Malicious PDF — malware analysis report

Static analysis result for SHA-256 5371d8d6e384fdf5…

MALICIOUS

PDF

141.1 KB Authoring application: Inkscape
MD5: 55b6eb05ed98f5963afb2a13351f806b SHA-1: 0e311c3eb673b77549d788da33a9c297b2c72a0a SHA-256: 5371d8d6e384fdf594b270c07997eec7d499a61dee9fb1b8fd2dcf0dcd2beeb8
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF files hosted on various domains. This behavior is indicative of a link farm designed to manipulate search engine results or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. No scripts were extracted from this sample, and the document body was heavily obfuscated.

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://norfolkeyephysiciansandsurgeons.com/uploads/1/3/0/5/130540072/dituj-veruderokil-dezawak.pdf
    • http://choateequine.com/uploads/1/3/0/3/130379681/8647939.pdf
    • http://themagicalcryptofriendsshow.com/uploads/1/3/0/4/130436494/vukirododam.pdf
    • http://edutainmint.com/uploads/1/3/0/3/130312972/gowemedaw.pdf
    • http://phprecipes.com/uploads/1/3/0/7/130738796/nugaxerozafe.pdf
    • http://www.janeryl.co.uk/uploads/1/3/0/6/130639231/7e938b672b4d6f3.pdf
    • http://waoh.store/uploads/1/3/0/5/130588221/vudurabazewara.pdf
    • http://herblocations.com/uploads/1/3/0/7/130738854/3826741.pdf
    • http://mta-sts.mail.brownfarmsstrawberries.com/uploads/1/3/0/9/130969434/ruvutij.pdf
    • http://orthogistic.com/uploads/1/3/0/5/130589239/lapub.pdf
    • http://sellmyhomepeoria.com/uploads/1/3/0/8/130874237/e734e.pdf
    • http://shantarassoapandcandlecompany.com/uploads/1/3/0/5/130550960/vowinibugivawo.pdf
    • http://ridgelineohio.com/uploads/1/3/0/2/130272918/4361ea77072bb9.pdf
    • http://www.melaniemaie.com/uploads/1/3/0/5/130590287/9f6c26e8d7e.pdf
    • http://kidztokidz.org/uploads/1/3/0/5/130547659/wirujowopip-buvikelipatiber-zokonet-xubejut.pdf
    • http://summer53.pleasingfood.com/uploads/1/3/0/6/130605230/130605230.html#business+vocabulary+in+use+intermediate+book+with+answers+and+enhanced+ebook

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fe2.bin
5df2aa7d609e62b72721dcf99e6dfa08afed0714bdbd1610ea2bce2e45eb9697		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FE2 17720 bytes
font_01_sfnt_off00007d7a.bin
99a85c51d17d7dab34c6899fda241835384a17573cd6b70a07444061762b4e9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D7A 10172 bytes
font_02_sfnt_off0001f2d0.bin
c7b4e2cb7418cfa0d73cd24a4bfca3a3dbba7450c20b4f23a6bd6566b73aeeee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1F2D0 3064 bytes

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