Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb07a28bbd0d1e07…

MALICIOUS

PDF

46.6 KB Created: 2020-04-10 08:42:41 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3b83f6c3fba3174a025edcdcff94f3f7 SHA-1: 4344e36854d3ba2e675b79686bf1769808d5c856 SHA-256: fb07a28bbd0d1e0722e70b632dc9a8b7936f9d275454fcf1246fc46c71a7d7b0
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or a distribution mechanism for further malicious content. The document body contains garbled text and a reference to 'vida sostenible concepto', which may be a lure. No scripts were extracted from this sample.

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://pragueprivatetransfers.com/uploads/1/3/0/4/130483981/130483981.html#que+es+vida+sostenible+concepto
    • http://avenmoran.com/uploads/1/3/0/6/130621369/85e9aa0f9.pdf
    • http://jonathanpschwartz.com/uploads/1/3/0/4/130491008/tanidosodeb-wigurekojuvo-nagapimipe-xetaxugowalewe.pdf
    • http://alpinecraftedwoodworks.com/uploads/1/3/0/7/130740427/47c7e393142f7f2.pdf
    • http://topmcars.com/uploads/1/3/1/0/131070711/wivixefifizeva_goged_fogavugakadada.pdf
    • http://lbellc.com/uploads/1/3/0/2/130272435/476728.pdf
    • http://balludicrous.com/uploads/1/3/0/5/130588614/540eb31e24.pdf
    • http://insideedgestrategiesanddesign.com/uploads/1/3/0/3/130324005/difus.pdf
    • http://amandaarensdorf.site/uploads/1/3/0/2/130288559/9998b2da61b4.pdf
    • http://jcslcompany.org/uploads/1/3/0/4/130489536/lalepupizoverog_muxufigitujupo.pdf
    • http://wabuskanevada.com/uploads/1/3/0/4/130483761/7701275.pdf
    • http://rockconcorp.com/uploads/1/3/1/4/131438541/f4584.pdf
    • http://jmarketingco.com/uploads/1/3/0/2/130289510/7020015.pdf
    • http://dakotaplayers.com/uploads/1/3/0/4/130488539/guzivap.pdf
    • http://gbunchy.com/uploads/1/3/0/6/130621119/534961.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_off000078ca.bin
59138641c3c05fbd7318c852bc69e5caaf05aeaeea0e72538268ea3a80ca33e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78CA 8696 bytes
font_01_sfnt_off00009882.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9882 16036 bytes

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