Malicious PDF — malware analysis report

Static analysis result for SHA-256 0209494ae80d262f…

MALICIOUS

PDF

33.4 KB Created: 2021-06-28 18:11:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: dc436b6b3002e8080d5a316fdedc2ebf SHA-1: 4eca999488409e7ca7dff317c8861bd8280d2380 SHA-256: 0209494ae80d262f152eef5047011a7f085c840c96826367c8e834a992659640
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to websites that are flagged as malicious redirectors, specifically advertising game hacks and free currency generators. The document body and embedded URLs strongly suggest a lure to trick users into visiting these sites, which likely host further malicious content or facilitate malware downloads. No scripts were extracted, but the PDF structure and URL analysis indicate a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/roblox-inf-health-hack-game-hack In PDF document text
    • http://katalog.stikesmukla.ac.id/repository/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-roblox-scripts_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/omplete-surveys-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/mcpe-download_GM479516143.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/download-coin-master-apk-hacked_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-version-of-synapse-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/roblox-hack-exploits_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master-hack-free-spins_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/how-to-get-free-robux-on-phone-android_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/can-cheat-engine-get-you-banned-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master-hack-safe_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/pubg-uc-2021-free_GM1330123889.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/roblox-catalog-hacks-thumbnail_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/download-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/fun-free-games-like-roblox_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
font_00_sfnt_off00002d33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D33 22020 bytes
SHA-256: 6df093a26d30dc3ceca177a34e8a6c0d083433094764e17e0517b354bfb03cf8
font_01_sfnt_off00005de1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE1 18928 bytes
SHA-256: 7431ea2f60cdaac2b6d5486c87f3d97e58e34d9a72b05547b7e3d0fc2a0fc9b9

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