Malicious PDF — malware analysis report

Static analysis result for SHA-256 94704fccd5cd27c6…

MALICIOUS

PDF

43.1 KB Created: 2020-04-06 12:30:56 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 0d1470c1dfdffb0fc572704b455f5f03 SHA-1: 415d0117b7404f703112bc6fcd5dcf14b7396794 SHA-256: 94704fccd5cd27c654b95719058259eeae22331fe4a283deb3326bcaa23be182
94 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or distribution mechanism. The ML classifier also strongly indicated maliciousness. The document body contains garbled text but also includes URLs that are part of this link farm. The primary attack pattern appears to be directing users to external, potentially 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://kayakali.com/uploads/1/3/1/4/131406118/131406118.html#estructura+de+la+balanza+de+pagos+en+mexico+2018
    • http://bloomingtonlawncareservices.com/uploads/1/3/0/5/130551651/vaxonozan.pdf
    • http://oktoberfestmountaincreek.com/uploads/1/3/0/5/130540176/2ab0f0b8c.pdf
    • http://simplygreenhomeservices.com/uploads/1/3/0/2/130287893/xupesofalapor.pdf
    • http://aatideas.net/uploads/1/3/0/6/130620859/0e0744de6b.pdf
    • http://dreamcakesbydeb.com/uploads/1/3/0/7/130738732/livuga.pdf
    • http://fixyourhealthcare.com/uploads/1/3/0/4/130483428/9a4e4dd34f9.pdf
    • http://mytransparentlife.com/uploads/1/3/0/5/130590475/xosedos.pdf
    • http://peacevine.net/uploads/1/3/0/5/130546183/xamovinubad_tinali_xosuzagadakipu.pdf
    • http://wegotyoufoundation.org/uploads/1/3/1/3/131398101/kezori.pdf
    • http://metroprointeriors.com/uploads/1/3/0/5/130543256/putonowafakidukepibo.pdf
    • http://momandpopsholisticshop.com/uploads/1/3/0/4/130483459/poxenepepafofo_tiras_kidofodobomewem_vonimujifix.pdf
    • http://shakespeareaslivingtheatre.com/uploads/1/3/0/7/130738673/9168771.pdf
    • http://kidperfectextreme.com/uploads/1/3/0/5/130551258/vuxiro_xigikebuzi_gujodivud_wabado.pdf
    • http://realtyexpressions.org/uploads/1/3/0/3/130324451/vuvajif.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_off00008085.bin
6683af7424361776d9f778c24eb7682aad1d3934617d81e65e9e9850059f3935		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8085 7684 bytes

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