Malicious PDF — malware analysis report

Static analysis result for SHA-256 62b0f7c259305b89…

MALICIOUS

PDF

47.3 KB Authoring application: PDFBox
MD5: 36dbcb7a2898d53ad1ac6f90cacf9b2d SHA-1: e98969100eb5cf68de813b7ec576ce8ef2f7fdb2 SHA-256: 62b0f7c259305b899341aa8bb04fc1f090567c9ade239f363cbf06ac07f08c07
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded URLs pointing to other PDF files, indicative of a link farm or a distribution mechanism for further malicious content. ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and URL distribution align with techniques used to redirect users to phishing sites or download additional malware.

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://seanrussellgamedev.com/uploads/1/3/0/6/130639800/3512285.pdf
    • http://survive2life.com/uploads/1/3/0/7/130775130/doporuf.pdf
    • http://fixitfitness.com/uploads/1/3/0/8/130874681/9424571.pdf
    • http://izzybit.com/uploads/1/3/0/5/130544447/bc80547e.pdf
    • http://nohokaiproductions.com/uploads/1/3/0/7/130776702/losalomare_mujumovanu_pipujikizafe_vodarewaremer.pdf
    • http://northtexasdoodles.com/uploads/1/3/0/2/130271165/8314298.pdf
    • http://cocktailsexpress.com/uploads/1/3/0/6/130621411/waxexuvubufupej.pdf
    • http://macksnack.com/uploads/1/3/0/6/130621687/8820618.pdf
    • http://salonsirena.com/uploads/1/3/0/6/130639691/f59c081ca7.pdf
    • http://www.cj6ek.com/uploads/1/3/0/5/130551339/gisedoduzigelisid.pdf
    • http://knowsbest.net/uploads/1/3/0/7/130775904/foxarifad.pdf
    • http://beach.rileyelizabethphotography.com/uploads/1/3/0/8/130873927/130873927.html#zener+voltage+regulator+circuit

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000623c.bin
18d28ef070119b83ce1c923b616c647dc9eb9c329b6500498b06f3f0f2b36d70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x623C 8248 bytes

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