112fc90036d2070faeea5e6a30b901227a9dac460c798df22fdaec0210b02566

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-11-2024 06:23

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General

Target

2024-11-02_bc7225f5bbf534599e2221d131b9faa6_cryptolocker.exe
Size

35KB
MD5

bc7225f5bbf534599e2221d131b9faa6
SHA1

9e8dc81bb4e89531a37e746e1becf00e22ec2fbf
SHA256

112fc90036d2070faeea5e6a30b901227a9dac460c798df22fdaec0210b02566
SHA512

aa3b7fb9348d1ec7fe4035542e94f867a8846506d2c327694cd8894bda3d0b1510a875434761687a15f72a1d35a88a4bb3e57068db803502ea9eadae961375ff
SSDEEP

384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGXvJF3O44:bG74zYcgT/Ekd0ryfjkbE

Score

7^/10

discovery

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

2024-11-02_bc7225f5bbf534599e2221d131b9faa6_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	2024-11-02_bc7225f5bbf534599e2221d131b9faa6_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

hasfj.exe

pid process

4788 hasfj.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4788	hasfj.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

2024-11-02_bc7225f5bbf534599e2221d131b9faa6_cryptolocker.exehasfj.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-02_bc7225f5bbf534599e2221d131b9faa6_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hasfj.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-11-02_bc7225f5bbf534599e2221d131b9faa6_cryptolocker.exe

description	pid	process	target process
PID 2812 wrote to memory of 4788	2812	2024-11-02_bc7225f5bbf534599e2221d131b9faa6_cryptolocker.exe	hasfj.exe
PID 2812 wrote to memory of 4788	2812	2024-11-02_bc7225f5bbf534599e2221d131b9faa6_cryptolocker.exe	hasfj.exe
PID 2812 wrote to memory of 4788	2812	2024-11-02_bc7225f5bbf534599e2221d131b9faa6_cryptolocker.exe	hasfj.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-02_bc7225f5bbf534599e2221d131b9faa6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-02_bc7225f5bbf534599e2221d131b9faa6_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2812

C:\Users\Admin\AppData\Local\Temp\hasfj.exe
"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4788

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
35KB

MD5
3839c9e3416747932c9f01164868cb7c

SHA1
66239ffb97fc93574f966c6cc75520da4a6ce9e4

SHA256
51cf5a21941751e06ae74275fa740c32937236795c4c185a0b56b15fa6ae6d2b

SHA512
c02d9b7751a6dbb695b992b5759f050e72ae4f3a8631f23c2b9fb961041ea884b2412e7f8051aeba5ab3fcc9c08bbdb8927c9af5c0c15c3c2dfee9e3a93835ed

Download Submit
memory/2812-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2812-1-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/2812-2-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/2812-3-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/2812-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/4788-19-0x00000000020C0000-0x00000000020C6000-memory.dmp

Filesize
24KB

Download
memory/4788-25-0x0000000002010000-0x0000000002016000-memory.dmp

Filesize
24KB

Download
memory/4788-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download