Resubmissions

12/08/2026, 19:03

260812-xqh9fstale

11/08/2026, 22:59

260811-2yf7aahb9310

General

  • Target
    Retrac_3.0.8_x64_en-US.msi
  • Size 14.4MB
  • Sample260811-2yf7aahb93
  • SHA256 f25ac4aed0f36abdb2f0ea2cdb67e4249d7d70467718f718445559cf4e0ffd89
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      Retrac_3.0.8_x64_en-US.msi
    • Size 14.4MB
    • SHA256 f25ac4aed0f36abdb2f0ea2cdb67e4249d7d70467718f718445559cf4e0ffd89
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies RDP port number used by Windows

    • Patched UPX-packed file

      Sample is packed with UPX but required header fields are zeroed out to prevent unpacking with the default UPX tool.

    • Sets service image path in registry

      This determines the executable launched when a service starts. It can be used to establish persistence.

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Impair Defenses: Safe Mode Boot

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Badlisted process makes network request

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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • 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.

    • Network Share Discovery

      Attempt to gather information on host network.

    • ConfuserEx .NET packer

      Detects ConfuserEx .NET packer.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks