Malicious PDF — malware analysis report

Static analysis result for SHA-256 7715008ed0fa2f28…

MALICIOUS

PDF

35.5 KB Authoring application: OpenOffice Draw First seen: 2020-09-24
MD5: 752d4e860992bc84b42b577169207d7f SHA-1: f00ee59e1a055eae9fdca12a81bdffa5eff9ab2f SHA-256: 7715008ed0fa2f2878a52cb70bec5428aac22c4308f20bcac3236430a3a5c4ae
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to distribute further malicious content. ClamAV and ML classifiers also flagged this file as malicious, specifically identifying it as a phishing or redirector. While no scripts were directly extracted, the PDF structure and embedded URLs suggest a malicious intent to redirect users to potentially harmful websites.

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://bajasharkdiving.com/uploads/1/3/0/5/130546804/2466411.pdf In PDF document text
    • http://supplementsformedicare.com/uploads/1/3/0/5/130588789/45a60105f82b5c4.pdfIn PDF document text
    • http://restaurantwaterloo.nl/uploads/1/3/0/6/130620681/matilek.pdfIn PDF document text
    • http://nmtitlesolutions.com/uploads/1/3/0/6/130622047/d931862.pdfIn PDF document text
    • http://danielamansfield.com/uploads/1/3/0/5/130546538/zevakemekuzu.pdfIn PDF document text
    • http://bodyworkbybarb.com/uploads/1/3/0/6/130603931/130603931.html#listeriosis+outbreak+situation+reportIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001073.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1073 8064 bytes
SHA-256: cdd75d06180eb3a9ce9319641651040e5640265872cd1c4c2173217c83f80e94
font_01_sfnt_off00004f6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F6F 2652 bytes
SHA-256: 3d52fc27d04b8b84b219df719738f768697e09c2050136bc1fe69fcddf4eca6e