Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c1681751a44a3a5…

MALICIOUS

PDF

34.9 KB Created: 2020-05-23 00:30:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 740103d7611108dec9e445c2bda2e75d SHA-1: b148c17734fb1a89dc6c02506f735fb9b3410d9f SHA-256: 2c1681751a44a3a546ae0d03f4b54d7d6664ef5221fedca7c4bae9d1af7e671c
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, a common technique for SEO poisoning or driving traffic to malicious sites. The document body text, while partially corrupted, includes a lure related to 'Professor Messer security course notes' and points to the URL http://order.finalturnracing.com/uploads/1/3/0/7/130740118/130740118.html#professor+messer+security+course+notes. The heuristic PDF_SEO_LINK_FARM indicates a link farm, suggesting the primary purpose is to direct users to a network of related domains.

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://order.finalturnracing.com/uploads/1/3/0/7/130740118/130740118.html#professor+messer+security+course+notes
    • http://nicholasryan.net/uploads/1/3/0/2/130287997/2570500.pdf
    • http://nobakebodycare.shop/uploads/1/3/1/4/131452816/wipesajenu.pdf
    • http://scottmemorialcog.com/uploads/1/3/1/4/131438840/9412926.pdf
    • http://stoneandsageapothecary.com/uploads/1/3/0/4/130483187/wawegedebugep.pdf
    • http://nataliebatmitzvah.com/uploads/1/3/0/6/130639336/aa21959.pdf
    • http://allnbaseball.com/uploads/1/3/0/5/130588506/4e0df1a4882f9.pdf
    • http://goodforthesoulbydanit.com/uploads/1/3/0/6/130621457/4287634.pdf
    • http://pandanuspod.com/uploads/1/3/0/6/130621369/8405576.pdf
    • http://ordinaryexamples.com/uploads/1/3/1/3/131379671/tuvogovonomabetorud.pdf
    • http://untermyer.org/uploads/1/3/1/3/131398324/7596712.pdf
    • http://gsstlcenter.org/uploads/1/3/1/3/131383486/1674244.pdf
    • http://premierbitcoinatm.com/uploads/1/3/0/2/130287454/8931.pdf
    • http://debraallanconsultants.com/uploads/1/3/0/5/130590008/wogogavifukexov.pdf
    • http://aydconsultancy.com/uploads/1/3/0/8/130814861/wufonififixavo.pdf
    • http://tradewindsnursery.com/uploads/1/3/1/8/131871883/riduwijavinoza.pdf
    • http://kidmyn.com/uploads/1/3/0/7/130775756/vopuwu_fatoxob.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_off00005c7b.bin
3776d6924ed1a7910444a52de922afa5aee8c70bf9cf6526119c7c16085b1564		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C7B 10380 bytes

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