Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d76b8650d1df6a5…

MALICIOUS

PDF

34.1 KB Created: 2021-07-04 21:25:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 37f07f2cff4bbed0489149663809043a SHA-1: aac3443ef69c57cce76431acf02e82fc2a990781 SHA-256: 0d76b8650d1df6a5654e5389a45b812e23accef830b7977904d6bb933db0b24a
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/479516143/can-you-still-get-minecraft-windows-10-for-free-game-hack PDF link annotation
    • http://sttlets.education/senayan/repository/free-minecraft-printables-food-labels_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-free-pokeballs-in-pokemon-go_GM1094591345.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-codes-site_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-why-cant-audio-be-free_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/all-66-free-items-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-master-apk-mod-hack-download_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/free-spin-links-coin-master-october-30-2021_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-free-items-for-avatar_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-master-facebook-hack_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-item-give-obby-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-free-spins-link-2021-haktuts_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-master-raid-hack_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-20-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-working_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-how-to-play-bloxburg-for-free_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-hacking-account-program_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-roblox-cute-girl-outfits_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_off00003059.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3059 21800 bytes
SHA-256: fa80faaadda8e32da5e7b1b97a3856e836593b1c8ea3615bf447b77cfd74b39b
font_01_sfnt_off00005fdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FDD 19188 bytes
SHA-256: 5ae83d3d5d8149000e7841cfc0c736863ea64b7ab57d9f91b64f20a1c75fe470

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