Malicious PDF — malware analysis report

Static analysis result for SHA-256 4693e9c236eb4dc5…

MALICIOUS

PDF

31.6 KB Created: 2020-03-29 11:57:39 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 542d64096ac25812685089270087d9d6 SHA-1: 4bc5ade6431c9fdb37ad50c04e2e3b6d2998c725 SHA-256: 4693e9c236eb4dc579e3b3644ac11b5ef1436030ffe17abbb1b073253f7d0fe9
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to PDF files hosted on various domains. The heuristic 'PDF_SEO_LINK_FARM' indicates a deliberate attempt to create a link farm, suggesting a malicious intent to manipulate search engine results or distribute malicious content. The document body, though heavily obfuscated, contains references to a movie trailer, likely a lure to entice users to click on the embedded links. 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://deceptivelysimple.com/uploads/1/3/1/4/131411806/131411806.html#the+westing+game+movie+trailer
    • http://faulkfamilyhealthcare.com/uploads/1/3/0/6/130620482/70b6977e042bf.pdf
    • http://hbicares.com/uploads/1/3/1/4/131407453/30d02eb10bd.pdf
    • http://seppam.com/uploads/1/3/0/7/130776110/kerej.pdf
    • http://thecryptochicblog.com/uploads/1/3/0/7/130776676/xatosat_muteregejozara_kufulavuputam.pdf
    • http://mail.westfordregency.com/uploads/1/3/0/3/130379506/wumagajenuralo-siduk-wopuxozewa.pdf
    • http://natureguidetrainingbotswana.com/uploads/1/3/0/7/130776826/3785735.pdf
    • http://creatheses.com/uploads/1/3/0/5/130590391/sabavim.pdf
    • http://aagreenlandscapingllc.net/uploads/1/3/0/3/130323199/4516777.pdf
    • http://junglemedics.org/uploads/1/3/1/3/131384530/segojejininatat.pdf
    • http://yourhigherpower.org/uploads/1/3/0/5/130588597/6163844.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_off00005216.bin
a069e794d8e8a22f2aca794f9e8b9e75aeadda7cbcdc82647ef79a509aa4860d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5216 7620 bytes

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