Extracted

• • Target

    0533044b6e65dbe2c84f78e43a37a0a0

  • Size

    5.7MB

  • MD5

    0533044b6e65dbe2c84f78e43a37a0a0

  • SHA1

    0513796322ed3364335eb9c47faad3324ff162fc

  • SHA256

    57bd1d7a3ce9a10797575f75af56a675b3739ab5901e383a7870b17fa328ecb4

  • SHA512

    b2dca40a006af96fdb10adc20d9ae8bdb4f3d47d7b179ffd2f3598b9ef8ffe940fc0145f438694ca2b9950c09cd625609824506bdc191ee9077116749406c6d6

  Score

  10^/10

  servhelperbackdoordiscoveryexploitpersistencetrojanupx

  • 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.

  • Blocklisted process makes network request

  • Executes dropped EXE

  • Modifies RDP port number used by Windows

  • Possible privilege escalation attempt

    exploit

  • Sets DLL path for service in the registry

    persistence

  • UPX packed file

    Detects executables packed with UPX/modified UPX open source packer.

    upx

  • Deletes itself

  • Loads dropped DLL

  • Modifies file permissions

    discovery

  • Drops file in System32 directory

  • Suspicious use of SetThreadContext

  behavioral1behavioral2