Malicious PDF — malware analysis report

Static analysis result for SHA-256 b800f65d3df7fbc3…

MALICIOUS

PDF

48.7 KB Created: 2020-03-27 04:51:24 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b2529a6c2ac037a4d413bf9b53cf1fbf SHA-1: 82461160d44301e5c51f14e34169cd93656ed59f SHA-256: b800f65d3df7fbc330946e9f269ebef45981dc554d6ae5829944b661666d5ba8
92 Risk Score

Malware Insights

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

The PDF contains a large number of external links, indicating a link farm strategy. The primary heuristic firing, PDF_SEO_LINK_FARM, confirms this, identifying 30 external PDF links hosted on various domains. The embedded URL also points to a similarly structured HTML file. This suggests the document is designed to redirect users to potentially malicious content or engage in SEO manipulation.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://everestdobie.com/uploads/1/3/0/3/130323155/130323155.html#i+need+u+girl+bts+chords
    • http://globalhealthhighschool.org/uploads/1/3/0/3/130324092/keginivafoka_devorujiza.pdf
    • http://safesontario.com/uploads/1/3/0/7/130775134/3141251.pdf
    • http://anonymousimage.org/uploads/1/3/0/2/130289493/gowodu-liwubupejokop-nadofovamin-bixit.pdf
    • http://bearcatbfcsoccer.com/uploads/1/3/0/5/130546885/mitimipi-fikasebiwob.pdf
    • http://acegiftshop.net/uploads/1/3/0/2/130273893/latotino.pdf
    • http://smithlitsterparticulateprocesses.com/uploads/1/3/0/6/130640021/wuliveli-nuremojadareko-lumusos.pdf
    • http://mrmdatarecoveryservices.com/uploads/1/3/0/6/130604878/fudif.pdf
    • http://thisweeksbestdeals.co.uk/uploads/1/3/0/8/130873864/gofufepixixepala.pdf
    • http://thursdayrome.com/uploads/1/3/0/6/130604733/tojezefixepilol-jisidifema-rilumow-xerogologagi.pdf
    • http://myviccas.com/uploads/1/3/0/3/130313411/rebijeromam.pdf
    • http://rebuildcm.co/uploads/1/3/0/6/130604986/rakolopiduviler.pdf
    • http://heartandhandllc.com/uploads/1/3/0/7/130739811/sapajusew-vizividikosobug.pdf
    • http://knoxbuilders.org/uploads/1/3/0/9/130969680/fijetugeb.pdf
    • http://dailyiphonetips.com/uploads/1/3/0/6/130604621/2cd061d30e63.pdf
    • http://unseenbeautytrinkets.com/uploads/1/3/1/0/131070149/2173e908fd31f.pdf
    • http://villarebate.net/uploads/1/3/0/6/130639296/7356b0f9.pdf
    • http://replicontainer.com/uploads/1/3/0/4/130476043/liferosefomek.pdf
    • http://hostmaster.wordgetsaroundmagazine.com/uploads/1/3/0/7/130776641/7961486.pdf
    • http://positivelightmedia.studio/uploads/1/3/0/6/130639652/1480141.pdf
    • http://piewedge.com/uploads/1/3/0/7/130740483/1150413.pdf
    • http://brodiehubbard.com/uploads/1/3/0/5/130546118/futapupile.pdf
    • http://firstaccountingllc.com/uploads/1/3/0/6/130621636/wojakojesub.pdf
    • http://forrestpaddleboard.com/uploads/1/3/0/5/130539325/0542949fa0.pdf
    • http://mta-sts.mx.tarahanish.com/uploads/1/3/0/6/130604948/fef7352c64c05.pdf
    • http://firstaccount
    • 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_off00008049.bin
6205e419f57624209f40a1240c093155902054e74f947a6cba4cbd8b874248ce
pdf-font-stream PDF embedded font (sfnt) at offset 0x8049 9828 bytes
font_01_sfnt_off0000a477.bin
d152a30b0cab08b421ba32f1c2c36e06d2a7e5e195151f3684ca5a4085317e3d
pdf-font-stream PDF embedded font (sfnt) at offset 0xA477 4728 bytes