Extracted

• • Target

    08a384b9655fb403506ef9a621d2fa01.exe

  • Size

    4.3MB

  • MD5

    08a384b9655fb403506ef9a621d2fa01

  • SHA1

    b6b977dbc86b6929646e8a0b0bb77b6768b124f9

  • SHA256

    c2748f872784ed3b7b9b2c51993d861a5283d3ca17579d367149031b2e479d82

  • SHA512

    71b462a33c601cabfbb9ddd9b650d8673b9ed06c9daedc955a1e1f112754be90ddf406c422a75b25fe86f7cf83ba9246ab7ab6386866e99b4134e0dc83f412c1

  Score

  10^/10

  servhelperbackdoordiscoveryexploitpersistencetrojanupx

  • ServHelper

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

    trojanbackdoorservhelper

  • Core1 .NET packer

    Detects packer/loader used by .NET malware.

  • 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

  • Deletes itself

  • Loads dropped DLL

  • Modifies file permissions

    discovery

  • Uses the VBS compiler for execution

  • Drops file in System32 directory

  • Suspicious use of SetThreadContext

  behavioral1behavioral2