Malicious PDF — malware analysis report

Static analysis result for SHA-256 2968435667465b7b…

MALICIOUS

PDF

52.9 KB Created: 2020-04-21 20:50:37 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 0279eb0f147cb9d54060265f14ec1b89 SHA-1: a4a424e984919cfe7e71f1f19af55bde9dc11e20 SHA-256: 2968435667465b7bcec8e519b88603c2906ff1f5cc7117d2861c2d5523017e8e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The embedded document body text, though garbled, contains a URL that matches one of the extracted links. This suggests the document's primary purpose is to redirect users to a network of other PDF files, likely for malicious SEO or content hosting. No scripts were extracted from this sample.

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://crockersgrill.com/uploads/1/3/0/4/130488884/130488884.html#camille+top+s9+guide
    • http://bomenage.ca/uploads/1/3/1/4/131484029/zaranuf.pdf
    • http://drcstaxaccountingconsulting.com/uploads/1/3/1/3/131379792/10b329fe9.pdf
    • http://tworivers-storage.com/uploads/1/3/0/6/130605206/9966495.pdf
    • http://youngcelebrationsoflife.ca/uploads/1/3/0/5/130543272/ab77a.pdf
    • http://trufit-install.com/uploads/1/3/0/7/130775677/jesuxunilot.pdf
    • http://amkconstructionri.com/uploads/1/3/0/5/130588503/9239291.pdf
    • http://epicpsychologyny.com/uploads/1/3/0/7/130738621/buxubokuxuzuge-rojazisare.pdf
    • http://cindybolden.com/uploads/1/3/1/3/131398141/7874138.pdf
    • http://pogopossum.net/uploads/1/3/1/4/131454262/f7813e8b056705.pdf
    • http://buildonthat.com/uploads/1/3/0/4/130483629/2857419a648.pdf
    • http://nichollsmaguire.com/uploads/1/3/1/4/131438193/711955.pdf
    • http://kindermerica.com/uploads/1/3/0/7/130740218/pupupeb.pdf
    • http://floodresponseteam.com/uploads/1/3/1/3/131398459/dexozowiwev-borapiju-lobeg.pdf
    • http://retail-mommy.com/uploads/1/3/1/0/131070055/6826f1.pdf
    • http://exprms.com/uploads/1/3/0/5/130588296/c7dfc39.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000096a4.bin
a4544961f3ca261057daf10034b378a27f640dd56548117d909afe10b54a8424		 pdf-font-stream PDF embedded font (sfnt) at offset 0x96A4 10024 bytes
font_01_sfnt_off0000ba09.bin
267cf351bf1c0eb97668df725043b446cd79494ad2a145e4e6366c7751e1a5e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBA09 2608 bytes

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