Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d2e806222c5b81f…

MALICIOUS

PDF

36.3 KB Created: 2020-04-11 09:16:38 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: be5d1d1096fa596a1de6b4bbe93e6760 SHA-1: f2102b02e4fdafa597b35508b284a9e64555cd17 SHA-256: 0d2e806222c5b81f4bbd968864e15aa78df234822f4222369e4d27f6916bf3bd
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The embedded document body text, though partially corrupted, contains URLs that are also listed in the extracted URLs. This suggests the document's primary purpose is to redirect users to a network of external sites, likely for malicious SEO or to host further malicious content.

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://northwestbuildersheridan.com/uploads/1/3/0/6/130640057/130640057.html#numeros+enteros+consecutivos
    • http://designersconstruction.com/uploads/1/3/0/5/130589410/buxoguz.pdf
    • http://danielriddlerodriguez.com/uploads/1/3/1/3/131398242/4270824.pdf
    • http://auburnandopelika.com/uploads/1/3/1/3/131380292/7471554.pdf
    • http://www.erinduffybooks.com/uploads/1/3/0/6/130604511/sedogo.pdf
    • http://thejeffreyamcleanfoundation.org/uploads/1/3/1/3/131380021/4914053.pdf
    • http://muslimmh.org/uploads/1/3/0/7/130776514/gurakebowufewi-nenavunafibe-mofazamugejo-dafosupogoragos.pdf
    • http://csdovey.ca/uploads/1/3/0/5/130547116/sanezobatu_xovoperumuji_dozifegemeveb.pdf
    • http://bush-film.com/uploads/1/3/0/3/130313612/e20b5676b49a67.pdf
    • http://memesovergenes.com/uploads/1/3/0/6/130604090/pakaxagamig.pdf
    • http://bladebooking.ca/uploads/1/3/0/9/130969472/wifaz.pdf
    • http://miftahinvestmentgroup.com/uploads/1/3/0/3/130313307/lirajimivudep.pdf
    • http://victorypraiseworshipcenter.net/uploads/1/3/0/6/130639495/fipitetevezesef.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_off000062a4.bin
b2c732be47759e4c9b89e5606dd1867514aaed47c8890a62122fdb6fdba1cae8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62A4 9212 bytes

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