Malicious PDF — malware analysis report

Static analysis result for SHA-256 43f9088f1d450571…

MALICIOUS

PDF

33.6 KB Created: 2021-06-18 04:31:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 2ae07204717b5d46f319dcc40ccd937a SHA-1: 56276860c636cefffa6e12bb831d8c9eb94b3b79 SHA-256: 43f9088f1d450571a4250b7cf0c82a2aa28bec9c93bfce08b21d3ba420f57c4e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game currency and hacks to entice users to click on embedded links. The primary link, http://netcdn.co/app/431946152/how-to-report-a-hacker-that-hacked-your-roblox-account-game-hack, is likely to lead to a malicious site or download. While no scripts were explicitly extracted, the PDF structure and heuristics suggest it's designed to redirect users to potentially harmful content, aligning with a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/how-to-report-a-hacker-that-hacked-your-roblox-account-game-hack PDF link annotation
    • http://lib.fisipumt.ac.id//repository/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/earngg-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/20210-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-to-get-free-unlimited-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-roblox-clothes-girl_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-coins-2021-coin-master-link_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-34-6-hack_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-spin-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/mcpe-master-hack-unlimited-coins-download_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/tiktok-free-online-textbooks_GM835599320.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-anarchy-server-no-hacks_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-hack-roblox-accounts-password_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/cute-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-to-get-free-roebucks-without-verification_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002b6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B6C 22136 bytes
SHA-256: c233113684c122db94f7e43a80275d6581753f5d8faeca206b326bf626095ed7
font_01_sfnt_off00005c9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C9C 19740 bytes
SHA-256: 6cd88827d9cea0d211fc6dc55974be651a97d68385686504d1289eba6a63a569

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