Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca10b518d2611105…

MALICIOUS

PDF

33.3 KB Created: 2021-06-28 02:21:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 33a92fca2c14fd8a45d94e20ff5319fe SHA-1: 115102ec4db516b6cc025d3b236fec50f078383f SHA-256: ca10b518d26111053a7de644a953f22feb667f28104c4e6f7bfd1f7ac2e33453
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs that lead to a known malicious redirector. The document body and heuristics indicate a lure related to game hacks and free currency, likely intended to deceive users into clicking the malicious link. No scripts were extracted, but the presence of embedded URLs and the nature of the lure suggest an attempt to redirect users to a malicious site for further exploitation or phishing.

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/comment-hacker-roblox-sans-logiciel-youtube-game-hack In PDF document text
    • https://library.elkatarie.ac.id/repository/free-card-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-robux-promo-codes-list-2021_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-robux-only-username_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/www-free-robux-com_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/minecraft-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/hack-cuentas-gratis-en-roblox-pastebin_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/how-2-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/how-to-really-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-coin_GM406889139.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-roblox-accounts-2021-august_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-level-7-executor-roblox_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/games-that-give-you-robux-for-free_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/butterfly-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-gift-card-numbers-roblox_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/how-to-get-free-robux-no-hack_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/robux-hacks-for-pc_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/how-to-download-minecraft-for-free-on-iphone_GM479516143.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_off00002b6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B6E 22184 bytes
SHA-256: e56f7fd674f85b000e7b525156c6ef27e9f49b5a1be8c36f43d7cd5e553f8902
font_01_sfnt_off00005c59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C59 19440 bytes
SHA-256: 3caed4c5caa62aee8b2b932d6592a510c7d519455c4eac339e52e142eee9a4c2

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