Malicious PDF — malware analysis report

Static analysis result for SHA-256 274dd3bbbf099199…

MALICIOUS

PDF

38.8 KB Authoring application: SWFTools
MD5: 33617c7ccd723986c142a4dad499e728 SHA-1: 656a216aa9a5996efe1ec90a11f7cfd5c31c6a7b SHA-256: 274dd3bbbf099199101e4c76ccbf8d3c604b3b6d50c0db6d91a04821da147ed2
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

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. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent. The primary attack pattern involves redirecting users to a network of external PDF documents.

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://sundmansmide.se/uploads/1/3/0/6/130621114/7329683.pdf
    • http://nwm6.club/uploads/1/3/0/8/130814104/d218fdc718ae.pdf
    • http://jbstyles.shop/uploads/1/3/0/8/130874129/livumarekefanije.pdf
    • http://admin.kitchenvisions.co.uk/uploads/1/3/0/2/130274146/samomozo_zegusilewuzala.pdf
    • http://acceleratehomeservices.com/uploads/1/3/0/4/130488096/bf14241de6.pdf
    • http://streamkingztv.info/uploads/1/3/0/6/130621603/fajagir-dagujozofezakod-bomivifelevejiz.pdf
    • http://cscle.com/uploads/1/3/0/5/130545382/gojemopovimiv.pdf
    • http://scybl.ca/uploads/1/3/0/2/130289632/3326810.pdf
    • http://mymisssparkle.com/uploads/1/3/0/2/130287984/pavudufe-vipev.pdf
    • http://mid-citymaintenance.com/uploads/1/3/0/3/130379239/ca250.pdf
    • http://angelasresidentialcare.com/uploads/1/3/0/7/130739311/rakoroso.pdf
    • http://unitethevillage.org/uploads/1/3/0/7/130776648/6b1c597f0ce10.pdf
    • http://cup054.com/uploads/1/3/0/6/130620268/652b1c13.pdf
    • http://mgrouptyres.com.au/uploads/1/3/0/4/130483765/7793149.pdf
    • http://sylviafodor.com/uploads/1/3/0/4/130476327/1480085.pdf
    • http://bigsmasher.org/uploads/1/3/0/5/130543656/2311784.pdf
    • http://thenineslive.co.uk/uploads/1/3/0/7/130776775/wabevobasudofe-beletexonomis-bemamezexis.pdf
    • http://tula.tulatech.com/uploads/1/3/0/5/130543840/c87ce1a0cf3651.pdf
    • http://mccoycleaningservice.com/uploads/1/3/0/2/130287505/ff06e0857af22.pdf
    • http://shiftforwardcoaching.com/uploads/1/3/0/7/130776421/dc18a62.pdf
    • http://miss-nelson.com/uploads/1/3/0/5/130551237/vukebisidegu_xofiwititaxif_baxogir_jazemuwafizag.pdf
    • http://richardfordelmarsupervisor.com/uploads/1/3/0/6/130621418/62c5666.pdf
    • http://vakinc.com/uploads/1/3/0/5/130588572/f4c00feea0775.pdf
    • http://choptallybarber.shop/uploads/1/3/0/6/130620943/zodokovuxuzufo_mejexexom_mopamosexomezub.pdf
    • http://visionlinkshotelapartments3.devsite-1.com/uploads/1/3/0/2/130287229/130287229.html#ecological+theory+in+environmental+psychology

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000333e.bin
0d4ea7fc9b67f3c92a51dae4fc992360fd9daa13a2efe50de5b13af326ebb4c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x333E 8272 bytes

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