Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0b8db8c3e9022f1…

MALICIOUS

PDF

48.2 KB Created: 2021-05-19 13:45:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a0e9bfa0cb17a04d523bc1093732f10b SHA-1: e766b3e28b8c644216bbde6a75a1c960dad2972a SHA-256: a0b8db8c3e9022f1e44ee728277346163e48adcb0ffa08d368350d8ae35c31e1
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector infrastructure, which is designed to lead users to a site offering a fake guide on hacking Roblox accounts. This lure is intended to trick users into downloading or interacting with malicious content. The presence of embedded URLs and a heuristic indicating a download button further supports this malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.0163

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-into-someone In 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
font_00_sfnt_off0000359a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x359A 26292 bytes
SHA-256: 2232cf8d1371b692997cf82ea6918c98d5804a9abd3db02303bbb17357c11989
font_01_sfnt_off000071d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71D4 12800 bytes
SHA-256: db399d969d9309c9c38cb6e3c43aa83c06d227a5470715de93176d1df1e6747d
font_02_sfnt_off000099b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99B1 18912 bytes
SHA-256: bf4ecd0153dd3a330a8d8544a3db10b129edd23679e66a7dba01ca4f284b0ccb