Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4ae04464879dcfc…

MALICIOUS

PDF

34.4 KB Created: 2021-07-01 09:43:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f3a4c1b4d80b1305ebfffc60e68811e4 SHA-1: 12c5010da08d0e7a171f08288ad32500a5d73267 SHA-256: a4ae04464879dcfcba62c15cb34a8e25d90e5f93a3784108b27816171dd0c532
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links and text referencing game hacks and free in-game currency, specifically targeting popular games like Roblox. The primary link directs to a known malicious redirector infrastructure, indicating a phishing or scam attempt. While no scripts were extracted, the document's structure and embedded URLs strongly suggest a social engineering attack designed to lead users to potentially harmful websites.

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-do-i-hack-a-roblox-account-game-hack In PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/coin-master-free_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/minecraft-client-download_GM479516143.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/roblox-how-to-hack-into-gallant-gaming-account_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/roblox-life-hacks_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/cheat-codes-for-roblox-2021-ro-city_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/roblox-robux_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/admin-command-for-free-robux_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-robux-apk_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/https-iosgodscom-topic-20218flipmastercoinshack_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/cheats-for-roblox-high-school_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/cheat-codes-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/tiktok-like-bot-free_GM835599320.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/2021-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/3-roblox-games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/www-robux-tv-free-robux_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/the-test-roblox-free_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-roblox-no-virus_GM431946152.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
font_00_sfnt_off00002eb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB7 22364 bytes
SHA-256: 09691bbc9806dff74be9e9175f602641cacff91096f586a9e1a2129e0e914797
font_01_sfnt_off0000608c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x608C 19232 bytes
SHA-256: 557b9da23e1a8ea0ed3b11672993e3946864ab778e154f26dd17faac8a5d9827

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