MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, also contains the URL for the redirector and several other PDF files hosted on benign platforms, suggesting a link farm or SEO poisoning tactic. The primary malicious URL is https://ttraff.ru/pify?keyword=best+cards+against+humanity+questions+and+answers, which is likely used to redirect users to further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
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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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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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=best+cards+against+humanity+questions+and+answers
- http://zovefi.tjsewnsew.com/uploads/1/3/1/4/131408970/vopipew.pdf
- http://files.memoriescharcoalhouse.com/uploads/1/3/2/7/132710669/5511489.pdf
- http://vavul.theventure.blog/uploads/1/3/1/6/131606490/lalereseb.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0435/8710/9023/files/jiguwidadidulipepun.pdf
- https://cdn.shopify.com/s/files/1/0431/7370/7925/files/senikudomorujow.pdf
- https://cdn.shopify.com/s/files/1/0437/4098/7543/files/zagekodojuxo.pdf
- https://cdn.shopify.com/s/files/1/0431/6053/5196/files/sevira.pdf
- https://cdn.shopify.com/s/files/1/0430/1615/9395/files/58887455316.pdf
- https://cdn.shopify.com/s/files/1/0434/0776/9750/files/the_sociology_of_health_and_illness_nettleton.pdf
- https://cdn.shopify.com/s/files/1/0432/2200/7965/files/cholesterol_test_procedure.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58933331969.pdf
- https://cdn.shopify.com/s/files/1/0431/5843/8039/files/32771172400.pdf
- https://cdn.shopify.com/s/files/1/0435/5696/2465/files/30395588492.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004b73.binb19a34402484ad01d222a99bb4a9c01f9dd52613955f5f0fae09cf66ffa48a26 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4B73 | 5688 bytes |
font_01_sfnt_off00005eaa.binabe9616ba8828e5e8a441e0b3fbcc9405a4974d8e2efd3fd9358373487b49c13 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EAA | 9908 bytes |
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