Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bc60a99ea907059…

MALICIOUS

PDF

35.3 KB Created: 2021-06-28 03:45:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: cc1d8fbf42f0634b0174756cbcf41a2b SHA-1: bb2fa7c1e6bbfeace7453c5a127f77cd23bf50b6 SHA-256: 1bc60a99ea907059e5f5a3d7d10cbaeb4019a00363ea122868ab9a7f6cc8db9a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to external websites, including one identified as a malicious redirector. The document body advertises 'Free Hacks For Roblox' and includes a call-to-action, suggesting a lure for users to download potentially unwanted or malicious software. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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/download-free-hacks-for-roblox-game-hack In PDF document text
    • http://pustaka.pn-calang.go.id/repository/free-expert-sripters-roblox_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/cheat-codes-for-roblox-mad-city-cash_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-apk-mod_GM406889139.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/how-to-get-verified-on-tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/robloxcom-free-kkk-k-k-k-k-m_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/harked-roblox-script-free_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/oprewards-com-roblox_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-get-minecraft-windows-10-for-free-with-java_GM479516143.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/roblox-hack-999999-robux-pc-2021-august_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/i-am-hacking-roblox-jump_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/pig-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/robux-no-survey-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/how-to-hack-games-on-roblox-2021_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_off0000314f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x314F 22728 bytes
SHA-256: 331db4b086d8323bcf5e033d3cc263349d8d9e270935fcd06368592a0091d006
font_01_sfnt_off0000640c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x640C 19328 bytes
SHA-256: 5e3880e94e11bbebfb8b83d5c358f28ce86e6994d068840244fa467f0bcf672c

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