Malicious PDF — malware analysis report

Static analysis result for SHA-256 65cfb780776a9026…

MALICIOUS

PDF

34.4 KB Created: 2021-07-01 07:25:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 96e6b4d30831bab133d58208220bdd95 SHA-1: 391caa819df12ba61ee3f5bcd4039907908405b8 SHA-256: 65cfb780776a9026b0ad7d2bd6acc4fac05bbaba0bccb4fbf22229e7c71a1b3a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one identified as a malicious redirector, promising free game hacks. The document body explicitly mentions 'how to get roblox on laptop for free game hack', reinforcing the lure. While no scripts were extracted, the presence of malicious redirector links and the lure suggest the intent is to direct the user to a potentially harmful website for further exploitation.

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-to-get-roblox-on-laptop-for-free-game-hack In PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/minecraft-thumbnail-maker-free_GM479516143.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/roblox-how-to-free-adidas_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/toolbox-for-minecraft-ios_GM479516143.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/denis-free-robux-website_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/how-to-get-free-robux-inspect-element-2021_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/how-do-you-earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/hacks-para-dungeon-quest-roblox-2021_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/coin-master-free-spins-and-coins-link-haktuts_GM406889139.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/coin-master-hack-xyz-2021_GM406889139.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/free-minecraft-server-maker_GM479516143.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/free-private-server-roblox_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/how-to-hack-robux-on-ipad-2021_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/free-robux-obby-no-password-no-human-verification_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/hack-robux-2021_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/roblox-hacked-ad_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/best-maps-to-hack-fly-hack-on-roblox_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_off00002ef0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EF0 22520 bytes
SHA-256: 42d5462786485db91a23a7eb54e6163a99bd07784e4350f67196e48957bbf0f6
font_01_sfnt_off00006122.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6122 19092 bytes
SHA-256: 6958cadaec859ee59037314cf1acbba8852524867462f4e88fb2f4fbb2202555

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