Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bd3ff212f97f8f2…

MALICIOUS

PDF

33.6 KB Created: 2021-06-25 02:23:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7368f4a7d50e1a2c58e54b7110b63fa4 SHA-1: 74da82bb5d53a251de331aae3e70f79d4a715722 SHA-256: 2bd3ff212f97f8f267406152bf5825372b4f62e104982c6d0c19a8eded9d98cb
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a link to a known malicious redirector, which is designed to lead users to download potentially harmful files. The document body and embedded URLs suggest a lure related to game hacks and exploits, such as for Roblox. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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/hack_box-roblox-game-hack In PDF document text
    • http://ofthalmiatrosthess.gr/images/lazyblocks-com-free-robux_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/free-legel-robux_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/roblox-exploit-cheat-engine-67_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/2021-how-to-free-admin-commands-to-your-roblox-gane_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/all-of-the-free-wings-on-roblox_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/minecraft-free-download_GM479516143.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/how-to-invisible-hack-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/minecraft-pc-download-free-full-version_GM479516143.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/how-to-get-free-bc-roblox-2021_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/hack-para-roblox-2021-abril_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/free-robux-2021-game_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/robux-hack-no-verification_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_off00002d89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D89 22328 bytes
SHA-256: a3803076572287934edc85fae7186e8816b59074163a4b4303543dda87a6811d
font_01_sfnt_off00005f40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F40 18688 bytes
SHA-256: e1de0fd4e788275469ab36c97f489ee133026dc0fbd9e21cc3907c0f32dd0073

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