Malicious PDF — malware analysis report

Static analysis result for SHA-256 b452eab86afb2fee…

MALICIOUS

PDF

33.7 KB Created: 2021-06-22 14:37:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5c78500f088c733c5db4ee22697b36cf SHA-1: 1ba1cc11b5875bfe3882d35d8bb8acc9da321461 SHA-256: b452eab86afb2fee2376410942c2fdca50a63bc3f3c64c698c85616e6ff52bb9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that are flagged as malicious redirectors, specifically targeting users with lures for game hacks and in-game currency. The document body explicitly mentions 'Roblox Cheat Codes For Robux And Tix 2021' and includes a primary malicious URL. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a phishing or malware distribution attempt.

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/roblox-cheat-codes-for-robux-and-tix-2021-game-hack In PDF document text
    • http://stansabbiatura.com/images/roblox-redeem-codes-free_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/how-hack-items-on-roblox_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/how-to-get-free-skins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://stansabbiatura.com/images/pubg-uc-in-pakistan_GM1330123889.pdfIn PDF document text
    • http://stansabbiatura.com/images/roblox-meep-city-cheats_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/send-me-500-2021-spins_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/roblox-cheats-devloper-console_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/cheat-engine-2021-roblox_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/roblox-free-login_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/minecraft-free-school_GM479516143.pdfIn PDF document text
    • http://stansabbiatura.com/images/hacker-roblox-face_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/codes-to-get-free-robux-may_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/coin-master-apk_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_off00002ca2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA2 21732 bytes
SHA-256: b94dfa8800318f552924f51b44958703ee50fccd3330ddddf507b4b8c568d0ed
font_01_sfnt_off00005c87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C87 19756 bytes
SHA-256: d45fcd50e0d805ec640144aac2a725818bd24ad6c4766e6b1ac6691ab1870bf8

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