Malicious PDF — malware analysis report

Static analysis result for SHA-256 29380999f71dcfac…

MALICIOUS

PDF

39.5 KB Created: 2020-09-16 15:22:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 91f2468c834e9af21b38c54de764ca93 SHA-1: 2a405bdab4b61c9cf6f2dc479ffdfde8dbe8b5b0 SHA-256: 29380999f71dcfac655c7c720ab370fcc870ad87abb5e67553ccc181c913a756
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one identified as a malicious redirector. The document body, though heavily obfuscated, appears to contain the malicious URL, suggesting a phishing or redirection attempt. The presence of a link farm heuristic further supports the malicious intent of directing users to external, potentially harmful, sites.

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=middle+school+developmentally+appropriate
    • https://513516e2-9a38-4e52-a515-1892be70dc6c.filesusr.com/ugd/d5415a_b2acdde5c0f341a7ae246fefc447028e.pdf?index=true
    • https://939637b6-5a02-4f41-bdd7-4d8c8c102eba.filesusr.com/ugd/0582e0_ec649c9356b946c189fdcec7d1a2a4e1.pdf?index=true
    • https://773d5987-8dd5-4c25-919a-abb7f4e10bf2.filesusr.com/ugd/2994dd_c2412b4832434302b05669124e6dc223.pdf?index=true
    • https://9aaa747d-c5b1-4392-add9-86b0ecd0d960.filesusr.com/ugd/143c98_513c914467c340e1aa871fa6e4d6956e.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0434/4591/1709/files/43251816140.pdf
    • https://cdn.shopify.com/s/files/1/0440/0496/6565/files/andr_aciman_appelle_moi_par_ton_nom.pdf
    • https://cdn.shopify.com/s/files/1/0437/8768/1952/files/51817385140.pdf
    • https://cdn.shopify.com/s/files/1/0436/4982/6969/files/xifajozizobevemoxorin.pdf
    • https://cdn.shopify.com/s/files/1/0429/6241/9863/files/plush_crib_sheet_saver.pdf
    • https://0aca8a36-0e85-4eec-8531-213e694b9656.filesusr.com/ugd/221eaa_3f28d59485d04543862272c6f7847ac5.pdf?index=true
    • https://ff97e056-a4d3-480e-882e-ca5d7d60c3dd.filesusr.com/ugd/78daac_ba28091448974a9194e67d17a83018a1.pdf?index=true
    • 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_off00005bf9.bin
9025fefc372ab1d01c2361a774dafba231521cfc75bef43f2d7e836eca68fa0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BF9 5480 bytes
font_01_sfnt_off00006e8a.bin
9e1ffcb85ebc01f50f1d037b9fd0504db3e3b5828e0204230ad8838c6a5421d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E8A 10160 bytes

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