Malicious PDF — malware analysis report

Static analysis result for SHA-256 35091ae704ea759d…

MALICIOUS

PDF

37.9 KB Created: 2021-06-25 22:26:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 8df3cbc66fb1da49c2f7f3fa5457cf41 SHA-1: 531dc4016a44eac19fcb57655330b05b210417a4 SHA-256: 35091ae704ea759d9db29bb615c2733f4e540fcfc8443cf00fcfeaf60b739117
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 0.9985

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/guardian-roblox-hack-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/hacks-para-sinking-ship-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-for-kids-easy_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/como-conseguir-monedas-infinitas-y-tiradas-de-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-hack-roblox-on-mobile_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-minecraft-accounts-reddit_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-tiktok-followers-no-human-verification-or-survey_GM835599320.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-obby_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-hack-any-account-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-mods-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-cheat-tables_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-rocitizens-codes-for-free-items_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-java-edition-free-download_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-speed-hack-download-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-roblox-plaza-money_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-hack-jailbreak-free_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-codes-with-skins_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-roblox-redeem-codes-10_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
font_00_sfnt_off00003bff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BFF 22988 bytes
SHA-256: 5586c7f781445d0c1e27c9084fa2ee61ba127ad3aa6055f4e46a200e216e414b
font_01_sfnt_off00006f4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F4D 19088 bytes
SHA-256: 61e7dd14e3694e90930bc79359c24931c45f9dc34512d71a5633433d1e57547b

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