Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b4f690007ef018f…

MALICIOUS

PDF

35.2 KB Created: 2021-07-02 06:38:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: dc77b53bc8a9e5916ea64dc532dabd3f SHA-1: 5262e23666ba0da5361c82d616b779b3895ae8e5 SHA-256: 0b4f690007ef018fed4674d0fd35c4504995a468cd170e452f4432709b8010a7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to known malicious infrastructure, disguised as game hack generators. The primary lure is a link to 'cheat-engine-for-roblox-mac-game-hack'. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting potentially harmful sites, likely for malware distribution or phishing.

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/cheat-engine-for-roblox-mac-game-hack In PDF document text
    • http://lib.kunci.or.id/repository/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/how-do-you-finish-getting-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/free-games-at-robloxcomdeveloper-tools_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/roblox-hack-heroes-online-spin_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/get-free-robux-gg_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/robux-gratis-sin-hacks-2021_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/free-stuff-in-roblox-catalog-2021_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/welcome-to-roblox-building-hack_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/free-cool-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/can-people-hack-your-computer-through-roblox_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/free-old-roblox-accunts_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/tiktok-free-8-ball-pool_GM835599320.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/but-to-legit-get-free-builders-club-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/cheap-free-easy-robux_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/coinmasterdailyfreespins-com_GM406889139.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/free-robux-simulator_GM431946152.pdfIn PDF document text
    • http://lib.kunci.or.id/repository/blox-fish-free-robux_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_off00003235.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3235 22392 bytes
SHA-256: 2404480babb11efed883745e86ac11042df56cd53b1dd9c6b37d6f8c1a0a9acd
font_01_sfnt_off00006436.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6436 19236 bytes
SHA-256: d5aad7095e3001ace8ed580e12537704f7adb9e1e1441f1a18c2146b4528fd9a

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