General

  • Target

    0a7b9a3a120d129f53edd0c6fa2564b2_JaffaCakes118

  • Size

    5.7MB

  • Sample

    241002-nvvnlsyapc

  • MD5

    0a7b9a3a120d129f53edd0c6fa2564b2

  • SHA1

    062f9ab3533df764cebb4df4e09c15b0a154a977

  • SHA256

    c767c0c438dd1a2bfb6d14e35c30b24971b9a2db90748177ee23959b7b6b22ed

  • SHA512

    fbe42dc44812899e32a09012dd5c590f8fc298aac84ae0e140ab2b53e398707c708267aae6210dc3bad6559859ad0b0ef05dc74064a73586c2fb66903038d7eb

  • SSDEEP

    98304:xRCvLUBsg5qofeZPTS8u5u3hnN0sdnB4cY/TUwHOAU68+ociP88W5BzXq7lB:x6LUCg5qoZsRN0q0xLc+APE5BLq7P

Malware Config

Extracted

Family

nullmixer

C2

http://watira.xyz/

Targets

    • Target

      0a7b9a3a120d129f53edd0c6fa2564b2_JaffaCakes118

    • Size

      5.7MB

    • MD5

      0a7b9a3a120d129f53edd0c6fa2564b2

    • SHA1

      062f9ab3533df764cebb4df4e09c15b0a154a977

    • SHA256

      c767c0c438dd1a2bfb6d14e35c30b24971b9a2db90748177ee23959b7b6b22ed

    • SHA512

      fbe42dc44812899e32a09012dd5c590f8fc298aac84ae0e140ab2b53e398707c708267aae6210dc3bad6559859ad0b0ef05dc74064a73586c2fb66903038d7eb

    • SSDEEP

      98304:xRCvLUBsg5qofeZPTS8u5u3hnN0sdnB4cY/TUwHOAU68+ociP88W5BzXq7lB:x6LUCg5qoZsRN0q0xLc+APE5BLq7P

    • NullMixer

      NullMixer is a malware dropper leading to an infection chain of a wide variety of malware families.

    • PrivateLoader

      PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

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

    • Vidar Stealer

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • 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.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Checks whether UAC is enabled

    • 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.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks