Malicious PDF — malware analysis report

Static analysis result for SHA-256 2855badb0a9a1931…

MALICIOUS

PDF

36.2 KB Authoring application: Adobe PDF Library 9.0
MD5: c41cbe7c94a8be80db8486f1ab7689a6 SHA-1: d35d0769000434d830a7c2f938119d4bded4c400 SHA-256: 2855badb0a9a193130cc60afb46305e5bc74534bdf0eb99d7a01796d48e870e8
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files hosted on various domains. This behavior is indicative of a link farm or a phishing campaign designed to direct users to potentially malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing and traffic redirection nature of this file. No scripts were extracted from this sample.

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://www.tramitaronline.com/uploads/1/3/0/6/130639760/db2a64981.pdf
    • http://alanakolb.com/uploads/1/3/0/5/130543996/bijobixebuwo.pdf
    • http://melendezlandscapingllc.trustabiz.com/uploads/1/3/0/6/130620390/bilenefofi_sumozodev.pdf
    • http://restorepgw.org/uploads/1/3/0/2/130287281/sumewuxejekev_wovenogapez_lebepusomu_nevizinedeve.pdf
    • http://sportskidsplay.com/uploads/1/3/0/5/130538836/xivegefekojazax.pdf
    • http://socialjusticewitch.com/uploads/1/3/0/4/130475955/wemavitosojejenen.pdf
    • http://amstelkorendag.nl/uploads/1/3/0/7/130738881/3361ac351ab4a.pdf
    • http://keyhive.com/uploads/1/3/0/7/130739696/5211578.pdf
    • http://feltygolf.com/uploads/1/3/0/6/130621418/kutolonugad.pdf
    • http://bestflooringco.com/uploads/1/3/0/7/130775088/3176197.pdf
    • http://questofthewarriormaiden.com/uploads/1/3/0/6/130604177/bobuzagomer-pikuzikog-sopeku.pdf
    • http://bubblegumfantasies.com/uploads/1/3/0/2/130288401/bavuzidakiditipa.pdf
    • http://jdmeat.ca/uploads/1/3/0/5/130550825/7f9ba3a.pdf
    • http://biblebasedleader.com/uploads/1/3/0/6/130604340/4365427.pdf
    • http://birdsbymail.com/uploads/1/3/0/3/130313091/05b495c1de683e.pdf
    • http://www.cindylorenz.com/uploads/1/3/0/5/130543685/rotodufatutufa.pdf
    • http://luissalom.net/uploads/1/3/0/6/130604905/3527569.pdf
    • http://webmail.htlc-lagrange.org/uploads/1/3/0/6/130603969/8713642.pdf
    • http://girlycrew.com/uploads/1/3/0/2/130270867/munifitu.pdf
    • http://market.fastinfofinder.com/uploads/1/3/0/6/130622091/vepox.pdf
    • http://wcd-ggtd2i7.mgh-r.ch/uploads/1/3/0/7/130738993/130738993.html#solving+systems+using+elimination+guided+notes

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f60.bin
35ca89bcacc1bc51ee9223e2e468f58b99762c1192a2a745bf913f93c0c09a54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F60 7372 bytes

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