Malicious PDF — malware analysis report

Static analysis result for SHA-256 53a6e29357bff6b2…

MALICIOUS

PDF

35.2 KB Created: 2021-06-18 14:58:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 690b83e017c97256147856817441d5e0 SHA-1: 34ab0260109028b108fb8fa7550d68b3a4abeec9 SHA-256: 53a6e29357bff6b20383b7f1af09bc20be09224959f6b159d7281b113736217d
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 0.9980

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.co/app/431946152/legit-methods-of-getting-free-robux-game-hack PDF link annotation
    • http://www.pspmrsmkkb.com/webopac/repository/reddit-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-spin-today-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-sonic-costume-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/tiktok-free-zong_GM835599320.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/how-do-u-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/roblox-synapse-exploit-download-free_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/how-to-hack-coin-master-using-es-file_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/how-to-get-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/roblox-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-admin-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/hack-game-online-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/roblox-town-factory-cheats_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/roblox-robux-generator-no-human-verification_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_off00002f3e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F3E 23084 bytes
SHA-256: 8e33b8bfb7ea092983c73b7c9a40efae433fcf4ad8a4e1293c3e036d4bd28705
font_01_sfnt_off00006358.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6358 19476 bytes
SHA-256: de8351c521633b15b8ebe34bd2a8e334af6c7d64362e20809644b092eccb6b96

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