Malicious PDF — malware analysis report

Static analysis result for SHA-256 7627be7cb69acbbd…

MALICIOUS

PDF

39.0 KB Authoring application: Karbon
MD5: 34a0bce1f6dd06960aa92088fe46afbb SHA-1: 08dc22d2237d99e056af5653ed561f7cac5edeb8 SHA-256: 7627be7cb69acbbdfc35ddf2226ef023ddd741bb61252c32d0a8d130d3087951
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious intent. The PDF_SEO_LINK_FARM heuristic specifically identified a large number of external links embedded within the document, pointing to domains like tochonada.info. These links are likely used to redirect users to phishing sites or download further malicious content, aligning with a phishing or drive-by download attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://tochonada.info/uploads/2020/01/29/1323962.pdf
    • http://osbert11.com/uploads/2020/01/29/ab629e929b965ae.pdf
    • http://gepaxujijo.giperfile.fun/uploads/2020/01/28/bazabapake.pdf
    • http://nazarethchurchofgod.com/uploads/1/3/0/2/130287529/9d3c71d3.pdf
    • https://ranoxavuje.weebly.com/uploads/1/3/0/4/130492963/lomenarasetifemenox.pdf
    • http://formulaire.xyz/uploads/2020/01/28/pador.pdf
    • http://klineseminars.com/uploads/1/3/0/6/130604984/juvegekoladej.pdf
    • http://zufemulezu.greatthings.icu/uploads/2020/01/29/570bbaec10.pdf
    • http://cmcindia.org/uploads/2020/01/29/8848498.pdf
    • http://bodyworkbybarb.com/uploads/1/3/0/6/130640095/130640095.html#soalan+bahasa+arab+tahun+1+pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000115c.bin
bab78174e71759a967b289d3726b49e204c60a2f4c537fe57b02b3a9ba43156b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x115C 7500 bytes
font_01_sfnt_off00005115.bin
f31c439e28d0137206b91a151f21343900f846ed9ff070250fbe82eb1cc7da1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5115 16204 bytes

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