Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bbf8def97b4c02b…

MALICIOUS

PDF

41.3 KB Authoring application: Poppler-utils
MD5: 0b9a5e2da94e6e712e4f445411895a9d SHA-1: cbf5f770ff52c83e6471a5e415dd24f759bd690e SHA-256: 6bbf8def97b4c02b4daa8bf35a29d7a1acc1cbe54d4493ea5bc691c2d261d713
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier and ClamAV detection strongly suggest malicious intent, specifically identified as phishing. The embedded URLs likely lead to further malicious content or phishing pages, aiming to exploit users through deceptive links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://fibromyalgiamadesimple.com/uploads/1/3/0/6/130620662/29dd065014de.pdf
    • http://mrandersonllc.com/uploads/1/3/0/6/130620159/gasonizutegodisureji.pdf
    • http://decorativeoutfitters.com/uploads/1/3/0/3/130313746/tejekizad-sonir.pdf
    • http://dopeshoppingmadeeasy.com/uploads/1/3/0/2/130288317/0b7b8aa701.pdf
    • http://reboundat.com/uploads/1/3/0/4/130489377/zupijutovupip.pdf
    • http://danielshanethomas.com/uploads/1/3/0/6/130621606/lefofexazuledof-vokuwema-lavijimuverit-zulike.pdf
    • http://doorandwindowplus.com/uploads/1/3/0/5/130588922/130588922.html#mpq+champion+rewards+list
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001175.bin
3b1710c6e13ac28cc798d7157f75d3206fc47c6009e2ecda01d1ca5435941455		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1175 8908 bytes
font_01_sfnt_off00005b19.bin
6db2f878e0fd57d3a351d0d81a5ccd7b58f68df6728dadc3aee3ebeb1a1d6e60		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B19 16068 bytes

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