Malicious PDF — malware analysis report

Static analysis result for SHA-256 e986c978bf83f29e…

MALICIOUS

PDF

43.6 KB Created: 2021-05-15 13:53:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bda92faa4f0907d3f3119affe50df166 SHA-1: a5b2c5a774eb595eb8834b51728765e07d2aaeb0 SHA-256: e986c978bf83f29eac4b03570e14b64a37627c7fbdffa5c770a8174fd8d3e6a4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to malicious redirectors, masquerading as game hacks and generators for popular games like Roblox and Minecraft. These redirectors host further malicious PDFs, indicating a chain of lures designed to trick users into downloading potentially harmful content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/roblox-games-with-free-boombox-game-hack In PDF document text
    • http://m-sv.net/images/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/earn-robux-websites_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/coin-master-hack-app-for-ios_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://m-sv.net/images/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
    • http://m-sv.net/images/free-games-like-coin-master_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://m-sv.net/images/coin-master-free-spins-fb_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/free-robux-download_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/free-robux-without-verify_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/generator-robux_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/coin-master-unlimited-spin-hack_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/free-robux-reddit_GM431946152.pdfIn PDF document text
    • http://m-sv.net/images/coin-master-free-spins-today-new_GM406889139.pdfIn PDF document text
    • http://m-sv.net/images/easy-ways-to-get-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
stream_003_off0000485d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x485D 26856 bytes
SHA-256: 8df8f82abe47a213e88cfca14216e88ca00e4e3d85fac6807a5e7bc0b811ccf2
font_01_sfnt_off000085f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85F9 19024 bytes
SHA-256: f19becf6ce6933bb0ac9725c8bd55fde31cd7c8868717e467a8d53035955367c

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