ca17327fb0d3fe1222764e59436e97d3203dfc41d124c22122e64435bacb707a

Analysis

max time kernel
143s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
03/02/2024, 05:42

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General

Target

2024-02-03_cfff32166dbddcaaea244c5fe03f54c4_cryptolocker.exe
Size

36KB
MD5

cfff32166dbddcaaea244c5fe03f54c4
SHA1

e60aa66410b6fb716835332b5b38dc9d103c2183
SHA256

ca17327fb0d3fe1222764e59436e97d3203dfc41d124c22122e64435bacb707a
SHA512

88263ee8c227848827b015427e9f218797c4b15af769ee603fccc25e16afd67e18b9ca736e789d8e14cb990b7976b0fd1e69830a5c72e365c86e47e87b2f3469
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzoiM8Nekdvjl9V50i3Nbyx:bAvJCYOOvbRPDEgXrNekd7l94i3pyx

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231e4-12.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-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation	2024-02-03_cfff32166dbddcaaea244c5fe03f54c4_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
1796	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 4164 wrote to memory of 1796	4164	2024-02-03_cfff32166dbddcaaea244c5fe03f54c4_cryptolocker.exe	84
PID 4164 wrote to memory of 1796	4164	2024-02-03_cfff32166dbddcaaea244c5fe03f54c4_cryptolocker.exe	84
PID 4164 wrote to memory of 1796	4164	2024-02-03_cfff32166dbddcaaea244c5fe03f54c4_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-03_cfff32166dbddcaaea244c5fe03f54c4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-03_cfff32166dbddcaaea244c5fe03f54c4_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4164
- 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:1796

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
36KB

MD5
224b69e7f65da72716afa911e7344fb0

SHA1
184873fdf6ef8c4bef6c8edc2983b1eff9ae20df

SHA256
7928f397d07d7c3cbba5d33a39748ea4c349cde65cbe36a69a2f0a9adc32be22

SHA512
79cd7921e0794157e0fd005ae305e4943399645a40aa0ade38875337441ce1e8a252a463cbe75cb07333188cd6beec06d69e5cc895d98f847002d68789813005

Download Submit
memory/1796-20-0x0000000001F90000-0x0000000001F96000-memory.dmp

Filesize
24KB

Download
memory/4164-0-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/4164-1-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/4164-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download