Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaa579dd193756f7…

MALICIOUS

PDF

46.1 KB Created: 2021-05-16 09:02:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d575c1ca56546956ec81c67b98d6adf7 SHA-1: 84e93db82f8c28b0574ed0aed786d4be7e8cce6e SHA-256: eaa579dd193756f7abc5153a5141dd2108fe318fb55d452f10691ca765824c93
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to malicious infrastructure, masquerading as game hacks or generators. The document body and extracted URLs indicate a lure for free Robux and game cheats, a common social engineering tactic. While no scripts were explicitly extracted, the PDF structure and heuristic firings suggest it's designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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 https://netcdn.xyz/app/431946152/how-to-get-free-robux-game-hack In PDF document text
    • http://knjiznica-oroslavje.hr/files/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/coin-master-hack-apk-april-12-2021_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/roblox-free-no-download_GM431946152.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/free-money-links-coin-master_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/free-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/is-minecraft-free-on-pc_GM479516143.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/gain-robux_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/free-minecraft-accounts-reddit_GM479516143.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/coin-master-free-link-facebook_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/do-coin-master-hacks-work_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/get-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/websites-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/minecraft-games-free-download_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A42 27028 bytes
SHA-256: e71d3b1f308e5000ca1e30a925ad28c16010cca10cbe6c1920ddb9090ec275e3
font_01_sfnt_off000087d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87D4 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00009185.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9185 18280 bytes
SHA-256: 2eeeedfcb2f224ab556fa0ab031baeab03f86dcbcf90e3baaaf5b6d88536dec3

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