Overview

overview

8

Static

static

TencentMee...sh.exe

windows7_x64

8

TencentMee...sh.exe

windows10-2004_x64

8

Sharing

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General

  • Target

    TencentMeeting_0300000000_3.7.9.426.publish.exe

  • Size

    148.1MB

  • Sample

    220526-nnnlqaehcr

  • MD5

    fe7d7cb3026cb7e537b947964cabd2c1

  • SHA1

    c22094f75eb5c03fd53269c4deefafb26df58b0c

  • SHA256

    faf0b906501ec9fd41ba46a920055eed58ff6fa5ef227e1feb42fb66bbf23ec1

  • SHA512

    b3f257e60dae651a8d547ac16a87c4aa5a58f07b0aea0c536b6a5abe0b9d4e8f14d135097a380819e58d555eb7b2fa31565bc9ba263a23468032da5085adda41

Score
8/10
bootkitdiscoverypersistence

Malware Config

Targets

    • Target

      TencentMeeting_0300000000_3.7.9.426.publish.exe

    • Size

      148.1MB

    • MD5

      fe7d7cb3026cb7e537b947964cabd2c1

    • SHA1

      c22094f75eb5c03fd53269c4deefafb26df58b0c

    • SHA256

      faf0b906501ec9fd41ba46a920055eed58ff6fa5ef227e1feb42fb66bbf23ec1

    • SHA512

      b3f257e60dae651a8d547ac16a87c4aa5a58f07b0aea0c536b6a5abe0b9d4e8f14d135097a380819e58d555eb7b2fa31565bc9ba263a23468032da5085adda41

    Score
    8/10
    bootkitdiscoverypersistence

    • Executes dropped EXE

    • Registers COM server for autorun

      persistence

    • Checks computer location settings

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

    • Loads dropped DLL

    • Modifies file permissions

      discovery

    • Checks installed software on the system

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

      discovery

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks