Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8f929d6ddd854c5…

MALICIOUS

PDF

34.0 KB Created: 2021-06-20 12:47:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f8444c5313d066e89a5f36684ef31db1 SHA-1: 6ca01dd13753a6e12c2c7df2440b422073cf0af8 SHA-256: d8f929d6ddd854c5d21bdcdb82e0f5dedbc422195a34042f0b2b0069916092de
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains embedded links that redirect to malicious infrastructure, specifically promoting game hacks and generators for popular games like Roblox. The document body and heuristic firings indicate a lure to download potentially unwanted or malicious software. The primary IOC is the redirector URL used in the lure.

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/download-roblox-for-free-on-laptop-game-hack In PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/free-minecraft-account-list_GM479516143.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/are-decals-free-to-upload-roblox_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/free-robux-xyz_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/best-sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/is-it-possible-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/robloxbux-us-generator_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/como-ser-hacker-en-roblox_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/mcpe-master-coin-hack-apk_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/free-roblox-toy-codes_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/free-robux-master_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/hack-roblox-robux-jailbreak_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/coins-master-hack_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/watch-ads-for-robux_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/coin-master-apk-hack-2021-ios_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/robux-free-co_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/hitbox-expand-hack-roblox_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/free-apk-mods-coin-master_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/how-to-get-all-pass-for-free-in-greenville-roblox_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/coin-master-free-spins-and-coins-link-blogspot_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_off00002f13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F13 21528 bytes
SHA-256: a2d3cc5ed6f4b0eeb6c9c650b2d1c335a307256487320168becdcd00915cb66a
font_01_sfnt_off00005e62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E62 19436 bytes
SHA-256: 963ec20353ed2e401fc672a4da4d49cc4bb884defefbd97a58371e8575c78eae

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