Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fdf7703686852fd…

MALICIOUS

PDF

56.3 KB Authoring application: Soda PDF
MD5: 2db5e4bb2d8b4d0e26997d206690ca7f SHA-1: 09b38afcc94f9341d3738fb5ad94b9489c0aaf2d SHA-256: 9fdf7703686852fd24a062e0a25bf798f834e890af85cbd3ebaba672feade87a
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, mentions 'aptitude test questions answers' and various subscription passes, suggesting a lure to engage the user. The primary function appears to be directing users to a network of linked PDF files hosted on various domains, likely for SEO manipulation or to serve as a gateway to further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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://heathallenlawyer.com/uploads/1/3/0/7/130775810/gowewexos.pdf
    • http://calamosventures.com/uploads/1/3/0/7/130775393/bofajudixejaxi.pdf
    • http://cpanel.melsellsparadise.com/uploads/1/3/0/2/130288421/zixalixum-fubesikabisaf.pdf
    • http://www.dionysiusdesigns.com/uploads/1/3/0/4/130483279/8365934.pdf
    • http://www.teachntech.com/uploads/1/3/0/3/130323761/3e827b6233a6.pdf
    • http://bedandbiscuitpethotel.com/uploads/1/3/0/6/130604757/49962b427de56.pdf
    • http://dlitefullgifts.com/uploads/1/3/0/5/130588543/gesozunaleg-zafukosafaf-wufamivule.pdf
    • http://professionalmalevoiceoverservice.com/uploads/1/3/0/6/130639869/1271972.pdf
    • http://www.jaykaypci.com/uploads/1/3/0/4/130483862/diwivub_vupasomutuson.pdf
    • http://schanwriter.com/uploads/1/3/0/6/130639413/b99fb7ea3ecc.pdf
    • http://cosy-home.org/uploads/1/3/0/6/130621829/pofiwalopegiwatig.pdf
    • http://bcattic.com/uploads/1/3/0/5/130588222/gupozokitilarike.pdf
    • http://room212productions.com/uploads/1/3/0/6/130640039/e01d9db000a9a.pdf
    • http://bigboymoverstest.club/uploads/1/3/0/3/130323425/betimetowipilasuzowe.pdf
    • http://smithdesign.com.au/uploads/1/3/0/6/130621477/tuzifeteju.pdf
    • http://tryharvest.com/uploads/1/3/0/4/130476458/dofunokuji_rojoxoruma_vogije_firotewevikog.pdf
    • http://norcalpomskies.com/uploads/1/3/0/5/130588875/2234040.pdf
    • http://anika-ji.com/uploads/1/3/0/7/130740586/dirob.pdf
    • http://dynastyboxingacademy.com/uploads/1/3/0/5/130589338/121fa8152.pdf
    • http://mysaintbarx.com/uploads/1/3/0/5/130539099/7433350.pdf
    • http://www.gbeausartdesign.com/uploads/1/3/0/5/130545666/megubudevosu.pdf
    • http://dns1.rubenslamel.com/uploads/1/3/0/8/130813991/duveto_rewazobofu_mobofitumur_marepubanuga.pdf
    • http://midwestairsoftgroup.net/uploads/1/3/0/3/130313180/6737813.pdf
    • http://lachozaspa.com/uploads/1/3/0/6/130621844/1731662.pdf
    • http://garysstorage.com/uploads/1/3/0/5/130551310/130551310.html#example+aptitude+test+questions+answers

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000046e5.bin
1957428794578a072b8983e864e5701b52391162abfb2d6d14c6295fa8a16687		 pdf-font-stream PDF embedded font (sfnt) at offset 0x46E5 6444 bytes
font_01_sfnt_off00005653.bin
87fd6b1a35a64f5c2d30902eea89631a9c05d6b36ef70c6d0cee4d2ad867525e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5653 2596 bytes
font_02_sfnt_off00005ed9.bin
65cbc19fadb48a591c9c291cef233f815dbd995493465ee21a301c496e39f3c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5ED9 16132 bytes
font_03_sfnt_off000076a6.bin
4a2e2b1f1771e369fe23af2090af15aa08a82ebfd2a48293739dce6c8dc21613		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76A6 8664 bytes

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