Malicious PDF — malware analysis report

Static analysis result for SHA-256 746efc75db561e9c…

MALICIOUS

PDF

32.0 KB Created: 2021-07-19 04:43:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bfee293578cc3969b983729b3d20b1b4 SHA-1: fcb06b7fc987ce54682aafd285c3a8ecb617cc08 SHA-256: 746efc75db561e9c02b531ad4cf1cf536b33dd7629838e545de8c29d9f44845e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting a "Minecraft Free Android Game Hack". The presence of a "Click here to download" call-to-action further supports the lure. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or scam attempt designed to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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.tw/app/479516143/minecraft-free-android-game-hack In PDF document text
    • https://samfora.de/images/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • https://samfora.de/images/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://samfora.de/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • https://samfora.de/images/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • https://samfora.de/images/robux-hack-me_GM431946152.pdfIn PDF document text
    • https://samfora.de/images/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • https://samfora.de/images/how-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://samfora.de/images/how-to-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://samfora.de/images/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • https://samfora.de/images/rbxfree-com-free-robux_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_off00002aff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AFF 22212 bytes
SHA-256: 1b0f6d15c351d915aed5fa4bfa0ada30d1e901492fb7bd4263cbc937ee7eb637
font_01_sfnt_off00005c16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C16 17884 bytes
SHA-256: 82c3baf37781722f94369c3593b69e30ff14556e6fd52427afe75c94c9d4ce60

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