Malicious PDF — malware analysis report

Static analysis result for SHA-256 86ea4cd6baa67c9a…

MALICIOUS

PDF

42.4 KB Created: 2020-04-01 17:37:29 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 415e6ebfd9328e2fd1880c4cff022852 SHA-1: 661eb32e2de6f33838b49cf677fe1249f94a6f96 SHA-256: 86ea4cd6baa67c9a74f6a629e2ca4ed473aba900f54732fafa4c2a780d52f10f
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many pointing to domains that appear to be part of a link farm or SEO manipulation scheme. The document body, though partially corrupted, includes a URL that leads to a page with similar characteristics. This suggests the primary purpose is to drive traffic to these external sites, potentially for malicious advertising, phishing, or hosting further malware. 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://ias-biz.com/uploads/1/3/1/3/131398025/131398025.html#educational+leadership+philosophy+example
    • http://yoga-junkie.org/uploads/1/3/0/8/130813582/papaju_reduveza_ludumusam_delosej.pdf
    • http://thegoodnewsnow.org/uploads/1/3/0/5/130551486/2737238.pdf
    • http://mta-sts.nutec-remodeling.com/uploads/1/3/0/7/130739234/465038.pdf
    • http://venturesportfolio.com/uploads/1/3/0/7/130739558/foxanawululuri.pdf
    • http://nycasianescortscall.com/uploads/1/3/0/3/130323717/7eaf63cb65e7a8.pdf
    • http://signaturewisdom.com/uploads/1/3/0/3/130323559/c704cbc54488c.pdf
    • http://mystlwedding.com/uploads/1/3/0/6/130604549/noziwe-mipujege.pdf
    • http://dnavfitness.com/uploads/1/3/1/0/131070035/18028ecdf.pdf
    • http://stbbqandcatering.net/uploads/1/3/1/3/131383734/kowatimijulajajulumi.pdf
    • http://silverfromtaxcorafaela.com/uploads/1/3/0/3/130379696/350414fd112165.pdf
    • http://medasistsjcoe.com/uploads/1/3/0/6/130621771/xixikeres.pdf
    • http://kelseycookofficial.com/uploads/1/3/0/2/130289603/2926241.pdf
    • http://edsnively4iid.com/uploads/1/3/0/9/130969166/zakujimamegekedej.pdf
    • http://dekeure.nl/uploads/1/3/0/7/130740318/novamasaw.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_off00006c74.bin
862c705423cbf3d023eb2137c31b71f2a2c424bdd15fec1c81dcc9974ea4c1f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C74 7080 bytes
font_01_sfnt_off00008872.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8872 16036 bytes

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