Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ef80ebb4de7e677…

MALICIOUS

PDF

32.0 KB Authoring application: SWFTools First seen: 2020-09-24
MD5: d130986366c7f2a0327fb68cb8bd1d5f SHA-1: a3f9b084630fa034e9f0e49bb278b8cd1b3889d6 SHA-256: 7ef80ebb4de7e677e80b92d6d8231c0e98c550d790ec0431ae8e75be0124d7dd
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO spam or to distribute malware. The ClamAV detection and ML classifier strongly indicate malicious intent. While no scripts were explicitly extracted, the embedded URLs suggest an attempt to redirect the user to malicious content, potentially a phishing page or a downloader.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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 https://tiwivunip.weebly.com/uploads/1/3/0/3/130313366/dd44e594285.pdf In PDF document text
    • http://aplangportfoliohenkel.com/uploads/1/3/0/2/130270946/derit-pokavipoju-givuzof.pdfIn PDF document text
    • http://avtotool.ru/uploads/2020/01/27/600084.pdfIn PDF document text
    • http://ludog.startyachting.ru/uploads/2020/01/28/nexireju.pdfIn PDF document text
    • https://donurumudofiwe.weebly.com/uploads/1/3/0/4/130491166/2621715.pdfIn PDF document text
    • https://tudojunono.weebly.com/uploads/1/3/0/4/130491008/sozopiro.pdfIn PDF document text
    • http://vaxifax.zayavka-na-kredit.com/uploads/2020/01/28/6c2d9f6d43b7.pdfIn PDF document text
    • http://kabi.sportvideoobzor.ru/uploads/2020/01/28/depilujodaris.pdfIn PDF document text
    • https://godojere.weebly.com/uploads/1/3/0/4/130483067/rizixomu_gowafixo_figokixuxi.pdfIn PDF document text
    • http://fovujosex.aspirantesmedicina.com/uploads/2020/01/29/7838355.pdfIn PDF document text
    • https://fuwuxowa.weebly.com/uploads/1/3/0/4/130488946/da1a9fa36e.pdfIn PDF document text
    • http://waf.kliningovaya-kompaniya.pro/uploads/2020/01/27/mubumukogisijidogibu.pdfIn PDF document text
    • http://oakclass.com/uploads/1/3/0/5/130588987/130588987.html#2002+yamaha+big+bear+400+service+manIn 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_off00001328.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1328 8496 bytes
SHA-256: cbab4a5f6386b8279af5a95ecc84177c478a6e7943f004eb9aef65b3f472f04a

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