Malicious PDF — malware analysis report

Static analysis result for SHA-256 17fde8a34f693715…

MALICIOUS

PDF

34.7 KB Created: 2021-06-28 08:29:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e2f900ce27adb732c9bacf2cf2a1be87 SHA-1: aa13153b409414fcd4f9a6159cf86b4570f99f26 SHA-256: 17fde8a34f693715becf9ffbe4069c70ee3e80d66b550050e092b94a4d93550f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free items' for popular games. The document body and heuristic firings confirm the intent to lure users to these malicious URLs. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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/how-ot-get-free-clothrs-in-the-catalog-on-roblox-game-hack In PDF document text
    • http://library.ulb.ac.id/repository/fly-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/www-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-spin-link-of-coin-master_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-hack-scripts-non-virus_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-hack-fast_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-get-robux-on-roblox-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-robux-thru-discord_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-get-free-robux-without-scams_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/hack-roblox-comment-passer-a-travers-des-murs-2021_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/is-minecraft-free-on-computer_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/uncopylocked-free-robux-hack-account_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/is-minecraft-free_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-free-spins-and-coins-group_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/best-working-roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/coin-master-free-link-facebook_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/minecraft-free-app_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_off00003058.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3058 22516 bytes
SHA-256: 486c8ea338cb449b14012d5f9b466354c7c78c79562b63d2120c643190f6fca6
font_01_sfnt_off00006287.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6287 19084 bytes
SHA-256: 26564596120b872eb2f2db141453c1f61690124d3d5e350c20a66c1c8b69cbcd