64c9978038dfee20335657058b596808fefc1b5eae6129d42a6de6b7162f9282

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
22-05-2024 19:04

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-22_2d2eee849603bdbcf84fe4ab78b0c945_cryptolocker.exe
Size

37KB
MD5

2d2eee849603bdbcf84fe4ab78b0c945
SHA1

be392f79e2f446c4760d09785660721435b22b8a
SHA256

64c9978038dfee20335657058b596808fefc1b5eae6129d42a6de6b7162f9282
SHA512

32a5c5bd6e28b98e6ec2be09736df4b9843db792e3359dbccbef00b44dda963bd71dff00b1565f73b84c4c05cd4b5ce545e0974707d0cc31d1aa032878da8139
SSDEEP

768:bAvJCYOOvbRPDEgXrNekd7l94i3pQheDIF:bAvJCF+RQgJeab4sb8

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:

2024-05-22_2d2eee849603bdbcf84fe4ab78b0c945_cryptolocker.exedemka.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	2024-05-22_2d2eee849603bdbcf84fe4ab78b0c945_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

Processes:

demka.exe

pid process

3260 demka.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3260	demka.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-05-22_2d2eee849603bdbcf84fe4ab78b0c945_cryptolocker.exe

description	pid	process	target process
PID 5000 wrote to memory of 3260	5000	2024-05-22_2d2eee849603bdbcf84fe4ab78b0c945_cryptolocker.exe	demka.exe
PID 5000 wrote to memory of 3260	5000	2024-05-22_2d2eee849603bdbcf84fe4ab78b0c945_cryptolocker.exe	demka.exe
PID 5000 wrote to memory of 3260	5000	2024-05-22_2d2eee849603bdbcf84fe4ab78b0c945_cryptolocker.exe	demka.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_2d2eee849603bdbcf84fe4ab78b0c945_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_2d2eee849603bdbcf84fe4ab78b0c945_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5000
- 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:3260

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

Loading Replay Monitor...

Downloads

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

Filesize
37KB

MD5
4c4b29af63380b208436c40ae6e6d1ba

SHA1
9489bd7708bca2e1e69f12d1699ef5da09a84e01

SHA256
4de33e5bacecb89b8d00a247bbda8b0bcb728e3f19cc8ad2a8ebfe5c3bd56943

SHA512
3038130963471722c5bbca68cd76f2e2fe4de3f0884bd1abee4d6e66ecd35cef402f8516e2a03a7c27d34e38b4a51ab5d8e9d42c4ab71db805222343cc8967b8

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

Filesize
186B

MD5
bda887fdd08bc86447aee8a166fbe59a

SHA1
08da2f7f71e3d29a15f6f5025e75022591482cd8

SHA256
8d01631eb605003cb21a745a403d13fe51e1a79c69eb3ef6c7a7d14b3d8d9d89

SHA512
4ebb7248997cccd7ae25a2e08975b3e667f3ef298f308a1e6f70a6b6242a5b2879c8ef359e5c00e9dddd156cc28cc31d5be89dd82aca0fc604fae2f911ae1cf8

Download Submit
memory/3260-25-0x00000000020A0000-0x00000000020A6000-memory.dmp

Filesize
24KB

Download
memory/5000-0-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/5000-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/5000-8-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download