Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fffdb7cf1fc5fe8…

MALICIOUS

PDF

39.3 KB Created: 2021-05-23 05:06:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3631263a1d02408d675b27162de53bcc SHA-1: 3256910a8866b342814937241856d7af6b19b68d SHA-256: 2fffdb7cf1fc5fe8ba131b1aca781cf79145f5496a677415edc16d11b84cfa4e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to known malicious redirectors, specifically disguised as 'free generator' or 'game hack' lures. These links ultimately point to domains hosting further PDF files or potentially other malicious content. The ML classifier also flagged this PDF as malicious, supporting the conclusion that it is designed to trick users into downloading further malware.

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/479516143/real-minecraft-for-free-game-hack In PDF document text
    • http://artion.biz/images/free-minecraft-mods-for-xbox-one_GM479516143.pdfIn PDF document text
    • http://artion.biz/images/what-are-points-for-in-roblox_GM431946152.pdfIn PDF document text
    • http://artion.biz/images/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://artion.biz/images/minecraft-skins-free-girl_GM479516143.pdfIn PDF document text
    • http://artion.biz/images/coin-master-free-raid-link_GM406889139.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_off00003697.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3697 25300 bytes
SHA-256: a7e03b097e5c54f6f84689474dab7974577bcd9ca95edd4a489d71116e2f75f8
font_01_sfnt_off00006f44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F44 3056 bytes
SHA-256: dd24a0ab94df4552e459bd06fd01b0fd3f021c1d51d1d64407070e735974a028
font_02_sfnt_off000079b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79B6 17784 bytes
SHA-256: d9b0d0c4c4ee4a540b7fb0061982a790ffe87580883f4fb909ed1eb0697febb4

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