Malicious PDF — malware analysis report

Static analysis result for SHA-256 916846cecedd98c2…

MALICIOUS

PDF

35.4 KB Created: 2021-07-03 15:05:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 48b03c4815762040cdfe9af16b2d5428 SHA-1: 892214f5381a3497694f573f7f84b5bc20e21ce0 SHA-256: 916846cecedd98c2ba3c554c7180d8b6df23515ecb032e6f0653bf871dbfdb16
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 0.9980

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.tw/app/406889139/coin-master-hack-without-verification-code-2021-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/minecraft-free-unblocked_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-without-cheat-engine_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/give-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-prop-boat-free_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-buisnees-simulator-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/john-doe-hacker-roblox-march-18_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/accounts-that-give-free-robux-when-you-visit-it_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/aimbot-hacks-for-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/hacking-s-roblox-account_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-promo-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-free-demo_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-hack-a-person-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/high-school-life-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-change-your-name-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-cheat-engine-bypass-november-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-how-to-change-username-for-free_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/guardian-roblox-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-stuff-for-roblox-2021_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_off000031cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31CB 22832 bytes
SHA-256: baaf32ef17a695d3348141b77b42e4752a7a5d53d6679db33e7eb0e00f8b3dde
font_01_sfnt_off000064fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64FB 19216 bytes
SHA-256: f9715f8a5fc3a5974ca02d09a7458c6ee712efb38a426809f6a0982568d4a459

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