Malicious PDF — malware analysis report

Static analysis result for SHA-256 02113ee13507c0d2…

MALICIOUS

PDF

41.7 KB Authoring application: ImageMagick
MD5: d387799b6bd6a36f464dbbb23c07451b SHA-1: 51ce26f4f3fe9083cff29d3aaa65cd26d2e55799 SHA-256: 02113ee13507c0d27d7e783fa9e8b838f76807a910466a8701e8b3c3c2b09e09
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 spam or to distribute further malicious content. ClamAV identified this as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', and an ML classifier also flagged it as malicious. The document body is heavily obfuscated and appears to contain junk data, suggesting the primary malicious function is the link farm.

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://mydrivingschoolga.com/uploads/1/3/0/6/130640020/worobivanugusi.pdf
    • http://notquitenans.com/uploads/1/3/0/7/130775665/4346920.pdf
    • http://dashielllaw.com/uploads/1/3/0/6/130620565/nutupasukunike_mebotobakojise.pdf
    • http://michifuzz.com/uploads/1/3/0/3/130324050/b690b9164b4a95d.pdf
    • http://iqfee.com/uploads/1/3/0/6/130639962/8609067.pdf
    • http://homebrewbeerguide.com/uploads/1/3/0/8/130814483/wofil.pdf
    • http://ziteksolutions.com/uploads/1/3/0/5/130590507/dasivofaderetebip.pdf
    • http://moderndaymira.com/uploads/1/3/0/7/130740368/wixigegevabo.pdf
    • http://www.gretagilbert.com/uploads/1/3/0/2/130289313/foluwebunawiwuv.pdf
    • http://ridgelineohio.com/uploads/1/3/0/4/130488451/gapegopamexe_gatepofunokazi_zuxituwenuk_dorisonevikor.pdf
    • http://bethevibration.com/uploads/1/3/0/5/130589285/6815456.pdf
    • http://beeldschermverhuur.eu/uploads/1/3/0/7/130739598/9830146.pdf
    • http://adidasdeadstockmarketplace.com/uploads/1/3/0/4/130488741/2642241.pdf
    • http://www.woollygear.co.uk/uploads/1/3/0/7/130738896/zapuvitik.pdf
    • http://catholicnewmancenterlssu.org/uploads/1/3/0/5/130550925/kifejalaxurodoze.pdf
    • http://thymomahope.com/uploads/1/3/0/5/130551401/5397904.pdf
    • http://www.somervilleairporttaxicab.com/uploads/1/3/0/9/130968915/ronofevup-falugo-vadeba.pdf
    • http://tomwenfashiondesign.com/uploads/1/3/0/6/130621859/dc7982.pdf
    • http://ororossodelmonferrato.com/uploads/1/3/0/7/130738769/9522985.pdf
    • http://mindlogger.info/uploads/1/3/0/6/130621587/d137399.pdf
    • http://mindforyou.org/uploads/1/3/0/8/130814926/130814926.html#cisco+asa+access-list

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000043c2.bin
27be3daae29648ae8238b7a8db2909f9d2b8b397446363e5ed9637f587db96e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x43C2 7904 bytes

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