Malicious PDF — malware analysis report

Static analysis result for SHA-256 f236202b2b1278dc…

MALICIOUS

PDF

37.0 KB Created: 2020-08-16 21:56:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5bff373fca67f3376fcd6ed6a183d989 SHA-1: 51561e89a88c9a2b11286dc9e669e46ca602e17a SHA-256: f236202b2b1278dc71be817d6d44fae061b094317a5fdba68d1766ce14326f08
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 'https://ttraff.cc/pify?keyword=fostering+futures+fact+sheet'. It also exhibits characteristics of a PDF link farm, with numerous embedded links, many of which point to Shopify domains hosting other PDFs. The document body, though heavily obfuscated, contains the text 'Fostering futures fact sheet' and the malicious URL, suggesting a lure to trick users into clicking the redirector.

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.cc/pify?keyword=fostering+futures+fact+sheet
    • http://files.ebotsfll.ca/uploads/1/3/0/9/130969820/sojijudonodoxajozol.pdf
    • http://files.zferenovations.com/uploads/1/3/1/6/131637656/7496958.pdf
    • https://cdn.shopify.com/s/files/1/0434/3401/6924/files/39853558592.pdf
    • https://cdn.shopify.com/s/files/1/0435/2226/1143/files/bipufigukatez.pdf
    • https://cdn.shopify.com/s/files/1/0433/9679/2471/files/11145874599.pdf
    • https://cdn.shopify.com/s/files/1/0430/3749/1357/files/16913345947.pdf
    • https://cdn.shopify.com/s/files/1/0429/6556/5589/files/sinusidaxuxafikepilif.pdf
    • https://cdn.shopify.com/s/files/1/0431/8819/1394/files/sciatic_nerve_exercise.pdf
    • https://cdn.shopify.com/s/files/1/0437/2417/7557/files/sofakuxiduj.pdf
    • https://cdn.shopify.com/s/files/1/0433/2178/6521/files/75336675961.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_off000053f8.bin
81c0a23e1d752c9b4675a53db3f683a94f701387978937807b0d1815df907ac4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53F8 5064 bytes
font_01_sfnt_off00006533.bin
403ca21b2d018021bb30169ff48fe458372256d2c24e70b7e04ed738bc258c9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6533 10088 bytes

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