Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ed70802512db9bf…

MALICIOUS

PDF

47.2 KB Created: 2020-04-19 21:30:26 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8bb9708aa2f807206a560a00853dba0f SHA-1: 0f579300dc2628f3d37bad82f46f37050615faf6 SHA-256: 6ed70802512db9bf7e945ec8180a619b55c83501a2ebcbba985d8f00841daa36
96 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a technique often used for SEO spam or to redirect users to malicious sites. The document body mentions 'Avast cleanup review android', suggesting a lure to attract clicks. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://septiccleaningsalem.com/uploads/1/3/0/2/130274024/130274024.html#avast+cleanup+review+android
    • http://thenutritioustruth.com/uploads/1/3/0/5/130539416/tafudafomevosomi.pdf
    • http://bluecanyongamereserve.com/uploads/1/3/1/4/131406435/452935.pdf
    • http://athenaasiapacific.com/uploads/1/3/1/3/131379060/5497187.pdf
    • http://luckritzformayor.org/uploads/1/3/0/6/130605325/nofutosasufewesuwos.pdf
    • http://mattkessler210.com/uploads/1/3/0/6/130621444/5f4b56d76c.pdf
    • http://alpost24.org/uploads/1/3/0/5/130589083/pusijebezezena.pdf
    • http://isabellabroggini.com/uploads/1/3/0/8/130873941/gomunuvomesifavaza.pdf
    • http://taipeiministorage.com/uploads/1/3/0/5/130544232/muxosijaroxupepapiku.pdf
    • http://milesbetter.info/uploads/1/3/0/4/130483136/kaxexejigedexova.pdf
    • http://larnerinvestments.com/uploads/1/3/0/7/130775143/xomive.pdf
    • http://simplynature-fineartphotography.com/uploads/1/3/0/2/130272979/3306999.pdf
    • http://paulamoffett.com/uploads/1/3/1/4/131406442/c8c091e644e0901.pdf
    • http://trilogybikeclub.com/uploads/1/3/1/4/131406086/riropobadumizo_vaduvu_dakisimofo_tomudunos.pdf
    • http://outlawradiofm.com/uploads/1/3/0/9/130969874/nodubujubawu_nategubafegisa_defifowewavu_xoxatumufi.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008ef9.bin
f4ff3f39d832ca37e599674479b37d308869ae589007c7c75ec478b4bdea7bea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8EF9 8908 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.