Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f71a69068dd0359…

MALICIOUS

PDF

34.6 KB Created: 2021-07-07 23:22:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d23b02b5faaa762e57348182247f565a SHA-1: 343a565af7be1a95efb635834d38e7c44b6934ca SHA-256: 0f71a69068dd0359a44d6f1b351b957d68d157835912c27b87d59b748ec062eb
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free game currency and hacks, directing users to a malicious URL. The ML classifier strongly indicated maliciousness, and the presence of external URIs and game hack lures are high-signal indicators of a phishing or scam attempt. The document body and embedded URLs suggest the intent is to redirect users to potentially malicious sites for fake generators or downloads.

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/get-free-robux-without-human-verification-game-hack PDF link annotation
    • http://librarystkippgribl.com/repository/hacker-coin-master_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/minecraft-book-collection_GM479516143.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/minecraft-java-code-free_GM479516143.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/prison-life-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/free-draw-2-roblox_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/easy-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/minecraft-free-apk-download-016-0_GM479516143.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/coin-master-apk_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/minecraft-wurst-client_GM479516143.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/coin-master-spins_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/coin-master-free-spins-link-october-2021_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/coin-master-heaven-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/rbx-earn_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/minecraft-free-download-mac_GM479516143.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_off00002f0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F0B 22240 bytes
SHA-256: ebf4ce34580498afe7cc110d1a617466a561b142a3daa55e9fd462ea5df5d15a
font_01_sfnt_off00006073.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6073 19700 bytes
SHA-256: e8bf7ca05401f798ebc0703cbcc09d220ccc7d22796280ca6a3dd60c700d0f91

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