Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ec357109514a6cb…

MALICIOUS

PDF

40.3 KB Created: 2020-03-30 08:55:46 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 95f567b90e07b93e067599e403c350f2 SHA-1: de2542698ef86a127ab0b1e54f49616059a41a4f SHA-256: 8ec357109514a6cbc71b66402df397cd08f9ce86bb2e578240ba70f489415f1e
62 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links likely serve to either manipulate search engine rankings or to host further malicious content. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms. The document body contains garbled text and metadata, offering no clear user-facing lure.

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://greenwolfverticalfarm.com/uploads/1/3/0/6/130620893/130620893.html#ciencias+politicas+ucm+profesores
    • http://jenningsbuiltit.com/uploads/1/3/0/2/130289695/8029259.pdf
    • http://jenniferstrach.com/uploads/1/3/0/9/130969143/gopozofewet-dubunusel-faxilededodov.pdf
    • http://lucernemobilehomepark.com/uploads/1/3/0/4/130483322/betav.pdf
    • http://dunkinbrandsfs.com/uploads/1/3/1/3/131379362/8884115.pdf
    • http://kwcallcenterservices.com/uploads/1/3/0/2/130272440/rubinafo.pdf
    • http://ascoconstruction.net/uploads/1/3/0/6/130639641/d07447d49bd.pdf
    • http://susan-ritz-art.com/uploads/1/3/0/7/130739416/welesoxejadat.pdf
    • http://wavyas.com/uploads/1/3/0/3/130313087/3095931.pdf
    • http://vegansofbrookhaven.com/uploads/1/3/0/5/130541209/zowikopokexis.pdf
    • http://naturalkinksinthecreek.com/uploads/1/3/1/1/131163615/suzirusem_luwulexivogosi_levupebul_junexafokefo.pdf
    • http://sidlangley.com/uploads/1/3/0/2/130289603/zisadobak_suxunekoj.pdf
    • http://johnraywatts.com/uploads/1/3/0/6/130620354/95cd1deef914f9b.pdf
    • http://michaelmkrueger.net/uploads/1/3/0/9/130969907/mewerulan.pdf
    • http://atlas-constructionltd.net/uploads/1/3/0/5/130590357/basokojo.pdf
    • http://shotbyra.com/uploads/1/3/0/5/130590481/9317068.pdf
    • http://collegestudyingstyles.com/uploads/1/3/0/5/130551468/327949.pdf
    • http://prosocialsolutions.org/uploads/1/3/0/7/130775753/4916528.pdf
    • http://kudzurva.com/uploads/1/3/0/2/130274345/4696564.pdf
    • http://thomaserandall.ca/uploads/1/3/0/8/130814040/nanomepupakoxu.pdf
    • http://digitallynourished.com/uploads/1/3/0/6/130605015/3671235.pdf
    • http://allpropool.com/uploads/1/3/0/6/130640078/notunutosupivanozel.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_off00007274.bin
606c5a08fbb2eb606793732d9473dcb51ee065585d221e351b4298be76a3afb8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7274 8848 bytes

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