Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ae3851d0261082d…

MALICIOUS

PDF

40.9 KB Authoring application: Karbon
MD5: 4e3191dcd0fc77e159f4920e522e1d35 SHA-1: e439d1d1c8d2d409a77f12936e53bc36b676bb9c SHA-256: 0ae3851d0261082d494153fd4861a4c2dcae30ea2302d2ade44738fbc09859e0
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics, including a critical PDF_SEO_LINK_FARM rule, indicating it contains a large number of external links. The embedded URLs point to various PDF files hosted on unrelated domains, suggesting a link farm or redirection mechanism. The ML classifier and ClamAV detection further support its malicious nature, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://autoglassmasters.net/uploads/1/3/0/2/130271035/8839176.pdf
    • http://nliaustralia.com/uploads/1/3/0/6/130621300/5255317.pdf
    • http://309brightfuture.org/uploads/1/3/0/5/130551745/zizab.pdf
    • http://poumonteksa.com/uploads/1/3/0/6/130605338/8122277.pdf
    • http://emmeline-kellett.com/uploads/1/3/0/6/130621152/2187244.pdf
    • http://belatik.store/uploads/1/3/0/2/130272548/4404692.pdf
    • http://miraclecreations.shop/uploads/1/3/0/4/130488429/zolerewokoti_lisufuz.pdf
    • http://dream-job.site/uploads/1/3/0/5/130543764/6111244.pdf
    • http://rssblendr.com/uploads/1/3/0/2/130288567/debumejawasase.pdf
    • http://mychoice-thefilm.com/uploads/1/3/0/4/130483248/5217494.pdf
    • http://marketingshingle.net/uploads/1/3/0/7/130738940/gamid_xiboximuwu_toserolagaj_javobowef.pdf
    • http://ellacart.com/uploads/1/3/0/2/130273944/130273944.html#hungry+shark+world+game++apkpure

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012b0.bin
2563f71adf2865ab3761a7a8babd50d52c3031e2f99a1282266bfa69df86cd79		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12B0 8496 bytes

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