Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6b371999135520a…

MALICIOUS

PDF

44.2 KB Created: 2021-06-03 23:05:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c905814f14056f253baee4a191d8ada4 SHA-1: 4f1319718633f43a33f30060dd14db7f793c519e SHA-256: b6b371999135520aa72d516cf410b7193bcaf6fc0931135c3c29cde225036939
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.online/app/431946152/free-robux-group-game-hack PDF link annotation
    • http://suaedy-library.net/repository/20210-robux_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-robux-group_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-robux-live_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/is-it-possible-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-hack-pc_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/robux-gainer_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-get-free-hair-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-hack-version_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-get-free-spins-on-coin-master-2021-links_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/appsmobinfo-coinmasterhack-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/robux-today_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_004_off00004fee.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FEE 25876 bytes
SHA-256: 344e70b11a24290b384de8737772014b308fbed6b7a31deba27491b37d1eb280
font_01_sfnt_off00008a9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A9E 18192 bytes
SHA-256: 388213afa323ee085de7e38d37e80f389e12e91d2d5a1b35e5038c11a526558f

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