Malicious PDF — malware analysis report

Static analysis result for SHA-256 e00eaae1210945d7…

MALICIOUS

PDF

34.3 KB Created: 2021-07-03 14:12:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-02
MD5: fd6b78b42b986848a33bbf1d2f561629 SHA-1: 14009bd4de3fdd2fb5c61d32babcfc15a01f7796 SHA-256: e00eaae1210945d7487fac8f5134e8123065ab388fb76e8444d0ce0cad4305fe
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'generators' for popular games. The ML classifier strongly flagged this PDF as malicious, and heuristics indicate it's designed to lure users to a known malicious redirector. The document body and extracted URLs reinforce this lure, suggesting an attempt to trick users into downloading potentially unwanted or malicious software.

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.tw/app/431946152/roblox-avatar-girl-game-hack In PDF document text
    • https://library.itn.ac.id/perpusitn/repository/wwwcoin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-free-robux-group-funds_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-hack-2021exe-download_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-hack-tool-2021-download_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/robux-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/noclip-hack-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-free-clothes-download_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-mobile-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-no-typing-stuff_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hacker-club_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-gifts-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-mods-jailbreak_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hacks-para-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/demonius-free-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-compagnon-roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-bulbul-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-apk-with-fb-login-2021_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
font_00_sfnt_off00002f59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F59 22460 bytes
SHA-256: 545b62a4fe6cda00a07c0557cb1cee03d620360ba21735dd96165011b1298217
font_01_sfnt_off000061ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61AC 18824 bytes
SHA-256: f742d3aab86b275048e6daff1a328edca09eda633fd32c5e4719e48b1a5fa380

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