Extracted

• • Target

    d4e23f334c0ff5630ad00e50022e77ca6b05defdddc0a8fde8d3725d83b4611b

  • Size

    5.0MB

  • MD5

    dad016742692ade0afeb5a49aa446305

  • SHA1

    d9fd064eba67672aa036cfc65660deaa37af52b8

  • SHA256

    d4e23f334c0ff5630ad00e50022e77ca6b05defdddc0a8fde8d3725d83b4611b

  • SHA512

    fec50722d50b147cec0b6e0fb62f290113bcb1bf5723741a8a2d27ef5520f67db28ecff919956b140a7e17fdf74456f8d53255451ecaaf36f0230739884595e7

  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