Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfd2e361900afb3c…

MALICIOUS

PDF

42.6 KB Created: 2021-05-16 05:20:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 04c59d0a6e48d20e93fb634e9c9abbd5 SHA-1: 0baa067bb7fecc253cd83737eced356fa2174eb7 SHA-256: dfd2e361900afb3cb5524a1689635c1abdde13d41e9308689d4806318ad1a7cd
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links and a visual lure suggesting a 'game hack' or 'free generator' to entice users. The primary link directs to a URL associated with earning Robux, a common lure for scams. While no scripts were explicitly extracted, the PDF structure and embedded URIs indicate a redirection mechanism, likely to a malicious website or phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/how-to-earn-robux-on-roblox-game-hack PDF link annotation
    • http://sfsbm.org/images/how-to-get-minecraft-for-free-on-xbox-360_GM479516143.pdfIn PDF document text
    • http://sfsbm.org/images/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://sfsbm.org/images/robux-no-verification_GM431946152.pdfIn PDF document text
    • http://sfsbm.org/images/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://sfsbm.org/images/coin-master-free-spins-2-5-2021_GM406889139.pdfIn PDF document text
    • http://sfsbm.org/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://sfsbm.org/images/coin-master-free-spins-link-today-blogspot_GM406889139.pdfIn PDF document text
    • http://sfsbm.org/images/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://sfsbm.org/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://sfsbm.org/images/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • http://sfsbm.org/images/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://sfsbm.org/images/free-coins-coin-master-today_GM406889139.pdfIn PDF document text
    • http://sfsbm.org/images/free-coins-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://sfsbm.org/images/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://sfsbm.org/images/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdfIn PDF document text
    • http://sfsbm.org/images/free-robux-download_GM431946152.pdfIn PDF document text
    • http://sfsbm.org/images/free-roblox-svg_GM431946152.pdfIn PDF document text
    • http://sfsbm.org/images/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://sfsbm.org/images/do-coin-master-hacks-work_GM406889139.pdfIn PDF document text
    • http://sfsbm.org/images/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://direct-link.netIn 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
stream_003_off000047dc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47DC 26868 bytes
SHA-256: 0a6394ae3614c193ea32e4fda4cc757d0fbcda3669c99c8679eb52ac4c357672
font_01_sfnt_off000083d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83D5 18316 bytes
SHA-256: 648fa2b30230dc2606705c3a90d8924a9412c1d260df5319690c757a03f83928

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