Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc827c1680f62997…

MALICIOUS

PDF

43.1 KB Created: 2020-08-14 16:23:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80ce9d41a7955d41435a29735d49ec43 SHA-1: 8e7a73eafdba6c1e9b2fdd28bc7211352978cb15 SHA-256: fc827c1680f62997bab5d1c212520892417357adfaed4a52eb0941ffb1b4e31b
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 specifically identifying it as a 'PDF_SEO_LINK_FARM'. Another heuristic flags a link to a known malicious redirector. The embedded URLs suggest an attempt to lure users to external sites, potentially for phishing or malware delivery. No scripts were extracted, and the document body is heavily obfuscated, making it difficult to determine a more specific attack pattern beyond link-based redirection.

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=bull+shoals+lake+fishing+report+2018
    • http://files.nextgenclinical.com/uploads/1/3/1/4/131453623/xakimimasujebamuz.pdf
    • http://files.mcscftirwin.org/uploads/1/3/0/8/130814902/todinokikaxewosek.pdf
    • https://cdn.shopify.com/s/files/1/0438/4882/7040/files/tosegekibu.pdf
    • https://cdn.shopify.com/s/files/1/0428/6126/5062/files/54787790577.pdf
    • https://cdn.shopify.com/s/files/1/0428/6827/7415/files/tutorial_python_3._7.pdf
    • https://cdn.shopify.com/s/files/1/0438/5685/5190/files/buliboxujafomugajevegu.pdf
    • https://cdn.shopify.com/s/files/1/0435/0168/2843/files/16148936449.pdf
    • https://cdn.shopify.com/s/files/1/0437/1303/6439/files/african_court_of_justice.pdf
    • https://cdn.shopify.com/s/files/1/0441/3197/5320/files/sufowudaguzataj.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xifadek.pdf
    • https://cdn.shopify.com/s/files/1/0437/3292/6616/files/sibulatajuviw.pdf
    • https://cdn.shopify.com/s/files/1/0429/3964/6108/files/angular_resource_example.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_off000068ad.bin
3e8ed26a7cc34c6ba238cef209aec16209052f15a0c253f244c7e546e44ac5f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68AD 5796 bytes
font_01_sfnt_off00007c6a.bin
7ed26dfa7e6c5434baffb296655e377466499e8dbab791301184c6451470802b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C6A 10692 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.