Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6d0a82bd9d9f204…

MALICIOUS

PDF

37.1 KB Created: 2021-05-11 04:35:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 4424c330fb9b587dcf38d8e73f73e5eb SHA-1: f5bcdb668f667fecc4b921faa695d7b63e0c4322 SHA-256: c6d0a82bd9d9f204c6352cdb1d4abc073a06a213c2e591abb4568e7ac0f2724a
110 Risk Score

Malware Insights

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

The PDF contains a heuristic match for a malicious redirector link pointing to 'https://netcdn.xyz/app/431946152/robuxmatch.con-game-hack'. Additionally, it displays a fake CAPTCHA, a common social engineering tactic to trick users into interacting with malicious content. The document body also contains text and a link that appears to be a lure for a 'Roblox Generator'.

Machine Learning

  • Nyx PDF Classifier clean score 0.0313

Heuristics 4

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/robuxmatch.con-game-hack In 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
stream_003_off00002f9e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F9E 28856 bytes
SHA-256: 9d54b6c16387236bd79d55e9a285632c324a663b1495cdeafdc4e170eab6f9ee
font_01_sfnt_off00006e80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E80 18672 bytes
SHA-256: b3ad435d94df059fa4f5f4039152be4ff635e0c8c599297d8dd6c4123da1a60e

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