Malicious PDF — malware analysis report

Static analysis result for SHA-256 718e193b2a9a2fea…

MALICIOUS

PDF

46.4 KB Authoring application: Karbon
MD5: 279a7e0214161a95ba99af947ff526b5 SHA-1: eee6097b47ea94cccbc8997550b4113a43274e2b SHA-256: 718e193b2a9a2fea05799911ab8830e49069f4a322f5625fdd501361842790ee
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to distribute further malicious content. ClamAV identified this as Pdf.Phishing.TtraffRobotInstall, indicating a phishing or traffic redirection scheme. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://alicewild.shop/uploads/1/3/0/2/130291390/nufarasuxeveraf.pdf
    • http://npbusinessconsultants.com/uploads/1/3/0/7/130775447/lujobezekapuxux.pdf
    • http://lsboudoirlondon.co.uk/uploads/1/3/0/6/130620230/fagusuvefodowom_tajazomafoke_xubilebepa_wumawipemit.pdf
    • http://electricliving.org/uploads/1/3/0/6/130605019/f0f25037c.pdf
    • http://dokkanaccountseller.com/uploads/1/3/0/5/130539494/5210518.pdf
    • http://monsieurcoulibaly.com/uploads/1/3/0/6/130620604/bovagikunevemesajim.pdf
    • http://feve.metiztorg.net/uploads/2020/01/29/wiveza_xaxaxafosamivo_lujubiguwexawek_wisuxadudavar.pdf
    • http://bellevueboysswive.com/uploads/1/3/0/5/130589244/kizar.pdf
    • http://royalglossbrat.com/uploads/1/3/0/4/130435891/130435891.html#alinea+chef+grant+achatz

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012b3.bin
d0e6f8b9b49d0bbace83f927177c7f7c1d93a4b6267ba5af484d6710469a3a4a
pdf-font-stream PDF embedded font (sfnt) at offset 0x12B3 9692 bytes