c6e68491ee813957ebe8d925f5843c36a50d716ae5ecce20e561e5dc08a236da

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
15/09/2024, 01:22

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General

Target

2024-09-15_1d95d963d5fc50d8e7d6649eb1e401a9_cryptolocker.exe
Size

41KB
MD5

1d95d963d5fc50d8e7d6649eb1e401a9
SHA1

eae8a49eafd4a9b883939b3398ab4880bb8fbbb1
SHA256

c6e68491ee813957ebe8d925f5843c36a50d716ae5ecce20e561e5dc08a236da
SHA512

432d390f2050fa065bba6bc08a2fd02e6c853dceba010e947dd0bd2ce05928fda8d180035b6d3c3aa3666dc4423142b42f81805948d773fc2580670c8b6328c1
SSDEEP

768:ba74zYcgT/EkdCQgpwXFXSqQXfj0xK8zL:ba6YcA/Xk3wXFXSqAJ8f

Score

7^/10

discovery upx

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	2024-09-15_1d95d963d5fc50d8e7d6649eb1e401a9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3040	hasfj.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4504-0-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral2/files/0x0008000000023465-13.dat	upx
behavioral2/memory/4504-17-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral2/memory/3040-26-0x0000000008000000-0x000000000800F000-memory.dmp	upx

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

System Information Discovery
T1082

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-15_1d95d963d5fc50d8e7d6649eb1e401a9_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hasfj.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4504 wrote to memory of 3040	4504	2024-09-15_1d95d963d5fc50d8e7d6649eb1e401a9_cryptolocker.exe	84
PID 4504 wrote to memory of 3040	4504	2024-09-15_1d95d963d5fc50d8e7d6649eb1e401a9_cryptolocker.exe	84
PID 4504 wrote to memory of 3040	4504	2024-09-15_1d95d963d5fc50d8e7d6649eb1e401a9_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-15_1d95d963d5fc50d8e7d6649eb1e401a9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-15_1d95d963d5fc50d8e7d6649eb1e401a9_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4504
- 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:3040

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
41KB

MD5
b3ddac36a0068e8c02f06632e5fafb18

SHA1
15a9f9e89f8b5dafbef9eea66e2283acd187a4c6

SHA256
7e03a54d8d71f9fc99b3b446ffc4b4b322eb28352e0407dcb1afb4f4a9dbc076

SHA512
ed0b6c59d66cee39b18e87634203682bd6e29d6eea9a21b8476639c9349889c06e1ab352a0c6ff11db223e0ea281414cbb65a23a7a3a5477de55a2d6c600aec8

Download Submit
memory/3040-25-0x00000000020A0000-0x00000000020A6000-memory.dmp

Filesize
24KB

Download
memory/3040-19-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/3040-26-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/4504-0-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/4504-1-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/4504-2-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/4504-3-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4504-17-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download