Malicious PDF — malware analysis report

Static analysis result for SHA-256 4738ebf438c15e11…

MALICIOUS

PDF

31.9 KB Authoring application: pstoedit
MD5: 41760316469d2df24e6da94313204729 SHA-1: 14d619cbce0c67003e0272a85afe4f4458a28d9c SHA-256: 4738ebf438c15e110a7c4a24e17604e73a5669522ff8584fdedf425a2608daa8
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs, indicating a link farm designed to redirect users to malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly suggests a phishing or traffic redirection campaign. The document body, though heavily obfuscated, contains references to assignment answers, likely a lure to encourage users to click the malicious links.

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://kidigenal.ledy-boss.su/uploads/2020/01/29/286b9e5e19.pdf
    • http://web-delo.icu/uploads/2020/01/28/b517f5d7b.pdf
    • http://greaterpurposeprod.com/uploads/1/3/0/4/130435701/0501b0.pdf
    • http://gol.udacha-samara.ru/uploads/2020/01/28/monakiwarov.pdf
    • http://vusexesi.help-tao.com/uploads/2020/01/27/5809431.pdf
    • http://silvertonnaz.com/uploads/1/3/0/6/130604687/462500.pdf
    • http://peopleoptimised.com/uploads/1/3/0/6/130621542/9662236.pdf
    • http://cartonioscornerjewls.com/uploads/1/3/0/6/130603798/tefewago.pdf
    • http://helo-zoom.com/uploads/2020/01/27/jumudoramaril-xizabow.pdf
    • http://milopb.weebly.com/uploads/1/3/0/4/130488401/130488401.html#finding+asymptotes+of+rational+functions+assignment+answers

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011aa.bin
28add84024d9617054c14105a83efaa35b7a446692118894ef8d0bff3d77ad8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11AA 7692 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.