Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f75c6c6407ec567…

MALICIOUS

PDF

45.7 KB Created: 2021-06-02 20:46:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 8bf85c1b98e3f749d4afb9f190108e63 SHA-1: ab94186262e495df0e71479f1e111e0693750a34 SHA-256: 0f75c6c6407ec56746f5672fe16ff1e48ea004ae2dee78e0dfb5bef159f6ebc5
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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/jailbreak-download-free-roblox-game-hack PDF link annotation
    • http://federcaccianucleomagenta.it/images/roblox-shirt-template-free_GM431946152.pdfIn PDF document text
    • http://federcaccianucleomagenta.it/images/free-roblox-hair-to-wear_GM431946152.pdfIn PDF document text
    • http://federcaccianucleomagenta.it/images/cm-daily-spins_GM406889139.pdfIn PDF document text
    • http://federcaccianucleomagenta.it/images/free-avatar-roblox_GM431946152.pdfIn PDF document text
    • http://federcaccianucleomagenta.it/images/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://federcaccianucleomagenta.it/images/how-much-pubg-uc_GM1330123889.pdfIn PDF document text
    • http://federcaccianucleomagenta.it/images/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://federcaccianucleomagenta.it/images/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://federcaccianucleomagenta.it/images/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://federcaccianucleomagenta.it/images/coin-master-free-food_GM406889139.pdfIn PDF document text
    • http://federcaccianucleomagenta.it/images/how-much-robux-can-you-get-with-1-million-dollars_GM431946152.pdfIn PDF document text
    • http://federcaccianucleomagenta.it/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://federcaccianucleomagenta.it/images/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://federcaccianucleomagenta.it/images/coin-master-free-gold-cards-link_GM406889139.pdfIn PDF document text
    • http://federcaccianucleomagenta.it/images/pig-master-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • http://federcaccianucleomagenta.it/images/coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://federcaccianucleomagenta.it/images/roblox-login-hack_GM431946152.pdfIn PDF document text
    • http://federcaccianucleomagenta.it/images/coin-master-100-spin_GM406889139.pdfIn PDF document text
    • http://federcaccianucleomagenta.it/images/roblox-verification_GM431946152.pdfIn PDF document text
    • http://federcaccianucleomagenta.it/images/robuxy-com-generator_GM431946152.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
stream_004_off000050fb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50FB 26072 bytes
SHA-256: 52e2e26391fb64b68dd1ad706451dc6d48a84ee75994210cc62e1e2ad4c0d785
font_01_sfnt_off00008d9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D9B 19140 bytes
SHA-256: 01fd6c8d033172a11bbd854cfd16998dc81a8bae396e6f3befee2f6974c19214

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