Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa46e05bcc5152fb…

MALICIOUS

PDF

47.2 KB Created: 2020-08-30 22:29:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67135c634743cbb68ca8622e0e9b277d SHA-1: de0bb583e5f45c0a30608da703d0447a996dd11a SHA-256: fa46e05bcc5152fb0305c102b4c35a2a9dcc7686a0a4dc74664ff934dc74a7b6
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised with a seemingly legitimate keyword. The document also functions as a link farm, pointing to numerous PDFs hosted on Shopify. While no scripts were extracted, the presence of a malicious redirector and the link farm structure strongly suggest a phishing or social engineering attempt to lead the user to malicious content.

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/wix?keyword=civil+air+patrol+specialty+tracks
    • https://cdn.shopify.com/s/files/1/0435/1524/8794/files/maparisaluvigepexeserijuw.pdf
    • https://cdn.shopify.com/s/files/1/0433/3685/9813/files/19087113014.pdf
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/cloud_9_start_postgres.pdf
    • https://cdn.shopify.com/s/files/1/0431/4375/7992/files/malaria_plasmodium_life_cycle.pdf
    • https://static.usrfiles.com/ugd/625844_910739ef02dd4242b024b794de55aa1e.pdf
    • https://static.usrfiles.com/ugd/b8c837_255cab9218ea446897b28ca64baf0d1b.pdf
    • https://static.usrfiles.com/ugd/9421c8_8b694188a678454e8830d11f68278147.pdf
    • https://static.usrfiles.com/ugd/b8c837_baadac04fac64f9b8afedd72cb7e4441.pdf
    • https://static.usrfiles.com/ugd/b8c837_319dcc4883274e6bb420b8e9bea3a978.pdf
    • https://cdn.shopify.com/s/files/1/0463/3326/4027/files/vifidapab.pdf
    • https://cdn.shopify.com/s/files/1/0434/1451/9966/files/34774554554.pdf
    • https://cdn.shopify.com/s/files/1/0431/1000/6940/files/zefugewagob.pdf
    • https://cdn.shopify.com/s/files/1/0431/7062/7735/files/9393344366.pdf
    • https://static.usrfiles.com/ugd/ea78e0_148f5bc6c8ee45eb8ab75ec6754a841a.pdf
    • https://static.usrfiles.com/ugd/b85eb0_c55c7d5ff45c43fe950ccbd43d4df3c9.pdf
    • https://static.usrfiles.com/ugd/b8c837_f9e4d317237c4a8abd64382f6cff5931.pdf
    • https://static.usrfiles.com/ugd/95089d_d9400aafd48c4f168a7f0b65ea73fff4.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_off00007d55.bin
27e10cfc65e2a370db30b209567d6b2e1c52b7e493c3218e2e1c7aade5a86713		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D55 5060 bytes
font_01_sfnt_off00008ea4.bin
ebc1bbb043b53767c45e3107d36c60de83d4f5b2ac017cd90972434cd7dd1598		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8EA4 9720 bytes

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