Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba3b83f3ee03437a…

MALICIOUS

PDF

47.1 KB Created: 2020-09-09 00:08:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63bb3cb68d5fb2e3f6d5968e8c764b82 SHA-1: 24e9f181f1688a857a4d0f77feb78de249db9182 SHA-256: ba3b83f3ee03437a4bb08fe0fc3a0d5924242a10520708286385a92e912a5fde
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.me, which is disguised as a guide for the game 'World of Warcraft: Wrath of the Lich King'. The document body also contains this URL and numerous other links to PDFs hosted on static.usrfiles.com, suggesting a link farm or redirection strategy. The primary malicious URL is likely used to direct users to a phishing or malware distribution site.

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.me/wix?keyword=wow+wotlk+leatherworking+guide
    • https://static.usrfiles.com/ugd/a01749_45669c11d22c45d984b6e236d898971c.pdf
    • https://static.usrfiles.com/ugd/37987b_e68676fdef8741a9b692b2321bbf562c.pdf
    • https://static.usrfiles.com/ugd/98e298_84ed38239fd6495599da260fdea09609.pdf
    • https://static.usrfiles.com/ugd/576447_e49bf40056c14a569628fa2d91306919.pdf
    • https://static.usrfiles.com/ugd/1f2646_0617b986931541bda48280e3630798a9.pdf
    • https://static.usrfiles.com/ugd/fedf23_924dbdfc759f41b897426cfa02a788ad.pdf
    • https://cdn.shopify.com/s/files/1/0432/0601/7185/files/16094281400.pdf
    • https://cdn.shopify.com/s/files/1/0433/3276/3801/files/96547014060.pdf
    • https://cdn.shopify.com/s/files/1/0432/3137/9619/files/kozowudiruwenoxiwiza.pdf
    • https://cdn.shopify.com/s/files/1/0429/6140/4060/files/memifibupenekojuzijosuf.pdf
    • https://static.usrfiles.com/ugd/83f04e_74b799ccce3848629f2b499d2d9d92ca.pdf
    • https://static.usrfiles.com/ugd/c12414_24c8552aa56348dd96b15f88346b3c54.pdf
    • https://static.usrfiles.com/ugd/f09a9d_e2ebcc309a30488faa3a01cf046a2bb7.pdf
    • https://static.usrfiles.com/ugd/9f69bd_85390b5ba0044a189dca0ef2d805c5a3.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/
    • https://cdn.shopify.com/s/files/1/0432/0601/7185/files/16094281400.p

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007b8a.bin
5a75ebee1282cf313384c0a8532aa8ddb2dd357207edf628e5906fb2dfa52c14		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B8A 5080 bytes
font_01_sfnt_off00008ce2.bin
008aeb44275fb146931732d7533ed61fd568f07b4d5450813eae8dab19371929		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8CE2 10060 bytes

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