Malicious PDF — malware analysis report

Static analysis result for SHA-256 724aadbb4f2be72d…

MALICIOUS

PDF

38.9 KB Authoring application: PDFedit
MD5: 758f8ea013206bc78bfc23c7f87bd072 SHA-1: 0e52bbb37f0e1dd231d74d9ece02d0eca1c6f7aa SHA-256: 724aadbb4f2be72d872b1072b9884adcb71b8da533ba3e3e967f02feeb4ad36e
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links to other PDFs hosted on various domains, indicative of a link farm or redirection scheme. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly suggest malicious intent, likely phishing or malware distribution. The embedded content, though heavily obfuscated, appears to be part of a lure to encourage further interaction and download of malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://top10medicalalerts.com/uploads/1/3/0/8/130874388/9907060.pdf
    • http://www.brightfuturesmaker.com/uploads/1/3/0/2/130271073/d110aa7.pdf
    • http://atlanticcoastveterinaryspecialists.com/uploads/1/3/0/3/130313624/fb3d78.pdf
    • http://myofunctionalcenter.com/uploads/1/3/0/6/130621370/bb91a46.pdf
    • http://imperium-guild.com/uploads/1/3/0/5/130588757/2fbfa321ee945.pdf
    • http://reeseholcomb.com/uploads/1/3/0/6/130621281/wofosatenor-ronijoxopig.pdf
    • http://revelsites.com/uploads/1/3/0/7/130738894/tegorupenaf.pdf
    • http://elevatetutoring.com/uploads/1/3/0/6/130621732/2351417b67ff79.pdf
    • http://mentok.net/uploads/1/3/0/4/130483309/guwimolizupojopogusi.pdf
    • http://methylationassociation.com/uploads/1/3/0/3/130323406/7263176.pdf
    • http://hangoverentertainment.com/uploads/1/3/0/2/130271259/nulatiwogepenitamib.pdf
    • http://myfriendq.com/uploads/1/3/0/8/130813511/desimibaketiwi_lojelebemo_wuwibujutiv_mubitefizexot.pdf
    • http://255ideas.com/uploads/1/3/0/2/130289154/gesifuzama.pdf
    • http://middlerhoadclothing.com/uploads/1/3/0/2/130288380/pubazajagamusapat.pdf
    • http://bestofbaliadelaide.com/uploads/1/3/0/2/130288542/ea282788a8252.pdf
    • http://nickmosca.com/uploads/1/3/0/5/130551089/wesap.pdf
    • http://www.perkinsplumbing.ca/uploads/1/3/0/6/130639548/3817227.pdf
    • http://colddiamnd.com/uploads/1/3/0/2/130288710/130288710.html#tesis+sobre+alcoholismo+en+adolescentes+en+venezuela

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003873.bin
eafdbd4100c0b9a4a5b36c15fc758da122449b8cf96ac24e4497e52bf016ff95		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3873 9624 bytes

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