Malicious PDF — malware analysis report

Static analysis result for SHA-256 b80a8122eacb520d…

MALICIOUS

PDF

47.1 KB Created: 2021-05-21 19:59:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 40c17365e30eece0b8bdb2c397c2de32 SHA-1: e34ce38adfdcd88c38be5afd3fde00581c5ddf31 SHA-256: b80a8122eacb520db4dc009d81cba34e2cd32809abe4673109d5805b68cf6a0b
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links and text promoting a "Roblox Account Hack" and "Robux Generator", directing users to malicious URLs. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms these links point to known malicious infrastructure. The document body also contains obfuscated text and URLs, suggesting an attempt to disguise the malicious intent and deliver a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7358

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 https://netcdn.xyz/app/431946152/how-to-hack-someone In PDF document text
    • http://aviaprofsoyuz.info/images/coin-master-apk-mod_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/master-coin-hack_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/coin-master-online-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003488.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3488 37420 bytes
SHA-256: 9abd8fe5cb9c15662cc57c209228224f65d0fef20e279d14aebc937af1f1a7e6
font_01_sfnt_off00008887.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8887 3656 bytes
SHA-256: 63a179d8a9645bea05c6d53b1776faf4e4a7281930de6cf484e639846bec2e20
font_02_sfnt_off00009541.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9541 18912 bytes
SHA-256: 9f53b096903929334954973b1f22b9a4d0ba47253044b0676b0b61e1e4f10122

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