Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dca7d1da136422f…

MALICIOUS

PDF

96.7 KB Authoring application: PDFBox
MD5: bec2c4c53668ad40b6698a01a1f09d21 SHA-1: 4caf98c7dec3aeebe616a8e919b584334bbac894 SHA-256: 0dca7d1da136422fa020d158054e4f9b0ab6629ede0c2c28b2534d3018928591
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, indicative of a link farm designed to distribute malicious content or phish users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware delivery. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

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://blacktheta.com/uploads/1/3/0/5/130543941/f904f61e2ca.pdf
    • http://dealersocketinternalevent.com/uploads/1/3/0/7/130775557/kigenajere-wixejakubomita.pdf
    • http://shanleighhair.com/uploads/1/3/0/6/130604826/famosapipu_wagoromip_tonafiwadipog_famipalejug.pdf
    • http://freepesembroiderydesigns.com/uploads/1/3/0/5/130551505/9761729.pdf
    • http://pinneo.net/uploads/1/3/0/6/130620649/vuwuvakanuj.pdf
    • http://myleftlane.com/uploads/1/3/0/6/130639170/8d0f2a3d9.pdf
    • http://nurseries.shop/uploads/1/3/0/8/130874646/a9922476.pdf
    • http://www.halifaxrealestateblog.net/uploads/1/3/0/6/130620278/c1f4f.pdf
    • http://band-ems.org/uploads/1/3/0/2/130273625/5106990.pdf
    • http://www.kirstenlervik.com/uploads/1/3/0/5/130551008/dogegogoliv-vudifumojev-towexata.pdf
    • http://isnlp.net/uploads/1/3/0/6/130604653/pezulujo.pdf
    • http://theartofawe.org/uploads/1/3/0/8/130813586/7c862c1da5d.pdf
    • http://videoroots.com/uploads/1/3/0/2/130289625/8f282ae80ef.pdf
    • http://newchoicemusic.com/uploads/1/3/0/5/130538997/xomerenito-sesojirine-tejikiw-dapiwuge.pdf
    • http://ericsyvertson.com/uploads/1/3/0/5/130550951/1f1ffda66d29f6d.pdf
    • http://robertoaksphotography.com/uploads/1/3/0/5/130543025/ruworonikonuxoderi.pdf
    • http://www.dmcappraisals.com/uploads/1/3/0/6/130621481/64188a5fb925.pdf
    • http://myflexbrace.com/uploads/1/3/0/4/130435561/419fbed4fa.pdf
    • http://dididothat.net/uploads/1/3/0/3/130313415/8379117.pdf
    • http://6wqmbr.bdgct.com/uploads/1/3/0/3/130323421/130323421.html#agile+methodologies+in+software+engineering
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001085.bin
1769b81e62e202444121f7052d5700eb50f76bce74023f03ac4587264c4544f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1085 9472 bytes
font_01_sfnt_off00009ab8.bin
b3affdfdfee497c2d3230853582529cf395d265bfdbb8cde7d84ae9c33602211		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9AB8 16036 bytes

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