Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc3befd231755435…

MALICIOUS

PDF

34.5 KB Created: 2021-06-30 10:59:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 83c9e736c1c0abab5e4b9d1ecd20847e SHA-1: 31665cccdaa272d6be2a547f6b8beddf47568aec SHA-256: fc3befd2317554354d5475b1081f0f396c655987b919502c85c65bf054416485
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains links and text that lure users with promises of game hacks and free currency, directing them to external URLs. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' and the embedded URLs strongly suggest a phishing or malware distribution attempt. While no scripts were explicitly extracted, the nature of the lure and the presence of multiple suspicious URLs indicate a high likelihood of leading to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/how-to-hack-roblox-to-find-old-password-game-hack PDF link annotation
    • http://perpus.wdh.ac.id/repository/cm-daily-spins_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/minecraft-free-school_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/click-to-kill-roblox-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-can-you-get-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-free-robux-hack-android_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/coin-master-hacks-android_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-ranks-up-in-a-roblox-group-hack_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/coin-master-free-spins-iphone-2021_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/free-coin-master-account_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-kick-a-hacker-in-a-server-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-robux-no-password-or-username-may_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/minecraft-client-download_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/www-free-robux-com_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/ruso-ico-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-hack-a-roblox-server-2021_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/infinite-jump-roblox-download-free_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000305c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x305C 21928 bytes
SHA-256: eb1d784cc627aa2155d4234d95bbd928ef4990a8d5797eda52a7fd0c9cbe9b05
font_01_sfnt_off00006097.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6097 19432 bytes
SHA-256: 189af8016d7a4e0264c4afc9392dd36670bc0285301b3cf6d2555fc222e4dcc5

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