Malicious PDF — malware analysis report

Static analysis result for SHA-256 93ff58a423d9895b…

MALICIOUS

PDF

50.2 KB Created: 2021-05-16 03:44:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: b77e73806a751eb6e45a3dc341db7fce SHA-1: c114f298959408057e7cd67781a33e9be75cbfe2 SHA-256: 93ff58a423d9895b1b57bdf21b37cba8808095c8667ccfdbc325552f991d9d1a
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 0.9982

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/roblox-arsenal-hack-script-pastebin-game-hack PDF link annotation
    • http://arpinoturismo.it/images/is-roblox-free-on-pc_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/how-to-get-minecraft-pe-for-free-ios_GM479516143.pdfIn PDF document text
    • http://arpinoturismo.it/images/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://arpinoturismo.it/images/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-hack-tool-india_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-20-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/mcpe-master-hack-unlimited-coins-download_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/free-minecraft-account-reddit_GM479516143.pdfIn PDF document text
    • http://arpinoturismo.it/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-free-spin-and-coins-links-home_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/roblox-com-r_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-hack-pro_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/minecraft-creative-mode-free_GM479516143.pdfIn PDF document text
    • http://arpinoturismo.it/images/how-do-you-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/free-minecraft-accounts-2021_GM479516143.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_003_off00004d5d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D5D 37484 bytes
SHA-256: bfd29514be303d9284096292b5e4d4eb1e06749bd42a702f25b0fb9c3221ea24
font_01_sfnt_off0000a0f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0F4 18736 bytes
SHA-256: 7de8619ef554dfe1f2192c4aca90399aa0815846f6a8f71df992d0e349aeb038

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