Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ce71ab4958788fc…

MALICIOUS

PDF

32.5 KB Authoring application: Poppler-utils
MD5: b3f3ea1129c904df41bad4795b97c1dc SHA-1: 6c98d87a313cf71990e1f7031ff96c0f120a7ead SHA-256: 5ce71ab4958788fc26d8fbc31056f400d6a2023dd92ba86a1ecc3afcb939e2cf
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a large number of embedded external links, a technique commonly used for SEO manipulation or to redirect users to malicious sites. ClamAV and ML classifiers also flagged this file as malicious, specifically identifying it as a phishing-related threat. The embedded URLs are the primary indicators of compromise.

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://naturalacumen.com/uploads/1/3/0/5/130589278/jovefakoda.pdf
    • http://queenalexandra78ave.com/uploads/1/3/0/4/130435898/janewu_pisuri_wopupigevotur.pdf
    • http://amlanordstages.com/uploads/1/3/0/2/130289493/284079ced880189.pdf
    • http://leacentre.com/uploads/1/3/0/7/130776264/4becf66e4f19e7d.pdf
    • http://ivjournal.org/uploads/1/3/0/6/130604069/71ecca08a4678.pdf
    • http://dronkadiscountstore.com/uploads/1/3/0/4/130483122/3417641.pdf
    • http://sauerlandhypotheek.nl/uploads/1/3/0/5/130541950/130541950.html#3m+auto+wrap+colors

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010c7.bin
c3e36b59e9ebe0cfb4ff59f0b0c8754d18993ea4cede95b497cee52ad286a948		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C7 8516 bytes

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