Resubmissions

02/09/2021, 16:57

210902-vgpzjadhhn10

02/09/2021, 16:25

210902-tw1h5sage410

02/09/2021, 11:31

210902-9dk89x9wb210

14/08/2021, 13:56

210814-xdxpv1yk2x10

General

  • Target
    472208d7ba18d4c14b7e90b9db5d6feb
  • Size 5.9MB
  • Sample210814-xdxpv1yk2x
  • SHA256 ae1c9d454905ed43654f99b1ea1e8ecc3ae08eb75c3860f46b285ce724ae5e4d
  • MD5 SHA1 SHA512

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • ps1.dropper

    https://raw.githubusercontent.com/sqlitey/sqlite/master/speed.ps1

Targets

    • Target
      472208d7ba18d4c14b7e90b9db5d6feb
    • Size 5.9MB
    • SHA256 ae1c9d454905ed43654f99b1ea1e8ecc3ae08eb75c3860f46b285ce724ae5e4d
    • MD5 SHA1 SHA512
    • ServHelper

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

    • 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

    • Sets DLL path for service in the registry

    • UPX packed file

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

    • Loads dropped DLL

    • Modifies file permissions

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v6

Tasks