Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3f07f3eebf945bc…

MALICIOUS

PDF

33.8 KB Created: 2021-06-26 04:27:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: c33f19e74dbf63e8b5d22e13b7049738 SHA-1: 44a3a7594524f25ea50fa5f52e6d5e7f21869a46 SHA-256: e3f07f3eebf945bce238a388d3bb56e2dbb02820c9fded23f7a612f7e79afa7f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to malicious redirectors, specifically advertising 'free generators' and 'game hacks' for popular games like Roblox. The primary lure URL is http://netcdn.co/app/431946152/hack-an-account-on-roblox-game-hack, which is associated with known malicious infrastructure. While no scripts were extracted, the document's structure and embedded URLs strongly indicate a phishing or scam attempt designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/hack-an-account-on-roblox-game-hack In PDF document text
    • http://lib.vipklh.ru/repository/how-to-hack-john-doe-in-roblox_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-make-a-modded-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-hack-old-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/blox-best-robux_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/minecraft-windows-10-code-free_GM479516143.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/give-me-robux-now_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-robux-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/hack-coin-master-2021-pc_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/lastrick-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coin-master-free-link-spin_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-hack-coin-master-root_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-gain-more-spins-on-coin-master-for-free_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
font_00_sfnt_off00002f10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F10 21884 bytes
SHA-256: 2ebc2ea33dd814952de2eca763a342ed26a3b879e017d66e6c34dac930950de9
font_01_sfnt_off00005f1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F1C 18900 bytes
SHA-256: eded798b0ac51ee30a475cc792b25d4c334c715cb7fa8b889fb2e9ef92e752c8

Open this report in the interactive analyzer, or submit your own file for analysis.