303be7260ad8330508e98c77c51cc47c0c27a609f65b7aeff3444bf9f6062bd0

Analysis

max time kernel
95s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01/09/2024, 17:11

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

CalendarExt.dll
Size

356KB
MD5

c17467514fc9788c65b6b4105c1f6f6b
SHA1

3e8dbc3cf0db6fba94cf6723bace96a372fb8619
SHA256

081a891776ba3fe26108c3d3bbd5aa7b6736a3bfbe0cbb6ecdc1344fbc55c10c
SHA512

e1e9cee20d900ed89270464a61c3624cb8ff8d4e63dbf83ef42f37203a759eb313844ad3541d044162171a29015e16213f6139a17d860fcd6baa1a0171b20b82
SSDEEP

6144:xrnZwuUVuRKx7LfkYKB8nqF9HKWEuA40VgLwAnpddu:PwuUswcYQiAHKWE7VgM+ddu

Score

3^/10

discovery

Malware Config

Signatures

System Location Discovery: System Language Discovery 1 TTPs 1 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	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5116 wrote to memory of 4556	5116	rundll32.exe	85
PID 5116 wrote to memory of 4556	5116	rundll32.exe	85
PID 5116 wrote to memory of 4556	5116	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\CalendarExt.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5116
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\CalendarExt.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4556

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

Loading Replay Monitor...