7d2c4ebafd3c3d7029f0c8e6a18553753705d345d1227f5bbc8b3033989869b9

Analysis

max time kernel
142s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
23-05-2024 01:23

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General

Target

2024-05-23_2e0ce2a84c6fd15483c7295a8e0fe413_cryptolocker.exe
Size

37KB
MD5

2e0ce2a84c6fd15483c7295a8e0fe413
SHA1

cd706c558306dd49296901de471b8c5bb5f2f33b
SHA256

7d2c4ebafd3c3d7029f0c8e6a18553753705d345d1227f5bbc8b3033989869b9
SHA512

776b77de9f0d006e20fc929ea37851cc0cba6b484dbef57d5e1856024d42d9176009984bf7940bdcc5b6ebaed16660721ea84e9dd81cd34efdd71eef08011093
SSDEEP

768:bAvJCYOOvbRPDEgXrNekd7l94i3pQheDIr:bAvJCF+RQgJeab4sbW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\demka.exe	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

Processes:

2024-05-23_2e0ce2a84c6fd15483c7295a8e0fe413_cryptolocker.exedemka.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-05-23_2e0ce2a84c6fd15483c7295a8e0fe413_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

Processes:

demka.exe

pid process

4528 demka.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4528	demka.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-05-23_2e0ce2a84c6fd15483c7295a8e0fe413_cryptolocker.exe

description	pid	process	target process
PID 4016 wrote to memory of 4528	4016	2024-05-23_2e0ce2a84c6fd15483c7295a8e0fe413_cryptolocker.exe	demka.exe
PID 4016 wrote to memory of 4528	4016	2024-05-23_2e0ce2a84c6fd15483c7295a8e0fe413_cryptolocker.exe	demka.exe
PID 4016 wrote to memory of 4528	4016	2024-05-23_2e0ce2a84c6fd15483c7295a8e0fe413_cryptolocker.exe	demka.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-23_2e0ce2a84c6fd15483c7295a8e0fe413_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_2e0ce2a84c6fd15483c7295a8e0fe413_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4016

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:4528

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
e2b36c8771620e324e4cc9018cd56a4a

SHA1
77f6a097306ca43998cedd006a0a00f40b295282

SHA256
e0f7e3ef1821121f0954db99f72f53b87a8a0e65d434e1b064192577c5f9e570

SHA512
ca9a15a039a57ab0110103a044d15f7950a21d55c7b6f2584799c9e27a445513fe14fd2cf8b35b3d66362d7ec9b4b959e823e17dea1f62974681c2c8c95b3704

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

Filesize
186B

MD5
c724dfdd1a4257b2591b75c610fd25d5

SHA1
7430194a61f1a51ad6910c99d9a7592e46745c51

SHA256
dc427953f2f3c224f99cb36127310e61cc2a3f33b34357f24127a2b11f388cde

SHA512
c4bfd0b20171c0b3ca1efcaa24e84a7d541cb6b6dbf9359960febc67ad7d1e79f5996deca9f754c153b4e4d197be31a4e6c4d981c6052d579c96c390127545ec

Download Submit
memory/4016-0-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/4016-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4016-8-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/4528-25-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download