General

  • Target

    Bootstrapper_v2.14.exe

  • Size

    2.9MB

  • Sample

    250115-283s2a1jbm

  • MD5

    ec429587b94b0288039bf1492e3350af

  • SHA1

    acfd0ea4f9d321a898fed79e2e8e41e04620625b

  • SHA256

    c372c94338eaaa7ab2eb7c5b6d1c9fc5658ec62da7f5fcd04e2d4c72d900ea9f

  • SHA512

    79090e46a9f6e2cc4728aa4cb5e48eab80d18151ae3257cbede4d685b80d40b56e2ef57a4ab37ddf90ccd67e5cd54a728f559fcf9fc32c6971bb88468c1ec88d

  • SSDEEP

    49152:wlcyXfHnaBTof9ePCjkIAm1skqXfd+/9A9ByClY1v/a/ehH7pNLLn2:6ZXfHaFoCIvqkqXf0FglY1XOe97vLn

Malware Config

Targets

    • Target

      Bootstrapper_v2.14.exe

    • Size

      2.9MB

    • MD5

      ec429587b94b0288039bf1492e3350af

    • SHA1

      acfd0ea4f9d321a898fed79e2e8e41e04620625b

    • SHA256

      c372c94338eaaa7ab2eb7c5b6d1c9fc5658ec62da7f5fcd04e2d4c72d900ea9f

    • SHA512

      79090e46a9f6e2cc4728aa4cb5e48eab80d18151ae3257cbede4d685b80d40b56e2ef57a4ab37ddf90ccd67e5cd54a728f559fcf9fc32c6971bb88468c1ec88d

    • SSDEEP

      49152:wlcyXfHnaBTof9ePCjkIAm1skqXfd+/9A9ByClY1v/a/ehH7pNLLn2:6ZXfHaFoCIvqkqXf0FglY1XOe97vLn

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Boot or Logon Autostart Execution: Active Setup

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

    • Downloads MZ/PE file

    • Event Triggered Execution: Image File Execution Options Injection

    • Checks BIOS information in registry

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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • 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

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Network Share Discovery

      Attempt to gather information on host network.

    • Checks system information in the registry

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

    • Drops file in System32 directory

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks