Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a00d3ed3baef294…

MALICIOUS

PDF

32.2 KB Authoring application: Nitro PDF
MD5: ff71acd0d60c83359139c08e7d70b44a SHA-1: 47329e2389cec0ba8f7cb5f77cd9f82cfa8500e4 SHA-256: 5a00d3ed3baef294096af3580b70c495e3180b83d049aeedf144b25b032ff49a
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 documents, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection also flags this as Pdf.Phishing.TtraffRobotInstall. This suggests the document is part of a link farm or phishing campaign designed to drive traffic to numerous malicious or spam-related sites. No scripts were extracted from this sample.

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://primebusinesschecks.com/uploads/1/3/0/4/130435697/4311973.pdf
    • http://www.marielcosmeticsllc.com/uploads/1/3/0/7/130739723/2706128.pdf
    • http://liquidreiki.net/uploads/1/3/0/6/130639566/poladaso-tovogowepezo.pdf
    • http://v0wm9.salon225.com/uploads/1/3/0/5/130551349/kaniwifumi.pdf
    • http://mxhype.com/uploads/1/3/0/5/130539875/zuvixevuputon-dukudupomaxejik-janixobebokomom.pdf
    • http://abilenehormonalwellnesscenter.com/uploads/1/3/0/8/130814285/05d90.pdf
    • http://notanuffibizans.com/uploads/1/3/0/7/130776032/muvesusolop_viwuvinove.pdf
    • http://jaefinancialgroup.net/uploads/1/3/0/4/130490461/5778132.pdf
    • http://yumianzhanginc.com/uploads/1/3/0/5/130550812/fozoxipexexelibido.pdf
    • http://martha-j-klein-artist.com/uploads/1/3/0/8/130813898/87a2230a5011f.pdf
    • http://filemakerwebandios.com/uploads/1/3/0/2/130288549/lifejinevovanuve.pdf
    • http://gospeldrivenwomen.com/uploads/1/3/0/7/130775712/nerupade-vigepex-nifedabatemebo.pdf
    • http://themovingconcierge.com.au/uploads/1/3/0/5/130588251/2573275.pdf
    • http://dostal.at/uploads/1/3/0/5/130538937/kijotoziz.pdf
    • http://organizedgaming.net/uploads/1/3/0/4/130489351/b55a014f6a3.pdf
    • http://www.9210robindrive.com/uploads/1/3/0/4/130435712/130435712.html#ielts+listening+10+test+1+answers
    • http://dostal.at/uploads/1/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000022e6.bin
b6d2617cf3334bce2b324522a3562ae53e952e4383ca5b8e6a44c575e69f07d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x22E6 7696 bytes

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