Malicious PDF — malware analysis report

Static analysis result for SHA-256 59aa94d9b27f77f9…

MALICIOUS

PDF

35.4 KB Created: 2021-06-26 00:01:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 08e92ff8dcdf8f183c0ab85ec6270be1 SHA-1: 36c3db82f22e9e4c38b57fb17f7175ee3ff820d2 SHA-256: 59aa94d9b27f77f98019f4d7537b49667980c42c60994a21aff0bcb3cb6080e6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links disguised as offers for free game currency and hacks. These links redirect to malicious infrastructure, specifically a known redirector, indicating a phishing or scam attempt. The document body and embedded links strongly suggest a lure for users seeking in-game advantages, which is a common social engineering tactic.

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-no-password-required-game-hack In PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/easy-robux-cheat_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/hacking-menu-for-roblox_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-infinite-health-cheat-engine_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/robloxian-roblox-hacks-robux_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/cheats-for-roblox-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-levitation-animation-roblox_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/facebook-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/are-the-surveys-for-free-robux-real_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/blogger-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-robux-batu-kol-faki_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-inappropriate_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/hack-robar-cuentas-de-roblox-akaka_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-wknd-strucid-alpha-roblox-lua-script_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-get-free-robux-on-xbox-one-2021_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/coin-master-game-hack-version-download_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-free-items-glitch-2021_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_off00003163.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3163 22624 bytes
SHA-256: ee6d6945d18a8f8037badde5b9959c9569497619b92b5af91e9dc366954b8ce1
font_01_sfnt_off000063ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63EA 19496 bytes
SHA-256: f33a7f7b3d479aef3f4bf694a0aaab4d921ed6a4ebf7b7d14de3666854a6bd08