Malicious PDF — malware analysis report

Static analysis result for SHA-256 09b4a057ddd3ddb6…

MALICIOUS

PDF

34.3 KB Created: 2021-06-27 12:54:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: ba26bec60efbcec9dffb349ba266c84c SHA-1: 861bd9e5215fe2141831eb99d6e754ecbb6d6f47 SHA-256: 09b4a057ddd3ddb6ecbe7a7b2c9f945e2eab51207f63ce6cc2bef4bfe7a11f1f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'free Robux' and game hacks, directing users to the URL http://netcdn.co/app/431946152/how-to-get-free-robux-no-youtube-game-hack. This URL is associated with a high-risk heuristic for game hack redirects, indicating a likely attempt to deliver a malicious payload or phish for credentials. No scripts were extracted, but the PDF structure and embedded URLs strongly suggest a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/how-to-get-free-robux-no-youtube-game-hack PDF link annotation
    • http://lib.fisipumt.ac.id/repository/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-make-script-hack-for-roblox-one-piece_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-monster_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/interfaz-de-hack-de-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-spins-gratis_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-printable-roblox-activities_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-robux-game-hack-com_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-coins-twitter_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-space-outpost-tycoon-script-hack-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/static-moonactive-net-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/kazok-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-how-to-noclip-with-cheat-engine-64_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/hacks-roblox-jailbreak-download_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-blood-moon-tycoon-auto-rebirth-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/can-you-give-me-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F19 22260 bytes
SHA-256: 93c5a59c262a673ef32a57406805c6796f9402972b7e3b01306268e45afc1cf9
font_01_sfnt_off000060a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60A2 19144 bytes
SHA-256: 1869f6c9a9cfdfaf14083e9a894f028c6820ec496217b0c5229a1b04d963ab70

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