2e82a97d5d66d5ad76ab52e8cc583bb3c33997207220e815de29637d5a74f18b

Analysis

max time kernel
148s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05/08/2024, 10:58

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General

Target

dotnet/System.Collections.Immutable.dll
Size

584KB
MD5

00d0241cdce4e55ac3a801d1fb788c9a
SHA1

b6772d9dd3982652b6a2ce7b715a38ba8d2166b8
SHA256

21efb392eac8e650fc1cf24c2d65cddabef793889f1d847df105c70d03559b07
SHA512

b15c7a1cf9e3c10aba9202db37eb95a5e5a283cd852b506b4e14b0e3e40196689c8cb62176d43eff4c95699d07ef4bd3cddf245bdc4526bdac22983c42d82842
SSDEEP

12288:Pui6xNhQrAWLpc9IrlisNuUmdJQYhD7pMXz66M4cR1cuS9h5l3eA:PohQUWLpc9IhiiuUmdJQYhnpcwueA

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 3376 wrote to memory of 4164	3376	rundll32.exe	83
PID 3376 wrote to memory of 4164	3376	rundll32.exe	83
PID 3376 wrote to memory of 4164	3376	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\dotnet\System.Collections.Immutable.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3376
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\dotnet\System.Collections.Immutable.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4164

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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