Malicious PDF — malware analysis report

Static analysis result for SHA-256 021c4488782e718b…

MALICIOUS

PDF

36.9 KB Authoring application: Inkscape
MD5: ead647926516785a2ec621e4dc39e679 SHA-1: 3a9ddb5014c014a25fe28376c0679fc287eacc93 SHA-256: 021c4488782e718baeeb119fbc17184663ce986652b2e326d6013005d3d1d122
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a mass external link farm with 31 links, a technique often used for SEO manipulation or to distribute further malicious content. ClamAV detected this file as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', indicating a phishing or traffic redirection purpose. The ML classifier also strongly flagged this PDF as malicious.

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://opcloud.net/uploads/1/3/0/6/130621201/6725bcc33cc2.pdf
    • http://orlandoaccidentlawyer.net/uploads/1/3/0/5/130542912/f346284d783.pdf
    • http://staceylytle.com/uploads/1/3/0/2/130272638/dirapo.pdf
    • http://painfulleg.com/uploads/1/3/0/4/130476798/goxedodoz.pdf
    • http://oregonnw.net/uploads/1/3/0/2/130272286/fizisifaviselape.pdf
    • http://noirnooga.net/uploads/1/3/0/5/130539597/c5675f.pdf
    • http://testuda.com/uploads/1/3/0/8/130813652/funuborovip.pdf
    • http://north-carolina-charlotte-real-estate.com/uploads/1/3/0/6/130639733/tabewav.pdf
    • http://solvingchemistry.com/uploads/1/3/0/6/130603853/puvafo.pdf
    • http://jonathanecollins.com/uploads/1/3/0/3/130323672/c98ac2613308.pdf
    • http://tahavolesabz.org/uploads/1/3/0/6/130604770/0046d.pdf
    • http://naaboard.com/uploads/1/3/0/5/130588931/53678658d.pdf
    • http://gagesblog.com/uploads/1/3/0/5/130588244/gurigojabowo_kapadiwumodus.pdf
    • http://healinghandsmentoring.com/uploads/1/3/0/6/130603761/2157628.pdf
    • http://minigypsyhorse.com/uploads/1/3/0/2/130270937/koluzefil-lodote-nodumisuxenugu-mudamagudu.pdf
    • http://jwmayfield.net/uploads/1/3/0/3/130313746/tuzirawak.pdf
    • http://julieonofrio.com/uploads/1/3/0/2/130270792/risawudereri.pdf
    • http://naplesmarketresearch.com/uploads/1/3/0/6/130621076/7316226.pdf
    • http://advbiocomp.net/uploads/1/3/0/6/130621196/dugizukisilobapow.pdf
    • http://cxleadership.com/uploads/1/3/0/6/130603913/terutiwuzore_zomowaloj.pdf
    • http://milinclinic.com/uploads/1/3/0/4/130489248/toxawitifekujidakexi.pdf
    • http://michelewestlaken.com/uploads/1/3/0/7/130740116/1922223.pdf
    • http://dysprosiumcompanies.com/uploads/1/3/0/3/130379222/kolozeluvu.pdf
    • http://billelenbark.net/uploads/1/3/0/5/130551949/jagexizax-pexik-fevezadewadi.pdf
    • http://thatchwears.com/uploads/1/3/0/4/130435685/130435685.html#cervical+epidural+vs+nerve+block

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f3c.bin
e1ad3ced6242ad6a33c81a5cb9046fed16c341e4567dbc89fbb380a31871ef68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F3C 7096 bytes

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