Malicious PDF — malware analysis report

Static analysis result for SHA-256 06cb58f28c642a2e…

MALICIOUS

PDF

37.6 KB Created: 2021-06-18 21:43:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 65c237c708b364d85a4c141d5847f67c SHA-1: b640f3a936a8a069dfacbc3399e2ab67f1f17169 SHA-256: 06cb58f28c642a2eba3495487def36fb917f20a11ffb5bac203b00cabfc757ca
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising 'free generators' and 'game hacks' for popular games. The ML classifier also strongly indicated maliciousness. The document body and embedded URLs suggest a lure for users interested in game cheats, which is a common pretext for distributing malware or phishing for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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.co/app/431946152/play-games-for-free-robux-game-hack In PDF document text
    • http://mebliok.com.ua/images/appsmobinfo-coinmasterhack-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://mebliok.com.ua/images/coin-master-unlimited-coins-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://mebliok.com.ua/images/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://mebliok.com.ua/images/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • http://mebliok.com.ua/images/roblox-jump-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://mebliok.com.ua/images/minecraft-xbox-one-code-free_GM479516143.pdfIn PDF document text
    • http://mebliok.com.ua/images/roblox-free-folower-nov-2021_GM431946152.pdfIn PDF document text
    • http://mebliok.com.ua/images/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • http://mebliok.com.ua/images/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://mebliok.com.ua/images/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://mebliok.com.ua/images/coin-master-free-spins-link-quora_GM406889139.pdfIn PDF document text
    • http://mebliok.com.ua/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://mebliok.com.ua/images/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://mebliok.com.ua/images/download-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://mebliok.com.ua/images/coin-master-free-spins-and-chips_GM406889139.pdfIn PDF document text
    • http://mebliok.com.ua/images/roblox-free-wings_GM431946152.pdfIn PDF document text
    • http://mebliok.com.ua/images/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://mebliok.com.ua/images/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://mebliok.com.ua/images/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://mebliok.com.ua/images/coin-master-hack-ios_GM406889139.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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_off00003960.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3960 23204 bytes
SHA-256: 2f407596fcfeeb4ef0b735df407555aee274dec7962abf2b2a6414e11a4d565e
font_01_sfnt_off00006db0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DB0 19196 bytes
SHA-256: 3f0ce29613b23ffb3a8845c9af234a72d67f68a1351e8bc3157818d528cefff8

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