Malicious PDF — malware analysis report

Static analysis result for SHA-256 be383611b0503c30…

MALICIOUS

PDF

31.5 KB Created: 2020-06-02 11:26:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54735f2657555086741ffc9a65279a0b SHA-1: e63f4245f351e3a1a6d3a584ee17502100e41fa9 SHA-256: be383611b0503c3053a547e96775c066ccf65828e4db5c026dddf17f65564b43
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, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body, though partially obfuscated, suggests a lure related to a 'Story plot mountain graphic organizer'. The primary intent appears to be directing users to a network of websites, likely for malicious purposes such as malware distribution or phishing, as indicated by the numerous unknown reputation URLs.

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://nicolecthomaswrites.com/uploads/1/3/0/2/130271245/130271245.html#story+plot+mountain+graphic+organizer
    • http://kpcomplete.com/uploads/1/3/0/6/130604602/17f51951c815.pdf
    • http://asaerlandson.com/uploads/1/3/1/8/131856129/2849f5d0.pdf
    • http://amobilis.fr/uploads/1/3/1/3/131380288/8ccb81.pdf
    • http://northern-carbon.com/uploads/1/3/1/4/131483098/vugupin_mefasiliw.pdf
    • http://crossfireboomerang.us/uploads/1/3/1/1/131164448/10e998144f9f7b.pdf
    • http://nicolecthomaswrites.com/uploads/1/3/0/2/130271245/terms.html
    • http://nicolecthomaswrites.com/uploads/1/3/0/2/130271245/dmca.html
    • http://nicolecthomaswrites.com/uploads/1/3/0/2/130271245/policy.html
    • https://podanowusotu.files.wordpress.com/2020/05/kowalefedimopisil.pdf
    • https://megewusebu.files.wordpress.com/2020/05/6931332010.pdf
    • https://difovasiven.files.wordpress.com/2020/06/tugixasebemuvidejadufi.pdf
    • https://tetakorure.files.wordpress.com/2020/05/42638100886.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_off000051f9.bin
457ab147f0d6b4f63bd3775f1ba3c70428ded236b7cce20c6671daab6563dd6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51F9 9640 bytes

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