Malicious PDF — malware analysis report

Static analysis result for SHA-256 48d5aa45e431dcce…

MALICIOUS

PDF

47.4 KB Created: 2020-08-19 21:41:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c6d99b6f63570dc0a0a116783388c63 SHA-1: b7b088f6dfac338af00d1bdd2121e8efb1ee38f3 SHA-256: 48d5aa45e431dcce197f5ee8dce1c89953817d23abf5ee4fce8edb9254c975f5
120 Risk Score

Malware Insights

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

The PDF document contains a link to a known malicious redirector, ttraff.com, which is disguised as an NCIS: Los Angeles episode guide. The document also features a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning tactic. The primary malicious intent appears to be directing the user to the ttraff.com 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.com/pify?keyword=ncis+los+angeles+episode+guide+wiki
    • http://files.sheilaberger.com/uploads/1/3/1/4/131482884/3679609.pdf
    • http://files.colinwhitby.com/uploads/1/3/2/3/132302928/jipotetife.pdf
    • https://cdn.shopify.com/s/files/1/0433/2303/1720/files/23777391959.pdf
    • https://cdn.shopify.com/s/files/1/0433/8014/6339/files/63901979409.pdf
    • https://cdn.shopify.com/s/files/1/0428/9314/8313/files/25052506756.pdf
    • https://cdn.shopify.com/s/files/1/0461/8990/4021/files/bhikari_film_songs_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/0673/0144/files/petebozu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0463/2992/files/66012113060.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/girotimovu.pdf
    • https://cdn.shopify.com/s/files/1/0433/7054/5308/files/kuremutazigozufowedawe.pdf
    • https://cdn.shopify.com/s/files/1/0436/9124/5733/files/85981325786.pdf
    • https://cdn.shopify.com/s/files/1/0449/0631/5943/files/business_proposal_example.pdf
    • https://cdn.shopify.com/s/files/1/0432/8200/6174/files/double_fitted_sheet_size_uk.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_off00007d26.bin
fd259e8171b00578a85830dd39f01fd0b1174dd1869c64e1506654efa5a96631		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D26 5268 bytes
font_01_sfnt_off00008f34.bin
ac50bad818ec815e2dd97862703833124c9db34aac84921101a5c14422d97c9e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F34 9908 bytes

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