Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3c407203258413a…

MALICIOUS

PDF

35.1 KB Authoring application: OpenOffice Draw
MD5: bc12270436ae3ed207d819e12bfbabe5 SHA-1: f6cdf93ecea5d70582ab565674e14ef07be3e14e SHA-256: f3c407203258413aecdb2b1cdebe6709220506ede9d997f75cddbae8f885656e
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection and ML classifier strongly indicate maliciousness, specifically identified as 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. The document body, though partially corrupted, references geography and economy topics, potentially as a lure. The primary attack pattern involves directing users to a network of linked PDF files hosted on various domains.

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://mydobel.store/uploads/1/3/0/4/130483864/marijobakelopus.pdf
    • http://pinkgellacnailpolish.com/uploads/1/3/0/2/130272898/fovixako.pdf
    • http://hostmaster.pinkfloydprints.com/uploads/1/3/0/3/130313198/6989442.pdf
    • http://www.oerestadsfamilien.dk/uploads/1/3/0/6/130620251/xapife.pdf
    • http://splinteredmindprints.com/uploads/1/3/0/7/130775610/1003229.pdf
    • http://metuchendentistry.com/uploads/1/3/0/6/130620280/469d1297a.pdf
    • http://ume.bh/uploads/1/3/0/6/130620705/divera-bagibo-ziwokolimek-duzowasopo.pdf
    • http://goldendealusa.com/uploads/1/3/0/8/130814083/lolegupupixoje.pdf
    • http://cpanel.848royalroadsaircadets.com/uploads/1/3/0/8/130874012/5487305.pdf
    • http://mindbodymend.com.au/uploads/1/3/0/7/130738943/wulolaruvejo.pdf
    • http://bersk.life/uploads/1/3/0/5/130551160/nukelep_talavigi.pdf
    • http://yaamarbellydance.com/uploads/1/3/0/7/130739346/9401179.pdf
    • http://mshipco.com/uploads/1/3/0/2/130288962/4289935.pdf
    • http://thefirsttimes.com/uploads/1/3/0/7/130739234/tagegesamasipav_xalotemisuzafeg.pdf
    • http://host12.pleasingfood.com/uploads/1/3/0/3/130379295/130379295.html#geography+and+economy+of+india+pdf+in+telugu

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000022d4.bin
87fd6b1a35a64f5c2d30902eea89631a9c05d6b36ef70c6d0cee4d2ad867525e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x22D4 2596 bytes
font_01_sfnt_off00002e63.bin
86fc8ba74ef5635f378167e3bed814faf15793b14ad56e161007a919874aa266		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E63 8020 bytes

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