Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a2dfc70cd16ae2c…

MALICIOUS

PDF

45.1 KB Created: 2020-03-17 13:01:13 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 411f5c3fb2162f57414ea0bd0b0d7a8c SHA-1: f95074f705c6d05768877178cf41dec9cd0896c3 SHA-256: 2a2dfc70cd16ae2cb76ce4d727391f575d8a924b63b471d4ac1544b5609fcfcc
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains a large number of external links, many of which point to other PDF files hosted on similarly structured domains. This indicates a link farm or SEO poisoning tactic, likely intended to drive traffic to malicious or compromised websites. The document body contains garbled text and a single functional URL, which is part of this link farm. 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://arcadiagardensllclandscapinganddesign.com/uploads/1/3/0/2/130288383/130288383.html#funcion+del+pl%C3%A1smido+en+la+celula+procariota
    • http://brixhamswalkoffame.com/uploads/1/3/0/5/130588280/wunef.pdf
    • http://www.baijingbox.com/uploads/1/3/0/6/130639886/9625650c168.pdf
    • http://renemogensen.net/uploads/1/3/0/2/130288316/jewanegij.pdf
    • http://nursesdirectllc.com/uploads/1/3/0/5/130588867/2402490.pdf
    • http://alanmaps.com/uploads/1/3/0/4/130489536/xofuvozawixow.pdf
    • http://www.redhoundstudios.com/uploads/1/3/0/3/130323513/9632219.pdf
    • http://jablk.com/uploads/1/3/0/4/130476672/leronuwopusek_kupexidizawaz_zakuzu_woput.pdf
    • http://akakeb.com/uploads/1/3/0/2/130289724/7975812.pdf
    • http://rawk-cbd.net/uploads/1/3/0/6/130639124/vawefefirakuv.pdf
    • http://www.cerita-ku.com/uploads/1/3/0/2/130288707/vobugoxid_lefalafiwikolu_sizinudukutoweb.pdf
    • http://nintendolifetimeacademy.com/uploads/1/3/0/4/130488833/puwetimome.pdf
    • http://sailewangyuleji.br3h.com/uploads/1/3/0/7/130738679/jixeve_pujinatolivad.pdf
    • http://shawnsealer.com/uploads/1/3/0/2/130287407/pezazoxinuxaf-vopen-tabitulin-safifewol.pdf
    • http://www.gogreenlife.net/uploads/1/3/0/3/130323527/6782759.pdf
    • http://beckybledsoe.com/uploads/1/3/0/2/130291827/jajobefujewiv_vosuxevuwot_kesilipeneko_nazomiji.pdf
    • http://riverboatcollectables.com/uploads/1/3/0/6/130622101/800d0.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_off00007776.bin
671932f760e6bdeab208507f7f8356923101df9ee6928df43e8803746bd6b49c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7776 8832 bytes
font_01_sfnt_off0000971f.bin
885781ec91db75dc8c4a6a3d3dac0324bdfdb8f2239dab70466c62035ae072da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x971F 4144 bytes

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