Malicious PDF — malware analysis report

Static analysis result for SHA-256 25abdf0fb191fc9f…

MALICIOUS

PDF

45.6 KB Authoring application: Pdftk First seen: 2020-09-24
MD5: 53339154625207aec608fbc50a7f8533 SHA-1: 5c434dbfcc503bb6eb1eef63560f394adf073fe6 SHA-256: 25abdf0fb191fc9f5a6e702ced0d79f9f2e6386d83df3a9b527b7647c0558d60
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a coordinated effort to direct users to potentially malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://artbyvivi.com/uploads/1/3/0/4/130488580/mixoli-dulesusubabuz-roraveno-towozotiru.pdf In PDF document text
    • http://pressurewashingtorrance.com/uploads/1/3/0/6/130620244/nifawus.pdfIn PDF document text
    • http://americanepilepsyinstitute.com/uploads/1/3/0/6/130620612/cf487.pdfIn PDF document text
    • http://wavesmediagroup.com/uploads/1/3/0/6/130620902/zamagulari-nipukedadebe-nuxunuwutiri.pdfIn PDF document text
    • http://kizorolaxa.transcom78.ru/uploads/2020/01/28/tofepujenijopeso.pdfIn PDF document text
    • http://reboundat.com/uploads/1/3/0/6/130639514/130639514.html#food+to+eat+for+blood+type+ab+positiveIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000112f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112F 8640 bytes
SHA-256: e7b366dcc33a866806ff799974b37bfd5215bee9bb74a82d3cbe9e8cff09e620

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