Malicious PDF — malware analysis report

Static analysis result for SHA-256 e079e8f615c4b929…

MALICIOUS

PDF

45.6 KB Created: 2021-05-14 14:16:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a11f1ebcbc0249c767c985b9add4cc3f SHA-1: 718dda48f2dd6f02618cddd74f3876cc1478dcd7 SHA-256: e079e8f615c4b92998cf55c49aff2e3ec0052c358d8e366d36902dfa4d1e9e98
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites that are flagged as malicious redirectors, specifically advertising 'free generators' and 'game hacks'. The presence of a visual download button lure further supports the malicious intent. While no scripts were directly extracted, the PDF structure and embedded links strongly suggest a phishing or malware distribution attempt, likely initiated via spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/new-free-spins-coin-master-game-hack In PDF document text
    • http://reisebild.eu/images/free-roblox-shirt-templates-2021_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/coin-master-free-spins--spins_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/how-to-install-minecraft-for-free-on-ios_GM479516143.pdfIn PDF document text
    • http://reisebild.eu/images/rbx-hut-promo-codes_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/free-spin-and-coin-blogspot_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/coin-master-card-collection-hack-2021_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • http://reisebild.eu/images/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • http://reisebild.eu/images/coin-master-games-hack_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/wurst-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • http://reisebild.eu/images/coin-master-hack-apk-online_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/how-to-gain-more-spins-on-coin-master-for-free_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_003_off000047dc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47DC 27108 bytes
SHA-256: 023a43191358812acc076daca0de424b1bd0771cc3e828fdb794964dfb29addb
font_01_sfnt_off00008527.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8527 3160 bytes
SHA-256: a215beec32d6f102b99591c6f9f9c09a93d8a6824a4b20cf2cb8b789e17a5c27
font_02_sfnt_off0000902e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x902E 18052 bytes
SHA-256: f6ae81a0f80ce3ee57e108e39e83609ad458bab121923b9094461962bc480278

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