Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5aee2a18adb2a36…

MALICIOUS

PDF

32.9 KB Created: 2021-07-03 11:24:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 1bd1a4ac51e35fe7e026999f331c1da6 SHA-1: cecc5404b01520c0ac7179dcc34f3dc2471186c7 SHA-256: d5aee2a18adb2a3646f87b3a4b6030d506ad8a5a7cb26f6407b4dd4be955ff79
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, masquerading as game hacks and generators. The primary lure, 'Roblox Cheat Ore Tycoon 2', directs users to 'http://netcdn.tw/app/431946152/roblox-cheat-ore-tycoon-2-game-hack', which is flagged as malicious infrastructure. The document's content and embedded URLs strongly suggest a phishing or scam attempt to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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.tw/app/431946152/roblox-cheat-ore-tycoon-2-game-hack In PDF document text
    • https://lib.insan-unggul.ac.id/repository/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/how-to-hack-roblox-without-downloading-anything_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/avatar-animations-roblox-free_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/facebook-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/no-virus-roblox-hack-xbox-one_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/original-roblox_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/generator-robux_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/roblox-free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/will-minecraft-dungeons-be-free_GM479516143.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/dev-console-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/roblox-twisted-murderer-cheat-engine_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/coin-master-link-today_GM406889139.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/roblox-exploit-scripts_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/cheats-in-roblox-pet-simulator_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/coin-master-get-free-spins_GM406889139.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/free-robux-for-videos_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/roblox-verification_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_off00002ac7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AC7 22052 bytes
SHA-256: 165de0b9fec6acad6aa03b7ca2231bce13082a5285186657df094d061e6dec93
font_01_sfnt_off00005b77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B77 19060 bytes
SHA-256: df5c6347b2926f8b1c80c1c66f45349b0773f0a530e83687710d3f0f3f79e3f4

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