Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfb149d977e0c6f3…

MALICIOUS

PDF

41.0 KB Created: 2020-09-07 02:07:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 71fe3bff83b5a963ecff242bce869bc4 SHA-1: aa9c09027cb7dba7907c8115da32192b2740c382 SHA-256: cfb149d977e0c6f34b01c968dff90c2dd0843e6087038b8a0b7365e276f2c2ae
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, including one to a known malicious redirector, ttraff.link. The document body, though heavily obfuscated, contains text suggesting it is an 'Escalation list template' and includes the malicious URL. This indicates a phishing or social engineering attempt to redirect 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.link/wix?keyword=escalation+list+template
    • https://cdn.shopify.com/s/files/1/0434/2392/4376/files/authentic_leadership_characteristics.pdf
    • https://cdn.shopify.com/s/files/1/0432/8233/3864/files/79816180408.pdf
    • https://cdn.shopify.com/s/files/1/0435/3844/8548/files/chamonix_piste_map.pdf
    • https://cdn.shopify.com/s/files/1/0428/4085/0598/files/english_tenses_worksheets_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/3385/4101/files/kogodofumurelede.pdf
    • https://cdn.shopify.com/s/files/1/0433/1061/2635/files/pete_wentz_dick_pic.pdf
    • https://static.usrfiles.com/ugd/c0b427_78f384c5d7424f2c91953427e8479d2e.pdf
    • https://static.usrfiles.com/ugd/f6336d_bf9e0dfd7c904fd6ad38dfd2866ec7d0.pdf
    • https://static.usrfiles.com/ugd/e4d7df_b29c5533b7ed4d019c600992cde0957a.pdf
    • https://static.usrfiles.com/ugd/b8c837_5d175c591d8d45b98a37a652e5fb167c.pdf
    • https://static.usrfiles.com/ugd/74e905_e3f95a8b17ae4f28b576d4ef4f5cb953.pdf
    • https://static.usrfiles.com/ugd/70a38d_1ef7c5850ada46bba02e4052a2dd6ca6.pdf
    • https://static.usrfiles.com/ugd/493135_64488f579aa44e419961bab3c57f3757.pdf
    • https://static.usrfiles.com/ugd/b914b5_0ce0c5c400f24f7797f732f235e8c8dc.pdf
    • https://static.usrfiles.com/ugd/1b8612_cdb9a17f13fc4226a2b00c7eb73122a3.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_off00006438.bin
2a670b285629e5a7a5f876f14d6694a29b893bc2965ccce0be59c3f8893abbd2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6438 4940 bytes
font_01_sfnt_off000074fa.bin
2057fe9862b7078c8a75ede2312255790fface098597127221455a3734791191		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74FA 10084 bytes

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