Malicious PDF — malware analysis report

Static analysis result for SHA-256 2054c80d806034d9…

MALICIOUS

PDF

46.9 KB Created: 2021-06-09 01:28:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fd35885d2a1686c95a44118f94f94c49 SHA-1: cad6d8904d2b0fa401f425d4ca96ea799505669b SHA-256: 2054c80d806034d9002fce065edcca1b9f02756ecefa27002554f51fde69c41e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to free Robux gift cards and game hacks, directing users to a malicious URL. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to potentially malicious content or phishing sites. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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/free-robux-gift-cards-2021-game-hack PDF link annotation
    • http://digilib.akperkabpurworejo.ac.id//repository/coin-master-free-download-app_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-free-foxy-food_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/mcpe-free-download_GM479516143.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/free-online-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-redeem-codes-free_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/coin-master-free-fire_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/link-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/free-spin-coin-master-new-link_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-latest-version-hack_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/how-to-gift-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/how-to-get-free-robux-on-android_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/coin-master-reward-link_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-fan-page-giveaway_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000508e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x508E 29520 bytes
SHA-256: 4fcc95faa667b7aea431ee28db4923e9886a16284d807eccb565d6c3ccc424aa
font_01_sfnt_off00009259.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9259 19044 bytes
SHA-256: a83203ba6d4d8e4db234da74518c811315008a13a6a61ff598d06d89853e7c2b

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