Malware Insights
The PDF file contains a lure related to an 'attestation letter for certificate' and embeds numerous external links, with one identified as a malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that the link https://ttraff.com/wix?keyword=attestation+letter+for+certificate points to known malicious infrastructure. The 'PDF_SEO_LINK_FARM' heuristic suggests a large number of outbound links, likely for SEO manipulation or to host further malicious content. The document body, though partially corrupted, also contains the malicious URL, reinforcing the phishing or redirection attempt.
Heuristics 4
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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Embedded URL info EMBEDDED_URLOne 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=attestation+letter+for+certificate
- https://static.usrfiles.com/ugd/2274a7_e00a11c25ea4469f982ffa3df84c9b11.pdf
- https://static.usrfiles.com/ugd/b8c837_efab7b681d9a43dfa11e5b6b10af5f43.pdf
- https://static.usrfiles.com/ugd/b8c837_65578ffde2174e11a61e8ae217c79e0e.pdf
- https://static.usrfiles.com/ugd/05900a_eebd5a6e78ee477aa42bd9141ec5e785.pdf
- https://cdn.shopify.com/s/files/1/0434/7337/1300/files/gaziwaxubeloguxut.pdf
- https://cdn.shopify.com/s/files/1/0428/3708/2271/files/92735758766.pdf
- https://cdn.shopify.com/s/files/1/0437/0015/8629/files/82309303598.pdf
- https://cdn.shopify.com/s/files/1/0430/7573/1616/files/duwarikuw.pdf
- https://cdn.shopify.com/s/files/1/0430/2585/8714/files/blood_hunter_2._1.pdf
- https://cdn.shopify.com/s/files/1/0431/5866/7415/files/accounting_text_and_cases_13th_edition.pdf
- https://cdn.shopify.com/s/files/1/0437/5537/2695/files/tozenuba.pdf
- https://cdn.shopify.com/s/files/1/0435/8638/8123/files/apostol_s_calculus.pdf
- https://cdn.shopify.com/s/files/1/0440/3986/4485/files/53503574601.pdf
- https://static.usrfiles.com/ugd/23b571_5209e5d1aaac454c95ebc9b449a72953.pdf
- https://static.usrfiles.com/ugd/b8c837_f557e4f7c1954be19abf8718eafa25c8.pdf
- https://static.usrfiles.com/ugd/7e0eb0_dbd0173a5f7f49aebe7a34949b38c487.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.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000720a.bin9eba3b471c43aa702b861da8621a474201ab34558387ae219dda705bc02145de |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x720A | 4864 bytes |
font_01_sfnt_off0000829b.bin65cf44a47b0aeea3be6017e37e9149624bf2229127fbe99146dd9fad79ca2834 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x829B | 10524 bytes |
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