Malicious PDF — malware analysis report

Static analysis result for SHA-256 26cce2d6cd44b73d…

MALICIOUS

PDF

36.5 KB Authoring application: Smallpdf Desktop
MD5: bdfd7e7427f8c40b62c72028219caa00 SHA-1: aa0c56e96265e99c9d453b9584996931e5b1b9d4 SHA-256: 26cce2d6cd44b73da2c59bebe9b0c01666240bb2d17f81448d2a2389cfe12f50
150 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of external links, many of which point to PDF files hosted on suspicious domains, indicating a link farm for phishing or malware distribution. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly suggest malicious intent. The document body mentions 'Manco thunderbird price' and includes URLs that appear to be part of a lure to download further malicious content.

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://minited.org/uploads/1/3/0/5/130539090/bekaduxogodafifeve.pdf
    • https://zesuworevij.weebly.com/uploads/1/3/0/5/130588515/gusobetu-mobekovijifive.pdf
    • http://nortonbio.com/uploads/1/3/0/4/130435637/8709433.pdf
    • http://cavecanemcolectioni.com/uploads/1/3/0/6/130604168/rugunipex.pdf
    • http://morlok.com/uploads/1/3/0/6/130620486/7656570.pdf
    • http://mylawyerbevin.com/uploads/1/3/0/5/130550684/tesexofigusijewa.pdf
    • http://rayonlifestyle.com/uploads/1/3/0/5/130541133/kuxitudesexeren.pdf
    • http://edgelandscapeandmaintenance.com/uploads/1/3/0/3/130379246/130379246.html#manco+thunderbird+price

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001126.bin
d3ced7ab73bbed5ccf219155cfa0ba57c1e5d54249a7cc6a92db6dd02a204895		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1126 8396 bytes

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