Malicious PDF — malware analysis report

Static analysis result for SHA-256 02223a1db28b3d5d…

MALICIOUS

PDF

34.9 KB Authoring application: Scribus
MD5: 4c804a7f11a26bc61d8e2f52d35bd7b8 SHA-1: 6869dcb156fffc36b16c6fc7976e50c4557438fd SHA-256: 02223a1db28b3d5d343dace7e7bc503fe5252bd2683d8ef455b23b5ed952fc57
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute malicious content. ClamAV detected this as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', and a machine learning classifier also flagged it as malicious. The embedded URLs are the primary IOCs, suggesting a campaign focused on redirecting users to external resources.

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://www.gendernaturalist.org/uploads/1/3/0/6/130639934/a0205.pdf
    • http://spiritualdirectionminstry.com/uploads/1/3/0/5/130551241/e017846028.pdf
    • http://legacyandalchemy.net/uploads/1/3/0/4/130483354/papopakasegeruwumawu.pdf
    • http://mindfulevolution.net/uploads/1/3/0/5/130540159/410f2d09b1.pdf
    • http://agelessiq.com/uploads/1/3/0/2/130272242/turozije-gifaben.pdf
    • http://southsidebrewing.net/uploads/1/3/0/2/130288453/zimapewufojitolomore.pdf
    • http://tfamcon.com/uploads/1/3/0/5/130544086/b2c9c.pdf
    • http://airnowli.com/uploads/1/3/0/8/130874254/e85598c9.pdf
    • http://oeisschool.com/uploads/1/3/0/8/130814283/1e796b496db14.pdf
    • http://tohrurainer.com/uploads/1/3/0/3/130313149/bejizo-lupatoto.pdf
    • http://thebradfordwatch.com/uploads/1/3/0/7/130739080/5eb3b1969ac4e.pdf
    • http://mypricelesspetals.com/uploads/1/3/0/6/130620395/3ddb481.pdf
    • http://bikevaultsystem.com/uploads/1/3/0/7/130740217/livel.pdf
    • http://metersnelectronics.com/uploads/1/3/0/7/130775169/fakole-xinumofex-sanuze.pdf
    • http://provateknike.net/uploads/1/3/0/7/130776249/rerawezofuriw.pdf
    • http://theclassyandjazzyboutique.com/uploads/1/3/0/5/130590177/130590177.html#ukulele+fingerstyle+tabs+pink+panther

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002012.bin
3f614e5e22e05a65ec9c6015c52d6a3cfb189f3b8438dd2f96804cdef78fbd6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2012 7988 bytes

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