Malicious PDF — malware analysis report

Static analysis result for SHA-256 c27e8c1d86a5c7d8…

MALICIOUS

PDF

42.7 KB Created: 2020-08-30 20:15:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 578a138605433611d698ee3b3949b2dc SHA-1: 59639208b4e8f3d4b1a53a5b0b0a7d2d0c645a29 SHA-256: c27e8c1d86a5c7d8dd13ef3ae7a9f8249069b8d1631b84a35aa813fa64c1b438
120 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to a redirector URL. The primary malicious URL identified is ttraff.cc, which is known for malicious redirection. The document body contains text that appears to be metadata and a reference to the malicious URL, suggesting a lure to trick users into clicking the link.

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/wix?keyword=dying+to+be+me+pdf
    • https://cdn.shopify.com/s/files/1/0430/8199/0295/files/61407522490.pdf
    • https://cdn.shopify.com/s/files/1/0434/3624/5142/files/oxymoron_schoolboy_q.pdf
    • https://cdn.shopify.com/s/files/1/0436/9963/4330/files/58033051519.pdf
    • https://cdn.shopify.com/s/files/1/0430/1419/3311/files/kopawazeva.pdf
    • https://cdn.shopify.com/s/files/1/0437/2611/0888/files/what_is_bivariate_analysis.pdf
    • https://cdn.shopify.com/s/files/1/0464/3264/9368/files/75370326241.pdf
    • https://cdn.shopify.com/s/files/1/0431/2806/2109/files/application_form_for_lost_canadian_passport.pdf
    • https://cdn.shopify.com/s/files/1/0437/8315/9957/files/jezavevow.pdf
    • https://static.usrfiles.com/ugd/b8c837_0509c4930e4f42fbb07dcd56a78f5ac6.pdf
    • https://static.usrfiles.com/ugd/b8c837_45a7289066404131857ee4b4a092155d.pdf
    • https://static.usrfiles.com/ugd/451461_15406d9c9c73444ea3f67b63cf4ea58c.pdf
    • https://static.usrfiles.com/ugd/3f80ec_bcd0a0064774483caa7c2c9bbf02a85a.pdf
    • https://static.usrfiles.com/ugd/b8c837_3b8b994bfbaf4669bd8201a54318016d.pdf
    • https://static.usrfiles.com/ugd/b8c837_66738736f2ad4c5b98e62a0b1133a496.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_off00006a28.bin
7846f32b675f1899077bdf5bd061dc94fc30cc184be98e1830fd1e6c26e2912c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A28 5084 bytes
font_01_sfnt_off00007b6e.bin
d30fbcb6dcffe29e866e675d636bd86a3cd0bac656ac49a6f203ec75841422e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B6E 10120 bytes

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