Malicious PDF — malware analysis report

Static analysis result for SHA-256 07a83b31566f59e2…

MALICIOUS

PDF

34.7 KB Created: 2021-07-06 05:30:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 22140d3c8e663b4f7e0ee6a3825bf58b SHA-1: db5de417b96b4a80612b98c0b36b58768dcd32f3 SHA-256: 07a83b31566f59e2254123354bc1cec43d1279ff2807755b1080db403183c858
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a clear lure for game hacks and free currency, specifically mentioning 'Coin Master'. The embedded URL and document body point to a malicious redirector designed to trick users into visiting a site that likely hosts further malware or phishing content. The ML classifier strongly indicates malicious intent.

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-daily-gift-free-spins-and-coins-link-game-hack PDF link annotation
    • http://pengolahan.perpus.wima.ac.id/repository/roblox-free-hair-codes_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/coin-master-attack-hack_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/minecraft-free-download-linux_GM479516143.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/how-to-get-free-robux-in-meep-city_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/coin-master-card-collection-hack-apk_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/roblox-free-robux-script-pastebin_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/free-minecraft-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/adopt-and-raise-a-cute-kid-hack-script-roblox_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/free-robux-app_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/free-coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/coin-master-cheats-and-hacks_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/hack-magic-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/hacks-for-hole-in-the-wall-roblox_GM431946152.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_002_off000031b1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31B1 22364 bytes
SHA-256: a100807cfacf1a8774756bb91548ba18539d53690bd68821742125d87473c637
font_01_sfnt_off00006316.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6316 18940 bytes
SHA-256: a6c8f3ff8a0dea06235968dd24959468b5e0dd7d526557991a378f144c82e936

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