Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b3dae06056a82aa…

MALICIOUS

PDF

42.6 KB Created: 2021-05-17 12:39:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 682cf40c1e8fde72df210b9d8bd72959 SHA-1: be5b30bc226cac2072633b53aca0d135a8eaf2d6 SHA-256: 7b3dae06056a82aa8a5e5f5520ebc90048640ff9952db4db6eed2eac7ee4e8fa
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and game hack lures, indicating a phishing or scam attempt. The embedded URLs, such as https://netcdn.xyz/app/406889139/coin-master-time-hack-2021-game-hack, are designed to lead users to potentially harmful content or further malicious sites. The ML classifier also strongly indicated maliciousness.

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-time-hack-2021-game-hack In PDF document text
    • http://esm-royet.de/images/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://esm-royet.de/images/how-to-get-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://esm-royet.de/images/coin-master-time-hack-ios_GM406889139.pdfIn PDF document text
    • http://esm-royet.de/images/coin-master-free-download-pc_GM406889139.pdfIn PDF document text
    • http://esm-royet.de/images/coin-master-hack-here_GM406889139.pdfIn PDF document text
    • http://esm-royet.de/images/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://esm-royet.de/images/easy-robux_GM431946152.pdfIn PDF document text
    • http://esm-royet.de/images/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://esm-royet.de/images/coin-master-hack-without-verification-code-2021_GM406889139.pdfIn PDF document text
    • http://esm-royet.de/images/roblox-demon_GM431946152.pdfIn PDF document text
    • http://esm-royet.de/images/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://esm-royet.de/images/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • http://esm-royet.de/images/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://esm-royet.de/images/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • http://esm-royet.de/images/real-robux-generator_GM431946152.pdfIn PDF document text
    • http://esm-royet.de/images/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://esm-royet.de/images/daily-coin-master-free_GM406889139.pdfIn PDF document text
    • http://esm-royet.de/images/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • http://esm-royet.de/images/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • http://esm-royet.de/images/minecraft-free-download-iphone_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004760.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4760 27016 bytes
SHA-256: dbf0c4c332615a72d8432509bc17287d291e422470ae09752ca22d9a109b3b0d
font_01_sfnt_off000083d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83D2 18380 bytes
SHA-256: d61a4547520ea8cafecc3ed258c73b3244e9bc9b68d98ecd8e3226df3b2774a6

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