f2e1c3f

SHA512
583fdf547116183e423385ba1c6a85d9df353c8bddce86ccfdbbac5b614139fad4718330748633b0aa090fdb22bbf3120ddf488e6022d684e8a6d4f956169881

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

Filesize
186B

MD5
29b947b1e8a0b29883a7a6b8f514680c

SHA1
6c647ea87f9edd512231fac88ad4df8fe735d2f7

SHA256
fab52f83f69c857f0baef5545a8b81e6ea74fa3d226484b023ddb97047fc62ce

SHA512
9af40a260e11c6bb845a7dccf22be8b4ccc9444003316c457efb953b9f6ae0821a4025abc52bb264b11eeb22a8ec8ca31620ea93328b8fa81df861233e412c0b

Download Submit
memory/1164-0-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download
memory/1164-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1164-8-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download
memory/2872-25-0x0000000002010000-0x0000000002016000-memory.dmp

Filesize
24KB

Download