Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2872096552ae890…

MALICIOUS

PDF

42.8 KB Created: 2021-05-19 02:28:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d222211b4b73499779a1298bf192d2fb SHA-1: 6a4fde4701870532e5b075053af836d158affbe2 SHA-256: e2872096552ae890c63d792f461f0a4aaad730dc902552551e1861f76f372b96
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple links to known malicious redirectors and infrastructure, disguised as offers for game hacks and currency generators. The ML classifier also flagged this PDF as malicious. The embedded URLs likely lead to further phishing or malware download pages, indicating a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/835599320/is-tiktok-free-on-app-store-game-hack In PDF document text
    • http://autoskola-scp.com/files/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/hack-coin-master-mod-apk_GM406889139.pdfIn PDF document text
    • http://autoskola-scp.com/files/coin-master-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://autoskola-scp.com/files/coin-master-daily-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://autoskola-scp.com/files/earn-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/free-roblox-gear_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/minecraft-com-free_GM479516143.pdfIn PDF document text
    • http://autoskola-scp.com/files/how-to-get-free-minecraft-coins_GM479516143.pdfIn PDF document text
    • http://autoskola-scp.com/files/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/robux-free-2021_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/how-to-get-free-skins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://autoskola-scp.com/files/fb-coin-master_GM406889139.pdfIn PDF document text
    • http://autoskola-scp.com/files/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
    • http://autoskola-scp.com/files/how-to-get-2021-robux-for-free_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/free-spins-coin-master-twitter_GM406889139.pdfIn PDF document text
    • http://autoskola-scp.com/files/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/minecraft-pc-download-free-full-version_GM479516143.pdfIn PDF document text
    • http://autoskola-scp.com/files/free-minecraft-shaders_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000046d0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46D0 29376 bytes
SHA-256: 3a11bccc55c0f2b1ebf0b367a04e9e4c0fb33e6bf346d762b53a5c86e2e3c208
font_01_sfnt_off000086eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86EB 17632 bytes
SHA-256: e8c6eee6cd6717d1ce077eddd3560ac895648d5611c4b94ca6b7e1a3eefadb24

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