Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8c517f29f623af4…

MALICIOUS

PDF

42.4 KB Created: 2021-05-13 07:03:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 1d6a40d24aba6789471c498825079d84 SHA-1: e60ede1fbb1f396874d05e9a6a1cf65b24920642 SHA-256: d8c517f29f623af49ef4b20bf4e18d2c544b57444b66ad6793e3915af1fe7b2a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically promoting "game hacks" and "generators" to lure users. The primary redirector URL is https://netcdn.xyz/app/431946152/get-robux-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering attack designed to lead users to malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/get-robux-game-hack In PDF document text
    • http://ginfed.net.co/editor_rc/tools/ckeditor/img/images/files/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://ginfed.net.co/editor_rc/tools/ckeditor/img/images/files/coin-master-heaven-links-free-spins_GM406889139.pdfIn PDF document text
    • http://ginfed.net.co/editor_rc/tools/ckeditor/img/images/files/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://ginfed.net.co/editor_rc/tools/ckeditor/img/images/files/free-free-robux_GM431946152.pdfIn PDF document text
    • http://ginfed.net.co/editor_rc/tools/ckeditor/img/images/files/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • http://ginfed.net.co/editor_rc/tools/ckeditor/img/images/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://ginfed.net.co/editor_rc/tools/ckeditor/img/images/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://ginfed.net.co/editor_rc/tools/ckeditor/img/images/files/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://ginfed.net.co/editor_rc/tools/ckeditor/img/images/files/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://ginfed.net.co/editor_rc/tools/ckeditor/img/images/files/is-roblox-free-on-xbox_GM431946152.pdfIn PDF document text
    • http://ginfed.net.co/editor_rc/tools/ckeditor/img/images/files/40-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://ginfed.net.co/editor_rc/tools/ckeditor/img/images/files/coin-master-online-hack-generator_GM406889139.pdfIn PDF document text
    • http://ginfed.net.co/editor_rc/tools/ckeditor/img/images/files/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://ginfed.net.co/editor_rc/tools/ckeditor/img/images/files/daily-coin-master-link_GM406889139.pdfIn PDF document text
    • http://ginfed.net.co/editor_rc/tools/ckeditor/img/images/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://ginfed.net.co/editor_rc/tools/ckeditor/img/images/files/free-coin-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://ginfed.net.co/editor_rc/tools/ckeditor/img/images/files/how-to-get-robux-fast_GM431946152.pdfIn PDF document text
    • http://ginfed.net.co/editor_rc/tools/ckeditor/img/images/files/coin-master-hack-app-link_GM406889139.pdfIn PDF document text
    • http://ginfed.net.co/editor_rc/tools/ckeditor/img/images/files/coin-master-tricks-and-hacks_GM406889139.pdfIn PDF document text
    • http://ginfed.net.co/editor_rc/tools/ckeditor/img/images/files/coin-master-free-food_GM406889139.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
stream_003_off0000492f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x492F 25888 bytes
SHA-256: 048e5631899aadfdda57256e9d61d041a73c3ecbf8404218333cf84aaea7e94a
font_01_sfnt_off00008467.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8467 17952 bytes
SHA-256: a34a0f77aa554f5c92185b6c86909c5f9e39b3171f9efb4f2c073b614301e128

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