Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ce529734f83b462…

MALICIOUS

PDF

32.6 KB Created: 2021-06-21 04:05:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 8940074df5fbdaddcba9471be4f71bd3 SHA-1: 78dd91f539b6ba3b3dbd5a5c71422a71fabbf52e SHA-256: 2ce529734f83b462b26903f097745b8cac418249e4606f0157e249724d9602a8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting 'free generators' for games like Roblox. The presence of a call-to-action button and the ML classifier's high confidence score indicate a malicious intent to trick users into visiting these sites. No scripts were extracted, but the document's structure and embedded URLs strongly suggest a phishing or scam lure.

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.co/app/431946152/free-roblox-synapse-game-hack In PDF document text
    • https://javisintlmedia.com/images/how-to-find-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-hack-roblox-for-robux-2021_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/roblox-speed-cheat-engine_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-robux-website_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-hack-coin-master-spin-ios_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/hack-100-robux_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-robux-scam_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/apk-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/www-coin-master-hack-tk_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-roblox-gift-card-codes_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-roblox-tshirts_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/cheat-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-roblox-clothes-girl_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/roblox-deadzone-hack_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/robux-hack-computer_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-35-13-hack-download_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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_off00002954.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2954 22248 bytes
SHA-256: ea068d4230ae597db4f8e877fecaf3334cdee806e6bcb4bc145508819b1e2a98
font_01_sfnt_off00005acb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ACB 19008 bytes
SHA-256: fed0d7bd6d5b5158a4f111be1dceaf9fbf683a924cbf80855bd3de10967eb40c

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