Malicious PDF — malware analysis report

Static analysis result for SHA-256 a16f01bea6b3ea8c…

MALICIOUS

PDF

39.1 KB Created: 2020-08-30 15:01:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9414b21070a3d5fe5461762b7408d753 SHA-1: fd49cb59acb590e93c80ad57d214264f29596612 SHA-256: a16f01bea6b3ea8c2b7af662a78e0f9bf93f4575ad6f096f711d2798e35d5220
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic identifying it as a PDF link farm. Another heuristic flags a link to a known malicious redirector. The document body contains garbled text but includes the URL 'https://ttraff.ru/wix?keyword=ejemplo+de+enfoque+mixto', which is also flagged as malicious. The presence of numerous Shopify links, while individually benign, contributes to the overall SEO manipulation or redirection strategy.

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.ru/wix?keyword=ejemplo+de+enfoque+mixto
    • https://cdn.shopify.com/s/files/1/0434/3971/8562/files/pokemon_black_guides.pdf
    • https://cdn.shopify.com/s/files/1/0433/8122/7672/files/jizovonuzoxozazo.pdf
    • https://cdn.shopify.com/s/files/1/0429/2503/1587/files/44704736870.pdf
    • https://cdn.shopify.com/s/files/1/0439/8671/4782/files/ohio_bmv_online_services.pdf
    • https://cdn.shopify.com/s/files/1/0438/2762/6134/files/negaturuworokoxeb.pdf
    • https://cdn.shopify.com/s/files/1/0437/6641/5514/files/mortal_kombat_x_mileena.pdf
    • https://cdn.shopify.com/s/files/1/0430/6714/6397/files/rupifal.pdf
    • https://cdn.shopify.com/s/files/1/0452/8252/5345/files/present_perfect_tense_just_already_yet.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vuxopikuxoxixu.pdf
    • https://cdn.shopify.com/s/files/1/0437/1460/9305/files/armed_forces_pension_scheme_form_14.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_off000059bb.bin
dbeca8af0f26daf88d415283e41de78cea36bc48366e2e5f979559a897feb4a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59BB 4932 bytes
font_01_sfnt_off00006a81.bin
332ea1fafc4820c1241b9aa48a8a5a0f57d54830bfc32b02b142874fc2b32015		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A81 11108 bytes

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