Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc002f2d865b0c57…

MALICIOUS

PDF

39.2 KB Created: 2020-05-09 20:18:02 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b58c6969e4eb857f6f4b4b0afec0d4bc SHA-1: 220e1b5a0d21d7fe9d0697e9b18cb8a4d28d8b8b SHA-256: bc002f2d865b0c57cf7db6bf541204f148b838d465fac310bc7836e8d91e4194
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF document contains numerous external links, identified as a link farm, with the initial lure text 'Granny meme template'. The ML classifier strongly indicated maliciousness. The primary attack pattern involves redirecting users to a network of linked domains, likely for SEO manipulation or to host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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
  • 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://phoenix1st.net/uploads/1/3/1/3/131383207/131383207.html#granny+meme+template
    • http://punchlistexpress.com/uploads/1/3/1/3/131398128/8263973.pdf
    • http://amberceceliapottery.com/uploads/1/3/0/6/130605133/dowoterotenim.pdf
    • http://higradenc.com/uploads/1/3/0/8/130814462/bigovitisunigugo.pdf
    • http://jeazh-artz.com/uploads/1/3/0/9/130969726/xokizow-zuteno-negobutubif.pdf
    • http://educationalinteractiv.com/uploads/1/3/0/5/130543364/e72f79b5d0a2.pdf
    • http://scbhrserv.com/uploads/1/3/1/0/131070538/xojakenofuxe.pdf
    • http://debbiegoldenberg.com/uploads/1/3/0/5/130588710/8855464.pdf
    • http://alexiszotos.com/uploads/1/3/0/2/130288483/1643646.pdf
    • http://floreriaangela.org/uploads/1/3/0/7/130740151/6815b7ee975cf.pdf
    • http://orsiesproperty.net/uploads/1/3/0/5/130589080/bezikiromota-zowul-pikolomivetudub-sezezupuz.pdf
    • http://lilcatbrewing.com/uploads/1/3/1/3/131380977/furar-pamizi-bigiwadexa.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • 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_off00006cc6.bin
190d1ec04dd71ae005819c058e777c8e9a15420d91009c5e61f6d3ee3f7e8035		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CC6 11076 bytes

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