Extracted

• • Target
    2026-07-03_99830b57e8cd229dd4c3a64081d16ef8_cobalt-strike_glassworm
  • Size 6.0MB
  • SHA256 454ad83a92d56735710cd7ffa51420a53f70198b4555e26931a093f920351b1e
  • MD5 99830b57e8cd229dd4c3a64081d16ef8
  • SHA1 088731e527b8b6d8f98d796eb3e1967ea3792b58
  • SHA512 d5e4bb58071851b955231ba764f5bbd765e3521f60cb65397193dc29c532917f46e57ca7999c18a15046f6b2c21e20069e63c770aef45eff60407c53988dd234
  • SSDEEP 49152:Hb5a6QRgmxyR5Dv6PdN7L8K5uqNHr+psEwoR3BCd7FAja5g5rd5JKYXFX51Chbh5:HU6QRHyu
  • TLSH
    T1DB56E012BCE218FAC57AE130845A97A27A713CA483357BD72FD475AA1A74FD02B3D314
  • MD5 SHA1 SHA512 SSDEEP TLSH

  Score

  10^/10

  backdoordefense_evasiondiscoveryexecutionexploitservhelperlateral_movementpersistencetrojanupxadwareransomwarespyware

  • Family: ServHelper

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

    trojanbackdoorservhelper

  • Detects executables manipulated with Fody

  • Grants admin privileges

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

  • Remote Service Session Hijacking: RDP Hijacking

    Adversaries may hijack a legitimate user's remote desktop session to move laterally within an environment.

    lateral_movement

  • Badlisted process makes network request

    Network request originating from process or tool commonly abused by malware.

  • Boot or Logon Autostart Execution: Active Setup

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence

  • Indicator Removal: Network Share Connection Removal

    Adversaries may remove share connections that are no longer useful in order to clean up traces of their operation.

    defense_evasion

  • Modifies RDP port number used by Windows

  • Possible privilege escalation attempt

    exploit

  • Server Software Component: Terminal Services DLL

    persistence

  • Loads dropped DLL

  • Modifies file permissions

    discovery

  • Contacts third-party web service commonly abused for C2

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Enumerates connected drives

    Attempts to read the root path of hard drives other than the default C: drive.

  • Indicator Removal: File Deletion

    Adversaries may delete files left behind by the actions of their intrusion activity.

    defense_evasion

  • Drops file in System32 directory

  • UPX packed file

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

    upx
  behavioral1behavioral2