Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b0e0a541a38404e…

MALICIOUS

PDF

37.2 KB Authoring application: ImageMagick
MD5: c0e83d432f372ee8d96550b93b0496b8 SHA-1: 5dbbf39bb162b5f79f8a8f73327bb09fdf16f025 SHA-256: 7b0e0a541a38404e8afaec76598009e445e9a43b5987c33ef1fde87de7a772d0
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which are disguised as legitimate content like "Calf vein thrombosis guidelines". The heuristic PDF_SEO_LINK_FARM indicates a link farm designed to lure users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution via the linked PDFs.

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://shnci.org/uploads/1/3/0/6/130621405/228aaf7a4b66.pdf
    • http://seodublin.org/uploads/1/3/0/2/130288762/matetudejuz.pdf
    • http://krishnaandnatansh.com/uploads/1/3/0/6/130620375/sutolebisolamo-risanirogarif.pdf
    • http://momnovel.com/uploads/1/3/0/5/130545021/8582362.pdf
    • http://fineinfo.ru/uploads/2020/01/28/3225634.pdf
    • http://windrosecontabil.com/uploads/1/3/0/5/130542894/0abe02dc.pdf
    • http://misbailes.com/uploads/1/3/0/2/130289236/130289236.html#calf+vein+thrombosis+guidelines

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001072.bin
d4c3555070489d606aecce4ba50e9f7e72c80f89a7f6affbb1dd914ca483d2e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1072 7808 bytes

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