Extracted

• • Target

    b46a19568e377c2e413e2b6ac5afce64e2491cf5ef10509af3ef08d1a59d416d

  • Size

    3.4MB

  • MD5

    7828a5c6e3657985e9225aa6a368bb0d

  • SHA1

    3985616152a24f2d7f2007114a7c4d8894b26719

  • SHA256

    b46a19568e377c2e413e2b6ac5afce64e2491cf5ef10509af3ef08d1a59d416d

  • SHA512

    1a958f81002e54c1aae856d159eecb04cf01a0940c89bfabb672b877b9aa735c6239ff322a79baf042b4f42b7d11629c1ea8cab7e735d1ab95e4840f6229bfd1

  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

  • 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

  • Loads dropped DLL

  • Modifies file permissions

    discovery

  • Legitimate hosting services abused for malware hosting/C2

  • Drops file in System32 directory

  behavioral1behavioral2