Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccdc47b091fe12af…

MALICIOUS

PDF

44.3 KB Created: 2021-06-04 03:00:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 6cc5b9878aec4fe1925a166565a21642 SHA-1: 1577a85abc8e40c017629a599320ec8b520bbe18 SHA-256: ccdc47b091fe12af7eb41945ae866afdf93d54538bcce0e6c75df1d7debf413a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The ML classifier also flagged this PDF as malicious. The primary attack pattern involves tricking the user into clicking a link that leads to potentially harmful content or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/406889139/blogger-free-spins-and-coins-game-hack In PDF document text
    • http://ebook.itn.ac.id/repository/minecraft-xbox-one-code-free_GM479516143.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/cmaster-club-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/inappropriate-roblox_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/roblox-character-free_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-gfx-roblox_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/coin-master-game-hacking_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/online-coin-master-free-spin-app_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/roblox-devil_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/rbx-land-free-robux_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/coin-master-free-spin-link-today-download_GM406889139.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_004_off00005201.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5201 24692 bytes
SHA-256: ffcc05b9be338c5c39b6f0e35fda3305f7bd868f4673a8880699c9c97b082c44
font_01_sfnt_off00008abd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ABD 18304 bytes
SHA-256: 6e101829674d2a0991648ef9ebab65d62fb09ad10f4ed7016658149130c5c924

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