Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b5798d0764e455a…

MALICIOUS

PDF

35.0 KB Created: 2021-07-07 08:21:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 414e96447a8e4e18f4c5e8a203b882f1 SHA-1: a6d55b0c5a57ea689e3a4a7d120d8d3460d2dcbb SHA-256: 9b5798d0764e455a031e65debc55adf29cd496c537663f2e9bda12f9e9249cb6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on what appears to be a 'free generator / game hack'. The primary link redirects to known malicious infrastructure, indicating a phishing or scam attempt. The document's content and embedded links strongly suggest a social engineering tactic to drive traffic to potentially harmful sites.

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.tw/app/431946152/free-roblox-hack-without-human-verification-game-hack In PDF document text
    • https://lib.stie-yai.ac.id/repository/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-rewards_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-link_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/tiroblox-cheats-for-robux-and-tix-robloxcheatsnet_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/nonsei-diamond-hack-roblox_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-free-adidas_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/coin-master-freebies-2021_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-cheat-engine-phantom-forces_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/get-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/mega-hack-roblox_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/20210-free-spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-booga-booga-instant-kill-hack_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_off000030a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30A3 22284 bytes
SHA-256: 622199b16bff67506d30331202e9d3c20a0a16de379df8db032837988a484cf1
font_01_sfnt_off00006202.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6202 19756 bytes
SHA-256: 12bb1662338f55ea4f2515d76627afc6ce291b31db649fb353ffd0aad62649a4

Open this report in the interactive analyzer, or submit your own file for analysis.