Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d1ce74c00532db1…

MALICIOUS

PDF

42.3 KB Created: 2021-05-11 05:33:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 6a280a3534496621b02cb72377c498bf SHA-1: 3a42ca77bf9967758754f79c9d50ded847a0d671 SHA-256: 9d1ce74c00532db199338511d38036075540cb00f74fe79023a2c69dc7224593
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 0.9971

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/431946152/robux-adder-game-hack PDF link annotation
    • http://www.pspmrsmkber.com/opac/repository/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/coin-master-free-daily-spins-today_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/archery-master-3d-apk-and-mod-free-download-unlimited-coins_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/roblox-free-hats_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/free-spin-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/roblox-free-clothes-girl_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/windows-10-minecraft-free-with-java_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/coin-master-online-hack-tool_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/coin-master-unlimited-spin-and-coin-hack_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/get-free-spins-coin-master-2021_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_003_off00004a17.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A17 25568 bytes
SHA-256: aeabf225ccabacf2b1a93656be2bf7c6fafe66e7cdb038ae9b4190892dd1cd3f
font_01_sfnt_off000083a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83A1 18024 bytes
SHA-256: eed6b00e5540e4ed5c0a0323621a8e02ff50dbf5f569029e8b31eefb756d910c

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