Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6a6fe12e0b5d6d0…

MALICIOUS

PDF

47.1 KB Created: 2021-05-17 11:54:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 83727f3027b44f9d7e8155f4d20600f1 SHA-1: a99000d20a588a94ad10587ec50d906b05b5fe81 SHA-256: e6a6fe12e0b5d6d084b413ee735c28577436ba2ef5bb55864169ad2d737dbf80
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically advertising 'free Robux' or game hacks. The heuristic firings confirm these links point to known malicious redirectors and lure users with game-related content. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to drive users to malicious websites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/free-robux-no-password-game-hack In PDF document text
    • http://kulturlandschaften.eu/images/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/coin-master-fun-hack_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/free-robux-download_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/cheats-coin-master-free-spins-and-news_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/wurst-client-download_GM479516143.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/roblox-hax_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/free-spins-coinmaster_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/roblox-fun-com-robux_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/free-spins-for-coin-masters_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/minecraft-free-school_GM479516143.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/how-to-earn-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/get-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/coin-master-free-spins-link-download-free_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/hack-roblox-players_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/free-roblox-dominus_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/free-roblox-accessories_GM431946152.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
font_00_sfnt_off00004a88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A88 27852 bytes
SHA-256: 7d89806f9d35eb8920b19bcd7b161499cb47429ccfa015fddc43e668c233f9ce
font_01_sfnt_off00008a3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A3F 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00009429.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9429 18732 bytes
SHA-256: b254955316d184f98c6f6070526605807868e3146c8b9e5f8ca39f20861b2296

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