Malicious PDF — malware analysis report

Static analysis result for SHA-256 80eb9a0380300cd2…

MALICIOUS

PDF

43.7 KB Created: 2020-09-01 02:25:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 589816291d3aa55a0942c0a7f6e9eabe SHA-1: 9f0e1adaf202c6f361110830b90b36738302daeb SHA-256: 80eb9a0380300cd28f750aad0417897003b80d9f04a2d3e4e49770c233fbf8df
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, disguised as a 'cable gland selection guide pdf'. This link, https://ttraff.me/wix?keyword=cable+gland+selection+guide+pdf, is the primary indicator of malicious intent. The document also exhibits characteristics of a link farm, embedding numerous external PDF links, many of which point to Shopify domains. No scripts were extracted, but the presence of the malicious redirector strongly suggests a phishing or social engineering attempt to lead the user to a compromised 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=cable+gland+selection+guide+pdf
    • https://static.usrfiles.com/ugd/b8c837_351a181d98fa4a3eb7301eebd9f2f107.pdf
    • https://static.usrfiles.com/ugd/911c12_dc3d064b0a0a44739815b53a80352f41.pdf
    • https://static.usrfiles.com/ugd/b8c837_73181e1b6a07469f92a8411a8466978c.pdf
    • https://static.usrfiles.com/ugd/6df952_3c05855525e44d2bb6b43f9283a127c8.pdf
    • https://static.usrfiles.com/ugd/f0f215_1e2eb0a4ad2a41dab374f6da723ac3fd.pdf
    • https://static.usrfiles.com/ugd/0047a4_884d6928e7dc44b384cb1cb088b9665c.pdf
    • https://cdn.shopify.com/s/files/1/0436/0034/7299/files/azar_grammar_4th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0427/9838/3260/files/85234466117.pdf
    • https://cdn.shopify.com/s/files/1/0430/5561/2058/files/11999336937.pdf
    • https://cdn.shopify.com/s/files/1/0440/8547/7541/files/95854534679.pdf
    • https://cdn.shopify.com/s/files/1/0434/9932/3558/files/3429993034.pdf
    • https://cdn.shopify.com/s/files/1/0433/5727/4270/files/sofuvizemudetinek.pdf
    • https://cdn.shopify.com/s/files/1/0462/6507/3818/files/83350357567.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fec.bin
da5af98d5afc577178fa75f5132dd2a7c309cd4ffbf748edd75ef43dd9c846ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FEC 5272 bytes
font_01_sfnt_off000071f0.bin
9729c1a4a748b8fb6303d4e86afdbd4c1c40e8faa0704d6001acf11d31d398b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71F0 10004 bytes
font_02_sfnt_off00009428.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9428 4324 bytes

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