Malicious PDF — malware analysis report

Static analysis result for SHA-256 12d71e69230b8df1…

MALICIOUS

PDF

45.4 KB Created: 2021-05-10 23:30:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 549b52f37f17f1d73efb4673633af713 SHA-1: 785ff1188c726fa2286c7dda80355f804215a3d6 SHA-256: 12d71e69230b8df19574907ba000706b946cb1710ed8dc75775a1f52b61439fb
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 0.9507

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.xyz/app/406889139/spin-hack-for-coin-master-game-hack PDF link annotation
    • http://fkunismuh.org/perpustakaan//repository/free-coin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/coin-master-free-spin-link-list_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/freecoins_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/how-to-watch-ads-for-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/www-free-robux_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/microsoft-rewards-roblox_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/pig-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/how-to-get-minecraft-for-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/coin-master-hoe-to-get-extra-free-spins_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/coin-master-bonus_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-roblox-gift-card-codes_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a7f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A7F 25424 bytes
SHA-256: 25e0ab182785c63d087b016700479ca993f3db981b05780062367970ef4185df
font_01_sfnt_off000085d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85D8 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00008fc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FC2 18056 bytes
SHA-256: efb6f25b23622ff69f2be3f4d9196c6fd2e96d89fb8c2cc83df2012bf2af43d5

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