Malicious PDF — malware analysis report

Static analysis result for SHA-256 5391dbe58a9151e2…

MALICIOUS

PDF

39.3 KB Authoring application: Nitro PDF
MD5: 720956377435320bcebf46e7c9551d71 SHA-1: 585951931e05d803c74b1197c14c81b9d3fc0df2 SHA-256: 5391dbe58a9151e2f343b96154e3af894505d549f1162f410387de4c98dac1b8
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 external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links likely lead to phishing sites or further malware. The ClamAV detection of Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports the malicious intent. 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://norbertfodor.com/uploads/1/3/0/5/130540104/jolusovig_potamezal.pdf
    • http://thecottonlickers.com/uploads/1/3/0/6/130639368/64436c92.pdf
    • http://hardhatinvestments.com/uploads/1/3/0/3/130313271/xarovu.pdf
    • http://minimatisse.shop/uploads/1/3/0/5/130551941/jubudonelalalulu.pdf
    • http://bellastar.net/uploads/1/3/0/6/130622038/2d66e780e.pdf
    • http://ursulaohara.com/uploads/1/3/0/7/130775200/pufawidebamuf-tatog.pdf
    • http://dtailspetboutiquespa.com/uploads/1/3/0/7/130775174/9062778.pdf
    • http://riveflowyoga.com/uploads/1/3/0/4/130436306/a7ebcbd22b6f4.pdf
    • http://bwuethrich.com/uploads/1/3/0/2/130272094/017c1b438db53.pdf
    • http://www.mytransparentlife.com/uploads/1/3/0/8/130813696/zixol_bupamemirapali_rapabas.pdf
    • http://musictheatercareers.com/uploads/1/3/0/8/130813609/sarekiwe.pdf
    • http://alyssagoldenvocalist.com/uploads/1/3/0/4/130488445/7a571b0c.pdf
    • http://shakeyoursoulsong.com/uploads/1/3/0/6/130604983/febotofijelusak.pdf
    • http://newburghmodelrrclub.org/uploads/1/3/0/3/130313555/c5daa2eebe3b341.pdf
    • http://charlottejackman.com/uploads/1/3/0/2/130291478/zewukumujan.pdf
    • http://mk3basketballclinics.com/uploads/1/3/0/7/130739201/7f148584fc7f.pdf
    • http://garagestorageadvice.com/uploads/1/3/0/4/130477176/zanowimeviremita.pdf
    • http://visvertier.com/uploads/1/3/0/6/130639411/loritibo.pdf
    • http://trevornewtonartist.com/uploads/1/3/0/9/130970022/d779432bf62ece.pdf
    • http://stayusahotel-wb.devsite-1.com/uploads/1/3/0/4/130483320/130483320.html#ethnographic+qualitative+research+conference

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003832.bin
ed6c6df37f72ffbcf31693486d8ffd6d5efac4682e187fd6309cf2bab212e0a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3832 8884 bytes

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