Malicious PDF — malware analysis report

Static analysis result for SHA-256 d00dce20dc11ac3a…

MALICIOUS

PDF

114.0 KB Created: 2020-08-30 04:54:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b979301463bbc0571cb33e8da56b6cd SHA-1: 4ea9edba0efb7d0a4d86f381a4235949cd6d70b7 SHA-256: d00dce20dc11ac3a8fc688d0bfcdc65425836f24d8da1da8516f44976b2a2e5c
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/wix?keyword=economics+krugman+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs. The document body, though heavily obfuscated, contains the same suspicious URL, suggesting an attempt to disguise malicious content as a legitimate document.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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 https://ttraff.cc/wix?keyword=economics+krugman+pdf
    • https://static.usrfiles.com/ugd/a48928_36a3ddbd16a24020a9a284a08b4c93b3.pdf
    • https://static.usrfiles.com/ugd/e5a943_74e558c62e2e4e1e8f5f3bf9a1fa03aa.pdf
    • https://static.usrfiles.com/ugd/26938b_28b6dea5d41c4e9e909d77ecb07240ac.pdf
    • https://static.usrfiles.com/ugd/b8c837_591654e411f94a9eab90d94087a75b17.pdf
    • https://static.usrfiles.com/ugd/5a1791_45fd51ccb27848028fb15754759717df.pdf
    • https://static.usrfiles.com/ugd/4725f1_188a4a7c74a843be822e93330faa451b.pdf
    • https://cdn.shopify.com/s/files/1/0429/6402/5493/files/75376662986.pdf
    • https://cdn.shopify.com/s/files/1/0437/6700/5333/files/20193125393.pdf
    • https://cdn.shopify.com/s/files/1/0434/2136/8472/files/vijutofagoganosibifup.pdf
    • https://cdn.shopify.com/s/files/1/0430/9378/6778/files/yellamma_cassette_video_songs.pdf
    • https://static.usrfiles.com/ugd/e2c250_03b85c71bb734c7a988961c5de4de24c.pdf
    • https://static.usrfiles.com/ugd/b8c837_b0045a5acf644ecd8e81c7dd61163492.pdf
    • https://static.usrfiles.com/ugd/b8c837_58c0e2677d264bdfb97c9b6145d5f366.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_off000181aa.bin
28f6922d4664d04ec84cc0b75f70f33dafef9ed1911ebc7db39fedbf581fd4a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x181AA 5464 bytes
font_01_sfnt_off00019428.bin
f62ba55299b5c1d8889ef09d60fa5ed125874193af50c64777ddfa2e2010383a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19428 11488 bytes

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