Malicious PDF — malware analysis report

Static analysis result for SHA-256 2de285fffa8c30c4…

MALICIOUS

PDF

45.9 KB Authoring application: Soda PDF
MD5: f2fe911148b9a48c43aecfe523af11d8 SHA-1: 5c976eedae721d5e877d90997a1861c44c3cc32b SHA-256: 2de285fffa8c30c4df0b8675dd7a386da2b73808d5de669e0ec4a24829275964
150 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly support a malicious classification. No scripts were extracted from this sample.

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://www.thewheeldeals.com/uploads/1/3/0/6/130621798/guguwasom-tebezuwosirobib-dikugewifoxopum.pdf
    • http://www.theoldshipaground.blog/uploads/1/3/0/6/130621490/bowiruripinaviga.pdf
    • http://musehb.com/uploads/1/3/0/4/130483413/6519f167f.pdf
    • http://satnickod.com/uploads/1/3/0/6/130621425/zokumaxon.pdf
    • http://zoux.com/uploads/1/3/0/7/130740187/1526512.pdf
    • http://mtmsmusic.com/uploads/1/3/0/5/130588672/766992ede29986.pdf
    • http://mountedcharger.com/uploads/1/3/0/5/130551512/1316562.pdf
    • http://createdbyrellyrel.com/uploads/1/3/0/5/130550925/mowenorujiludoxi.pdf
    • http://www.sharmellebeauty.net/uploads/1/3/0/6/130605030/favakikub.pdf
    • http://thomascoke.net/uploads/1/3/0/5/130590420/88153d7a7a32f1b.pdf
    • http://lena-lennrot-fitness.com/uploads/1/3/0/5/130589036/nuduwum-jamovalax.pdf
    • http://mail.centralindianaiscebs.org/uploads/1/3/0/6/130605314/83c69650f56f965.pdf
    • http://bergeneducational.com/uploads/1/3/0/5/130543848/8844765.pdf
    • http://www.calebsbrain.com/uploads/1/3/0/7/130775446/6126684.pdf
    • http://brandmarketingconsultancy.com/uploads/1/3/0/8/130814588/dolukeni.pdf
    • http://chompom.com/uploads/1/3/0/6/130604617/jiviril.pdf
    • http://moretonislandfishingcharters.com/uploads/1/3/0/2/130288559/xuxiwelunixede_waborusitoxe_menojex.pdf
    • http://eumid.com/uploads/1/3/0/4/130435734/6e41866e88.pdf
    • http://bdaglobal.net/uploads/1/3/0/4/130491079/zirarobi.pdf
    • http://boujeebbeauty.com/uploads/1/3/0/4/130488169/69dcc1.pdf
    • http://howdysugah.com/uploads/1/3/0/6/130604056/godupaj.pdf
    • http://www.tti-bih.com/uploads/1/3/0/6/130605230/zopavepexewa_pugifu.pdf
    • http://74-123-76-48.mgwnet.com/uploads/1/3/0/6/130604240/130604240.html#chinese+english+translator+app+apk
    • http://lena-lennrot-fitness.com/uploads/1/3/0/5/130589036/n

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003bc1.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3BC1 16036 bytes
font_01_sfnt_off000052d0.bin
9b253ca3f7e77db8965c10eda738f4919890e78ad6aac68271e61da095103f27		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52D0 7748 bytes

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