Malicious PDF — malware analysis report

Static analysis result for SHA-256 180fd527a8abcd3f…

MALICIOUS

PDF

44.8 KB Created: 2021-06-08 20:11:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 8569bb1112cbfb637a3cd29a1060f322 SHA-1: 059bac4931c7a6baa0b6c9acb497fb1f54677388 SHA-256: 180fd527a8abcd3f8f198744f460e2da9e8fd217fc6e6dca4441f3257d907d8b
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 0.9865

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.tw/app/431946152/best-roblox-hack-executer-game-hack PDF link annotation
    • http://lib.untad.ac.id//repository/coin-master-hack-spins-and-coins-unlimited-free_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/pubg-74-uc_GM1330123889.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-free-spins-whatsapp-link_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-fan-page-giveaway_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/multiplayer-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/minecraft-anarchy-server-no-hacks_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/united-gaming-net-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/wurst-minecraft_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-free-spins-april-2021_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-free-followers_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/ro-ghoul-script_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-hack-m-coins-mcpe-master_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/gamehunters-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/mcpe-master-hack-unlimited-coins-apk_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/minecraft-tools_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_004_off00005176.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5176 25568 bytes
SHA-256: 0f22090e7cd623027a8aae1d0d745e37173c341f6e0985b6254f186e87c62c4a
font_01_sfnt_off00008bbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BBD 18428 bytes
SHA-256: f0dd67dbeb47564887323be9161e0fb249e7907d96bcfd8077429a64036b3fab

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