Overview

overview

7

Static

static

1

Lark-win32...ed.exe

windows7-x64

7

Lark-win32...ed.exe

windows10-2004-x64

1

Sharing

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General

  • Target

    Lark-win32_ia32-6.0.6-signed.exe

  • Size

    210.9MB

  • Sample

    230331-y946psee61

  • MD5

    755e36e52e4c324bdf1a962614d54c40

  • SHA1

    c9acaa99cd3e23f2e01a2122188ed3751f17bac5

  • SHA256

    d96b7f1321f151c7fe1d3f66d650a574b688ce5e5e6bbc131d307f91c2d70775

  • SHA512

    698032e8e77ee20e59517ac0d5aacb9385dee7ef99fa7101d5375d3d5a167103e8c4c1b4246f6eacaf59a8a8d93db552bc99530ba653ef089bd8df68d6f2e7f3

  • SSDEEP

    6291456:FAVjRpHi7GnMqP6pNYTw1rZt+kXVLlWvsRUM13:FAhRE7GnGictg4pWM13

Score
7/10
discoverypersistence

Malware Config

Targets

    • Target

      Lark-win32_ia32-6.0.6-signed.exe

    • Size

      210.9MB

    • MD5

      755e36e52e4c324bdf1a962614d54c40

    • SHA1

      c9acaa99cd3e23f2e01a2122188ed3751f17bac5

    • SHA256

      d96b7f1321f151c7fe1d3f66d650a574b688ce5e5e6bbc131d307f91c2d70775

    • SHA512

      698032e8e77ee20e59517ac0d5aacb9385dee7ef99fa7101d5375d3d5a167103e8c4c1b4246f6eacaf59a8a8d93db552bc99530ba653ef089bd8df68d6f2e7f3

    • SSDEEP

      6291456:FAVjRpHi7GnMqP6pNYTw1rZt+kXVLlWvsRUM13:FAhRE7GnGictg4pWM13

    Score
    7/10
    discoverypersistence

    • 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
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks