Overview

overview

9

Static

static

1

URLScan

urlscan

1

https://nightly.link...

windows10-2004-x64

9

Sharing

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General

  • Target

    https://nightly.link/SourMesen/Mesen2/workflows/build/master/Mesen%20%28Windows%29.zip

  • Sample

    230707-pvlldaab8y

Score
9/10
coreentitydiscoverypersistence

Malware Config

Targets

    • Target

      https://nightly.link/SourMesen/Mesen2/workflows/build/master/Mesen%20%28Windows%29.zip

    Score
    9/10
    coreentitydiscoverypersistence

    • CoreEntity .NET Packer

      A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

      coreentity

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    behavioral1

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

4
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks