MALICIOUS
128
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
The PDF contains a lure related to a 'release of retention payment letter template' and includes a critical heuristic firing for a malicious redirector link. This link, 'https://ttraff.ru/pify?keyword=release+of+retention+payment+letter+template', points to known malicious infrastructure. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded links, many of which are hosted on cdn.shopify.com, suggesting an attempt to obscure the final malicious destination. The presence of a visual download button further supports a social engineering attack vector.
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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.ru/pify?keyword=release+of+retention+payment+letter+template
- http://files.weeblackbook.info/uploads/1/3/1/3/131381900/ruzojiba_makera.pdf
- http://nevogise.debbiepenz.com/uploads/1/3/2/6/132681836/6961188.pdf
- http://meluv.humphreyadventures.com/uploads/1/3/0/7/130776330/6021499.pdf
- https://cdn.shopify.com/s/files/1/0428/2423/7212/files/wixufebumedizanematu.pdf
- https://cdn.shopify.com/s/files/1/0452/8229/5969/files/alzheimer_s_disease_malayalam.pdf
- https://cdn.shopify.com/s/files/1/0438/1373/2512/files/pajuko.pdf
- https://cdn.shopify.com/s/files/1/0430/7058/7029/files/97362568626.pdf
- https://cdn.shopify.com/s/files/1/0435/2540/6874/files/canonical_form_of_boolean_algebra.pdf
- https://cdn.shopify.com/s/files/1/0433/4285/6344/files/wovatowuponabitaxuval.pdf
- https://cdn.shopify.com/s/files/1/0434/1117/7639/files/vokiresamupetobil.pdf
- https://cdn.shopify.com/s/files/1/0431/3785/9735/files/25696010373.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86593634255.pdf
- https://cdn.shopify.com/s/files/1/0434/1478/2104/files/appendix_a_form_for_gate.pdf
- https://cdn.shopify.com/s/files/1/0431/2704/6298/files/adobe_reader_pc_software_download.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_off00007035.bin9b454b33e241fca70cccabb88c714b27c6ce584940e4ebf8785eb1bff6703a91 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7035 | 5156 bytes |
font_01_sfnt_off000081b2.bin396ad69d25ad1a028034036c1fe8ecec6f7cc1a6dc72582cc9107694addf07a6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x81B2 | 10472 bytes |
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