Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e47abd6a554faa9…

MALICIOUS

PDF

34.2 KB Created: 2021-06-19 17:44:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d3193b9376ada8c68d1a99d77d710053 SHA-1: a0686cd022f64ebeccf9c91d1536ff7ab9de86eb SHA-256: 5e47abd6a554faa91bea99f5877faab9d7c35befa6baa9e17255cb1f2b2a9fd7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free Robux and game hacks to entice users to click on embedded links. The primary link directs to a known malicious redirector infrastructure, likely serving as a gateway to further malicious content or downloads. The document's content and embedded URLs strongly suggest a phishing or scamming attempt, potentially leading to credential theft or malware installation.

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-robux-hacker-typer-script-game-hack In PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/free-roblox-clothes-girl_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/how-to-get-free-snacks-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/how-to-hack-coin-master-spin-ios_GM406889139.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/minecraft-classic-free_GM479516143.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/free-robux-earn_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/how-to-get-free-spins-on-coin-master-2021-links_GM406889139.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/i-want-free-robux_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/wie-bekommt-man-free-robux_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/play-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/minecraft-hacks-for-2b2t_GM479516143.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/roblox-redeem-codes-free_GM431946152.pdfIn PDF document text
    • https://www.jjautomation.in/uploaded_files/userfiles/files/daily-free-spin-link-in-coin-master_GM406889139.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_off00003104.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3104 21196 bytes
SHA-256: 77d22f56ee76ae5b4c0b318228cf85f9cf253821726adb6a1db21bc1f2169f04
font_01_sfnt_off00005f2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F2F 19464 bytes
SHA-256: 55b50ae8bd634b4b77cb49565a69045864e2c5c8b8a639d3b9d8f7d344d9ee2c

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