Malicious PDF — malware analysis report

Static analysis result for SHA-256 877728c222208a0c…

MALICIOUS

PDF

44.0 KB Created: 2020-03-27 03:16:26 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 44bc54580e2ff5d475faa27f922b78d9 SHA-1: f1fda1126baa80ac0c94febd78bfc8ce29253182 SHA-256: 877728c222208a0c2c88d5b55cd28478e32ff7456ed59cd32253122ddd930bb7
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, a technique often used to distribute malware or conduct phishing attacks. The document body, though heavily obfuscated, contains text related to a medical care plan, likely serving as a lure. The primary heuristic identified a link farm of PDF documents hosted on various domains, suggesting a coordinated effort to redirect users to potentially malicious content.

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://localcrimescenecleanup.info/uploads/1/3/0/5/130546593/130546593.html#perforated+appendicitis+nursing+care+plan
    • http://www.panimals.com/uploads/1/3/0/5/130590548/pusixawawanajifu.pdf
    • http://veladinatura.com/uploads/1/3/0/7/130739488/zixosodi.pdf
    • http://tannerromleski.com/uploads/1/3/0/7/130776499/6667518.pdf
    • http://untakenpath.com/uploads/1/3/0/2/130287283/4455345.pdf
    • http://hopehousejourneyofhope.org/uploads/1/3/0/7/130776102/742674.pdf
    • http://adamcirucci.com/uploads/1/3/0/3/130313213/xizalak.pdf
    • http://mfest.com.au/uploads/1/3/0/7/130775982/8047697.pdf
    • http://texascenterforregionalstudies.org/uploads/1/3/0/4/130488415/kudupu.pdf
    • http://zumaliwoesurfboards.com/uploads/1/3/0/6/130620249/wexuzuxujegamubovik.pdf
    • http://stmmlwr.org/uploads/1/3/0/5/130538875/binogifixizez.pdf
    • http://kumc.dadgifts.us/uploads/1/3/0/6/130640163/3940190.pdf
    • http://www.todorental-net.todorental.com/uploads/1/3/1/0/131070220/getuxoj.pdf
    • http://slocampnpack.com/uploads/1/3/0/7/130739129/54b509c309ee.pdf
    • http://thezedhotel.com/uploads/1/3/0/5/130545733/vuxetuzame.pdf
    • http://usalottoking.com/uploads/1/3/0/3/130312929/ronafepabori.pdf
    • http://4jvgp.bpmtc.com/uploads/1/3/0/2/130272333/849bdf65b0.pdf
    • http://amgidaho.org/uploads/1/3/0/6/130639779/nazaneku.pdf
    • http://sunriseblendroasters.net/uploads/1/3/0/6/130604993/7f1758a4b.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_off00008530.bin
3c50d28d7e727dec3bef91a82db72db273c27fbd2fd52ce7b1990a17fb9769b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8530 7516 bytes

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