Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0dbf1a259bbdced…

MALICIOUS

PDF

35.2 KB Created: 2020-08-27 21:10:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e3e1e2623cc67dde69a817acd1d60c2 SHA-1: e2e7383ca443b5db54cffee3889cbba02377bd3c SHA-256: d0dbf1a259bbdcedb178623d8f5158b651a84ef985b24071866dfa06278897a9
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a link farm designed to appear as legitimate content, but it ultimately directs users to a malicious redirector at 'https://ttraff.com/pify?keyword=electron+configuration+for+au2'. This technique is commonly used to obscure the final malicious destination and bypass initial security checks. The presence of numerous links to external PDFs, many hosted on Shopify, suggests a coordinated effort to distribute malicious content.

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.com/pify?keyword=electron+configuration+for+au2
    • http://files.cathrynweissportfolio.com/uploads/1/3/1/4/131407183/8511dfe48415e56.pdf
    • https://cdn.shopify.com/s/files/1/0431/3094/5693/files/kuzobitukina.pdf
    • https://cdn.shopify.com/s/files/1/0433/7827/8563/files/bufuzeseza.pdf
    • https://cdn.shopify.com/s/files/1/0430/9814/4932/files/kuzilabitumisizerelewi.pdf
    • https://cdn.shopify.com/s/files/1/0429/8945/3473/files/97030954403.pdf
    • https://cdn.shopify.com/s/files/1/0429/4849/3475/files/make_friends_and_influence.pdf
    • https://cdn.shopify.com/s/files/1/0428/8430/0959/files/82504273546.pdf
    • https://cdn.shopify.com/s/files/1/0440/1538/6789/files/at_first_sight_movie.pdf
    • https://cdn.shopify.com/s/files/1/0446/6468/4697/files/birds_name_with_pictures_and_details.pdf
    • https://cdn.shopify.com/s/files/1/0427/7665/8087/files/probability_basic_questions.pdf
    • https://cdn.shopify.com/s/files/1/0433/8037/5702/files/mafewawedurupewizoduw.pdf
    • https://cdn.shopify.com/s/files/1/0431/6214/0840/files/95038907956.pdf
    • https://cdn.shopify.com/s/files/1/0433/7431/3621/files/pdf_file_converter_free.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_off00004c5a.bin
d090ed06fbd64681c1225143e64b846191f20fb8c64ad934879cbf128cde7b78		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C5A 4960 bytes
font_01_sfnt_off00005d4c.bin
90ed58dabb1522b1f9e6c866633df454015e9d588d54673705cd82c25d81292b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D4C 10172 bytes

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