Malicious PDF — malware analysis report

Static analysis result for SHA-256 a575df2b7e7120b7…

MALICIOUS

PDF

51.4 KB Authoring application: QPDF
MD5: 78de9e367c4bf6de370c57c2392e99e4 SHA-1: 50dc9c1a93e54ebe1f5bcdd6b1343c9049f3f9a7 SHA-256: a575df2b7e7120b798d637b631938ff52864abc36e9f7849d3d5539bc2ef7d46
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a link farm with multiple external PDF URLs, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection further confirms its malicious nature, classifying it as Pdf.Phishing.TtraffRobotInstall. The embedded URLs suggest a phishing or redirection campaign, aiming to lead users to malicious content.

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://lynnesgarden.com/uploads/1/3/0/2/130288326/b7145b42c96f.pdf
    • http://btimsp.com/uploads/1/3/0/5/130551615/b78862f57da.pdf
    • http://k9ssolutions.com/uploads/1/3/0/5/130539449/e903600.pdf
    • http://artofitness.com/uploads/1/3/0/5/130551859/rekofobupo_felateda_lujuvebeme_farapudaf.pdf
    • http://219garage.com/uploads/1/3/0/5/130545565/tizukojesafov.pdf
    • http://andinclusion.com/uploads/1/3/0/8/130813913/gefapomaru_jivizitofike_tupugasat_fowepubidozoko.pdf
    • http://carpetcleancary.com/uploads/1/3/0/4/130483924/130483924.html#chronological+order+of+events+in+modern+indian+history

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013e9.bin
6c60d22e316639d959547a6f95bc1ad9a3a2a606b69484109cef216af02cb117		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13E9 9084 bytes

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