Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ef353c17efb164e…

MALICIOUS

PDF

32.9 KB Authoring application: PDF Studio First seen: 2026-05-09
MD5: e15c2936d314289a67fa9d591b4f7c13 SHA-1: a15b75c74da3f5b50629df657398f34246ada53c SHA-256: 7ef353c17efb164e3f607117f02643e2c0fef6416172cc6a974e5a9f2c5e4cf2
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF contains a large number of embedded external links to other PDF files hosted on various domains, a technique often used for SEO spam or to distribute malicious content. ClamAV detected this file as Pdf.Phishing.TtraffRobotInstall-7605656-0, and a machine learning classifier also flagged it as malicious with high confidence. The embedded URLs are the primary indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://mabit.getfitwear.ru/uploads/2020/01/28/e326d8da987.pdf In PDF document text
    • https://pavowukilakel.weebly.com/uploads/1/3/0/5/130539016/6776585.pdfIn PDF document text
    • http://xal.sayt-nedorogo.ru/uploads/2020/01/28/dcae4.pdfIn PDF document text
    • https://rugoxewuf.weebly.com/uploads/1/3/0/5/130551041/japupimo.pdfIn PDF document text
    • http://bubefe.sunilchoudhary.site/uploads/2020/01/27/8f01f8330453.pdfIn PDF document text
    • http://jupajaba.la-mebel-modern.ru/uploads/2020/01/28/5650348.pdfIn PDF document text
    • http://tiripexagi.masterpechi.ru/uploads/2020/01/27/wufavero.pdfIn PDF document text
    • http://xipane.alfasl.info/uploads/2020/01/28/1c810336.pdfIn PDF document text
    • http://cummingtreeservice.com/uploads/1/3/0/5/130590154/gexogo-rovuvitetesojan-majuxotalomuxaz.pdfIn PDF document text
    • http://vajovapi.kelta.ru/uploads/2020/01/28/tapagepulexotizefiro.pdfIn PDF document text
    • http://greenwolfverticalfarm.com/uploads/1/3/0/6/130604805/130604805.html#sesli+risale+i+nur+k%C3%BClliyat%C4%B1+indirIn PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001401.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1401 8864 bytes
SHA-256: 419e64c496e0b86f2d49cc432f006d0f0920c9d92c0fa146e677f9c51a8af952

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