Malicious PDF — malware analysis report

Static analysis result for SHA-256 d08b11699524f05a…

MALICIOUS

PDF

67.8 KB Created: 2020-08-18 22:45:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ab59994985f9bcab872f14547c664ef SHA-1: 7ce1106c5d2b5aaae684f4034b40fd8d0c8cd4ac SHA-256: d08b11699524f05a2faea8db6d6b616891e2ab3a3e5782be9132b813d0e4b891
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though partially corrupted, includes this URL and appears to be a lure for 'Shopify templates free'. The PDF also contains a link farm heuristic, indicating it hosts numerous external links, many of which point to Shopify domains, likely to improve SEO and disguise malicious intent. The primary malicious IOC is the redirector URL.

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=shopify+templates+free
    • http://jujidop.tenderheartsppd.com/uploads/1/3/1/4/131452976/tuzasobudel.pdf
    • http://dabudaso.osmint.com/uploads/1/3/0/7/130739894/rolezul.pdf
    • http://files.cool-cat.store/uploads/1/3/0/8/130874278/7aeb46bbe4b.pdf
    • https://cdn.shopify.com/s/files/1/0439/4749/1486/files/83785947910.pdf
    • https://cdn.shopify.com/s/files/1/0433/9462/9788/files/fujumuw.pdf
    • https://cdn.shopify.com/s/files/1/0429/6769/5511/files/puvajejefisobunupebetiguj.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53151925343.pdf
    • https://cdn.shopify.com/s/files/1/0434/0583/6438/files/66328291148.pdf
    • https://cdn.shopify.com/s/files/1/0435/0086/3640/files/conduction_of_heat_in_solids_carslaw.pdf
    • https://cdn.shopify.com/s/files/1/0428/1230/9671/files/gokozumabanaguw.pdf
    • https://cdn.shopify.com/s/files/1/0434/4899/1910/files/moxozozilakazatasegexotoz.pdf
    • https://cdn.shopify.com/s/files/1/0432/5762/6792/files/bidovevoxetubuzusomedifi.pdf
    • https://cdn.shopify.com/s/files/1/0434/7179/8424/files/biology_questions_and_answers_form_1.pdf
    • https://cdn.shopify.com/s/files/1/0430/0364/2007/files/how_to_redeem_steam_code.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bf3b.bin
8331d805c2b7e108a5afd210276d0f9f669ad909b7221e616b8880ac8e6e9e5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBF3B 5028 bytes
font_01_sfnt_off0000d055.bin
a8a7d6fe714391a877468656e005973560dac8cdf397c4850c611a60904329c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD055 10420 bytes
font_02_sfnt_off0000f3eb.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF3EB 4324 bytes

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