Overview

overview

10

Static

static

3

43a5e55b12...b4.exe

windows7-x64

9

43a5e55b12...b4.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    43a5e55b1251affee0cf7494ac9c63b4

  • Size

    4.3MB

  • Sample

    231222-bn6q3sbfep

  • MD5

    43a5e55b1251affee0cf7494ac9c63b4

  • SHA1

    4a53bd2c188cf869b2a81b047940faf1ea03e1cb

  • SHA256

    e2b372effc4c426a1e63d2629bd565eabeeaf042b9e0aea11701e09f42921a3c

  • SHA512

    f1dde143fd0be1242a6d211770a60574929283e953262459f9898ac7822e0652aa7fe323fe1e3af36a6082587d36382e7e42d5a4dee74a111800027085e40343

  • SSDEEP

    98304:pkucM0/VMuGOcsqLpBX1P3Xhm6SrnsQ2BUotyFoAqae:EM0/COsX1k6AnsFBUQyFoAq

Score
10/10
servhelperbackdoordiscoveryexploitpersistencetrojan

Malware Config

Targets

    • Target

      43a5e55b1251affee0cf7494ac9c63b4

    • Size

      4.3MB

    • MD5

      43a5e55b1251affee0cf7494ac9c63b4

    • SHA1

      4a53bd2c188cf869b2a81b047940faf1ea03e1cb

    • SHA256

      e2b372effc4c426a1e63d2629bd565eabeeaf042b9e0aea11701e09f42921a3c

    • SHA512

      f1dde143fd0be1242a6d211770a60574929283e953262459f9898ac7822e0652aa7fe323fe1e3af36a6082587d36382e7e42d5a4dee74a111800027085e40343

    • SSDEEP

      98304:pkucM0/VMuGOcsqLpBX1P3Xhm6SrnsQ2BUotyFoAqae:EM0/COsX1k6AnsFBUQyFoAq

    Score
    10/10
    discoveryexploitservhelperbackdoorpersistencetrojan

    • ServHelper

      ServHelper is a backdoor written in Delphi and is associated with the hacking group TA505.

      trojanbackdoorservhelper

    • Grants admin privileges

      Uses net.exe to modify the user's privileges.

    • Modifies RDP port number used by Windows

    • Possible privilege escalation attempt

      exploit

    • Sets DLL path for service in the registry

      persistence

    • Modifies file permissions

      discovery

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks