Malicious PDF — malware analysis report

Static analysis result for SHA-256 f862baa165f782c0…

MALICIOUS

PDF

30.3 KB Authoring application: OpenOffice Draw
MD5: 7ece46d24279c5163eaa41fd09bb2b5d SHA-1: 53549533ce55af59d0e9fe7c421713d095bd118b SHA-256: f862baa165f782c05441051ec64756effb0659f12c0b44f4c4e1619fa9b539d4
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further indicates malicious intent. The primary goal appears to be directing users to a network of linked PDF documents, likely for SEO spam or to distribute further malware. No scripts were extracted from this sample.

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://micahrichman.com/uploads/1/3/0/4/130436271/126a00b242407e.pdf
    • http://rayceramics.com/uploads/1/3/0/6/130621794/91688.pdf
    • http://pubo.kliningovaya-kompaniya.pro/uploads/2020/01/28/tatenapos.pdf
    • http://holyfamilylearningcenter.com/uploads/1/3/0/6/130621083/mofusujesov.pdf
    • http://no-drift.com/uploads/1/3/0/5/130590763/9247761.pdf
    • http://cortinasplegadizas.com/uploads/2020/01/28/3213108.pdf
    • http://naturalbirthingjoy.com/uploads/1/3/0/6/130620564/tifagum-rujafu-dakaxuwug.pdf
    • http://abetterwaytobreathe.com/uploads/1/3/0/6/130621053/mumiveladinifa_kikoxodi.pdf
    • http://petershenkinlaw.com/uploads/1/3/0/2/130287285/sevuf.pdf
    • http://arcadiagardensllclandscapinganddesign.com/uploads/1/3/0/2/130287995/130287995.html#laker+company+reported+the+following+january+purchases

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011f5.bin
708d0dcc72437bf67745993d29f1936078fdba926a0a1bb094fc273ce3b6930e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11F5 7852 bytes

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