Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd1d4471fed138f1…

MALICIOUS

PDF

43.0 KB Created: 2020-08-19 06:23:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d3bfa9f988b35ab73234ad3a3becdf5 SHA-1: e01b1dae57ccab07f28b20fb7e9aacd244353cb8 SHA-256: dd1d4471fed138f1bec9c84f17f48a759c944a510aae5510de604e1317c5e9f8
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources. One critical heuristic identified a link to known malicious redirector infrastructure (https://ttraff.ru/pify?keyword=crafting+guide+gw2+weaponsmith), suggesting a malicious intent to lure users to harmful sites. The document body contains garbled text and embedded URLs, further supporting the link farm attack pattern.

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/pify?keyword=crafting+guide+gw2+weaponsmith
    • http://files.danielshrigley.com/uploads/1/3/2/7/132740464/kifotuwurifekapigod.pdf
    • http://files.nuslobbu.com/uploads/1/3/2/6/132680986/5213677.pdf
    • https://cdn.shopify.com/s/files/1/0431/8350/5570/files/37508569314.pdf
    • https://cdn.shopify.com/s/files/1/0429/9682/6261/files/black_demon_slayer_task.pdf
    • https://cdn.shopify.com/s/files/1/0461/9416/3863/files/transunion_credit_report_for_landlords.pdf
    • https://cdn.shopify.com/s/files/1/0452/5791/6577/files/dapavifinibur.pdf
    • https://cdn.shopify.com/s/files/1/0446/7779/1897/files/spanish_numbers_worksheet_answers.pdf
    • https://cdn.shopify.com/s/files/1/0452/2383/7856/files/school_vocabulary_flashcards.pdf
    • https://cdn.shopify.com/s/files/1/0434/3067/4597/files/pabazetapapabuwelobowukiv.pdf
    • https://cdn.shopify.com/s/files/1/0428/1666/7814/files/bezaka.pdf
    • https://cdn.shopify.com/s/files/1/0429/5183/5801/files/writing_equations_of_parallel_lines_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0429/0668/1497/files/gadezilufikosabodedim.pdf
    • https://cdn.shopify.com/s/files/1/0429/8014/7359/files/rads_error_lol_windows_10.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_off00006be3.bin
bf57aaa4ee501f0462938b25787fe65ec2118de476c01c7b2c49d31004532ebe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BE3 5552 bytes
font_01_sfnt_off00007ea8.bin
08fadc7fbaae2e6cc2d63b55d0b060adf8f4cdfdaceb1ca28f78dfc4b77fe9a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EA8 9564 bytes

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