Malicious PDF — malware analysis report

Static analysis result for SHA-256 7db127fe5d470888…

MALICIOUS

PDF

35.8 KB Created: 2021-06-27 22:28:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: a3e62f5c4c38645090b2081751accef6 SHA-1: 6b9490b8003d26750e63ac5627e08147c8c79e5e SHA-256: 7db127fe5d470888ed1417e6f63f1c8b5852f23c5b9948840c9d115c5b1dbd06
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to a known malicious redirector. The document body, though partially corrupted, contains text related to free game accounts and includes the same redirect URL. This indicates a phishing attempt to lure users to a malicious site.

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/free-roblox-accounts-passwords-game-hack In PDF document text
    • https://opac.itp.ac.id/repository/hacking-codes-for-roblox-ban-admin_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-roblox-exploits_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/coin-master-free-coins-spins_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-robux-clicker_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/robux-hack-deutsch-youtube_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-robux-generator-codes_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/cheat-codes-for-roblox-on-phone_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-roblox-account-with-ultimate-driving-cars_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/robux-rewards_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/coin-master-free-spin-now_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/how-to-get-free-coins-in-minecraft_GM479516143.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/roblox-games-that-give-you-free-stuff_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/roblox-accpunt-hack_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-robux-no-severva_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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_off00003401.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3401 22484 bytes
SHA-256: cfb03bf347b4f59875a18c68447e5e4570f118858a9601f502a8deac6781208c
font_01_sfnt_off00006617.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6617 19384 bytes
SHA-256: 7a50b9bfb461cf1babba035054b24d81d54e7288a6f1e8178b3b9af2e02fb97c

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