Malicious PDF — malware analysis report

Static analysis result for SHA-256 26b4d6389281fc37…

MALICIOUS

PDF

41.9 KB Created: 2021-05-10 20:04:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: eacf694d98996be9422816293329b88b SHA-1: 8951ff6ff12c157b3d60214425a3ec66e1d355c9 SHA-256: 26b4d6389281fc37f860480682043e763a6f252bfa3979ea301053a014c132af
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic indicating it links to a "free generator / game hack" lure. The document body and extracted URLs reinforce this, pointing to sites offering game cheats and hacks. While no scripts were explicitly extracted, the nature of the lure suggests it is intended to redirect users to malicious content, likely a downloader or phishing page, and the PDF format itself can embed JavaScript for such actions.

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/406889139/hack-coin-master-free-game-hack PDF link annotation
    • http://www.pspmrsmkber.com/opac/repository/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/coin-master-free-spins-link-2021-hack_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/free-robux-app_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/promo-code-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/can-i-have-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/aimbot-download-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/minecraft-18-9-hacked-client_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/free-roblox-website_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/gamesofficenet-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/coin-mast-hacks_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/get-me-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/coin-master-free-spins-gratis_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/free-100-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkber.com/opac/repository/free-spin-link-for-coin-master_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_off0000493b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x493B 25828 bytes
SHA-256: 8892c004fb4959493379c26c702f430afcfc87ba072774f387186770459db7e8
font_01_sfnt_off0000829c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x829C 17880 bytes
SHA-256: 257aee740a5ae17e91b93ad4d540c168849f24efe28ef42b55966c96749a0114

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