Malicious PDF — malware analysis report

Static analysis result for SHA-256 71590c8bfac0c02a…

MALICIOUS

PDF

34.5 KB Created: 2021-07-06 12:02:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 95fd4320cf77fc20914f1b57be6b94ef SHA-1: 32aa687c593bf9dcc311f61695c66097761e435e SHA-256: 71590c8bfac0c02a1ff062a27b898c0867c644e6afa5f113b444a14871c3b7a0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, with a primary URL pointing to a site promising game hacks. The document body explicitly mentions 'Roblox Rape Hack' and 'CLICK HERE TO ACCESS ROBUX GENERATOR', indicating a lure for potentially malicious content. While no scripts were extracted, the presence of embedded URLs and the high ML classifier score strongly suggest a malicious intent to redirect users to harmful websites.

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.tw/app/431946152/roblox-rape-hack-game-hack PDF link annotation
    • http://libnh.stikesnh.ac.id/repository/coin-master-hack-without-verification-ios_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/deluxe-ninja-sword-for-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/coin-master-hack-mod-apk-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/is-roblox-free-on-xbox_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/hack-coin-master-android-game_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/original-roblox_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/robux-generator_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/how-to-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/coin-master-hack-spins-download_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-robux-live_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/how-to-robux_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/roblox-fun-robux_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/is-roblox-free-on-ps4_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
font_00_sfnt_off000030d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30D7 22264 bytes
SHA-256: 2986695877b449dd57834919a8e0897d1ef49135a9cc992115285d5c34515c6a
font_01_sfnt_off00006277.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6277 18832 bytes
SHA-256: 3ac3cfabc938180400d0abf1f56cc3fab268d3e1a7375c8f9738c83b811e0b8b

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