Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f2ae620732b4b8c…

MALICIOUS

PDF

32.3 KB Authoring application: pstoedit
MD5: ffbae743fcced07adc8f50a200d759be SHA-1: 1eebf298b774f0f073cd804f44381d0fa10ceef3 SHA-256: 6f2ae620732b4b8c409ab080168d56ce40e18cd10857300e9e8c7666704d4e7b
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically related to phishing or traffic redirection. The embedded URLs are the primary IOCs, suggesting the document's purpose is to drive traffic to these external resources, potentially for further exploitation or SEO spam.

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://doboxuzowu.frirus.ru/uploads/2020/01/28/bovexonazodu.pdf
    • http://noticiasinternacionales.net/uploads/1/3/0/6/130604881/a41486.pdf
    • http://highway.uno/uploads/1/3/0/6/130621523/volinurifap.pdf
    • http://universalfrequencies.com/uploads/1/3/0/4/130483781/2e3d70dedf.pdf
    • http://gukisopav.uranalitika.ru/uploads/2020/01/29/7938826.pdf
    • http://becomeacontractor.com/uploads/1/3/0/6/130639779/jovewuf_sugimotes_nitalude.pdf
    • http://crapradio.net/uploads/1/3/0/5/130551441/garobupi.pdf
    • http://bartoncourtstudios.co.uk/uploads/1/3/0/5/130588206/vebowaziweluresedo.pdf
    • http://blesscedbeads.com/uploads/1/3/0/6/130604413/jebolu.pdf
    • http://rebeccalaplacaattia.com/uploads/1/3/0/8/130814475/130814475.html#english+conversation+for+tourism+and+hotel+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013ad.bin
855f4d3c059c0002e63e9eb741c8dc90af5c83e42743f43173ab8934d962e1bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13AD 7848 bytes

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