Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c4831b93c6aa846…

MALICIOUS

PDF

36.7 KB Authoring application: Inkscape First seen: 2020-09-24
MD5: cf6877c35a9c0642733dedceac607372 SHA-1: c49d771c875238d88c9db0d0383df2c4e97a5bc6 SHA-256: 7c4831b93c6aa84693b07eeea9fa4b9af2cec37906fd1b974e1cbfac723d0fa5
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or content distribution vector, potentially leveraging T1059.007 if JavaScript was used to generate these links dynamically.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://drkerriesmedley.com/uploads/1/3/0/7/130776619/e0250a129f3.pdf In PDF document text
    • http://raulfortes.com/uploads/1/3/0/3/130379718/rinedoki_dumifelomegakod_nutemip.pdfIn PDF document text
    • http://woodridgefarm.net/uploads/1/3/0/7/130740573/00c46726.pdfIn PDF document text
    • http://thewesspotcateringservices.org/uploads/1/3/0/6/130620168/fagunonukuw.pdfIn PDF document text
    • http://ozimek.net/uploads/1/3/0/7/130775275/2946886.pdfIn PDF document text
    • http://snmfineart.com/uploads/1/3/0/5/130551567/juxabixagebanoj.pdfIn PDF document text
    • http://northernvalleysportinggoods.com/uploads/1/3/0/7/130775361/4600134.pdfIn PDF document text
    • http://aprendizajeactivobrumiel.com/uploads/1/3/0/5/130540897/8171961.pdfIn PDF document text
    • http://simplyenhancingbeautylounge.com/uploads/1/3/0/8/130813896/67a1260.pdfIn PDF document text
    • http://mingalarfoods.com/uploads/1/3/0/6/130622023/ecd3ba.pdfIn PDF document text
    • http://casahabana56.com/uploads/1/3/0/7/130775911/e51ef20c2591e7f.pdfIn PDF document text
    • http://danrebsoriano.net/uploads/1/3/0/3/130323624/2320892.pdfIn PDF document text
    • http://youbrewchicago.com/uploads/1/3/0/7/130775772/130775772.html#kdigo+anemia+hemodialysisIn PDF document text

Related samples 2

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_off0000380c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x380C 7788 bytes
SHA-256: bc16a35207c109221047b18b9a50319f47b18164d13c2a4baec172aed66a7032

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