Malicious PDF — malware analysis report

Static analysis result for SHA-256 561e6e3640eb6031…

MALICIOUS

PDF

57.4 KB Created: 2020-08-26 17:15:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 449930fcbdc39006b7261669991d2880 SHA-1: 4ff2985832f224cbdbfe4fe8ede81bd23f92f839 SHA-256: 561e6e3640eb6031d9bf560fce0b95c1001a75c6bd3755d0a2cfbf5722c61d0e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass of external links, many pointing to benign Shopify domains, but one critical link directs to a malicious redirector at ttraff.com. This suggests the document's primary purpose is to lure the user to malicious infrastructure. No scripts were extracted, and the document body is heavily obfuscated, but the presence of the malicious redirector URL is a strong indicator of malicious intent.

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=statistical+analysis+sas+pdf
    • http://files.capetipseafood.com/uploads/1/3/1/4/131405958/siduxujup.pdf
    • http://files.irishmasonichistory.com/uploads/1/3/1/0/131071196/1de9d5a97f.pdf
    • http://files.ctcphiladelphia.com/uploads/1/3/0/9/130969206/8376287.pdf
    • http://files.thehandmadehydrangea.com/uploads/1/3/1/3/131383665/guwumutar.pdf
    • http://remurofu.meadsandmeadows.co.uk/uploads/1/3/1/3/131380729/341161eb6ade.pdf
    • https://cdn.shopify.com/s/files/1/0434/1648/6040/files/1047922199.pdf
    • https://cdn.shopify.com/s/files/1/0430/0711/5423/files/gafotozelejotuwumomuli.pdf
    • https://cdn.shopify.com/s/files/1/0434/6331/1513/files/15964345961.pdf
    • https://cdn.shopify.com/s/files/1/0433/3669/5959/files/apple_checklist_template.pdf
    • https://cdn.shopify.com/s/files/1/0445/4907/9204/files/23301373192.pdf
    • https://cdn.shopify.com/s/files/1/0433/1136/6309/files/c_language_programs_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0431/5211/3820/files/dalajurolerovemadedufav.pdf
    • https://cdn.shopify.com/s/files/1/0463/1468/4573/files/24694980311.pdf
    • https://cdn.shopify.com/s/files/1/0428/8430/0959/files/rasawuzaz.pdf
    • https://cdn.shopify.com/s/files/1/0433/6055/1062/files/23449722277.pdf
    • https://cdn.shopify.com/s/files/1/0432/7879/4917/files/udl_lesson_plan_template_google_doc.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_off0000a08a.bin
eebf2f20c4d136801f784e88c1ee07dc3b8fa008993090ffd20f4ef0acd57f39		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA08A 5260 bytes
font_01_sfnt_off0000b27e.bin
2228f30e05e8505d58511c07e0768bcbd913ea9dcc2c2e4aa4899ae16a4f1ae7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB27E 11172 bytes

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