Malicious PDF — malware analysis report

Static analysis result for SHA-256 10beda8f26ccd5ed…

MALICIOUS

PDF

38.7 KB Created: 2021-05-21 14:43:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a2fdee22f14399d1ee674650b4cd5767 SHA-1: e2ac05f2c4f80c7c9797f5323702954ca2dfc738 SHA-256: 10beda8f26ccd5ede8a8914fa5c1ea2a3708d16ba9d0f18c109d64fb1977ee1e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hack generators. The document body and embedded links suggest a lure for free game items, which is a common social engineering tactic. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate malicious redirection and potential exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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/406889139/coin-master-free-spins-link-2021-today-game-hack In PDF document text
    • http://rosadent.com/images/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://rosadent.com/images/claim-free-robux-button_GM431946152.pdfIn PDF document text
    • http://rosadent.com/images/how-to-get-free-items-on-roblox_GM431946152.pdfIn PDF document text
    • http://rosadent.com/images/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://rosadent.com/images/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003186.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3186 24508 bytes
SHA-256: 4621996c66e5d7cfb36c8b4bb88ae5cae4254a333a12a9d6a5895d8606532f98
font_01_sfnt_off000069e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69E2 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off000073cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73CD 18812 bytes
SHA-256: 705c5903f824403b328e8e9dbd2ab52a650d097fc3c0d4bbd34be772086d041a

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