Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fe281577f4d43f7…

MALICIOUS

PDF

42.8 KB Created: 2021-05-19 02:49:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d6018c27784d13e9789cc3e2b92e0e7a SHA-1: d0f4a94e3be872f5e24aac6ab5635f6ef1437af4 SHA-256: 2fe281577f4d43f759a2ab62813f2462aab55f351fd3ec8fb148c968406ccb17
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The ML classifier also strongly indicated maliciousness. The document body, though partially corrupted, contains references to these lures and the malicious URLs, suggesting an attempt to trick users into visiting potentially harmful sites.

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/406889139/coin-master-app-free-download-game-hack In PDF document text
    • https://my-private-intendant.com/images/free-robux-wheel_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/free-coins-and-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/coin-master-support_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/hack-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://my-private-intendant.com/images/coin-master-game-hack-link_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/my-robux_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/free-robux-just-click_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/coin-master-hack-version-2021_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/earn-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/rbx-hut_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/how-to-o-get-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/coin-master-download_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/minecraft-free-apk_GM479516143.pdfIn PDF document text
    • https://my-private-intendant.com/images/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/free-coin-coin-master_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_off00004bb7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BB7 24844 bytes
SHA-256: 0d4507097ff54ece46e8d6af9de4c66493f979128029ccab8d834becccc8a586
font_01_sfnt_off0000844d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x844D 18464 bytes
SHA-256: 40f30d03f9df9e16cedf50fa7ce351738090605bdee0a2874ac532244730da1c

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