MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged as malicious by a machine learning classifier and contains a significant number of embedded links. One critical heuristic identified a PDF redirector link pointing to `https://ttraff.ru/wix?keyword=introductory+analysis+houghton+miffl`, indicating a likely attempt to lure users to a malicious site. The document body, though heavily obfuscated, also contains this URL and numerous other links to external PDFs, suggesting a link farm or redirection strategy.
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/wix?keyword=introductory+analysis+houghton+miffl
- https://static.usrfiles.com/ugd/b8c837_84d00b0aba554ca59aefe89adaa1aa86.pdf
- https://static.usrfiles.com/ugd/b8c837_9cd91499aace4db4a667e13825fa6b25.pdf
- https://static.usrfiles.com/ugd/b8c837_720f27dbbeea4f4584d63ef9ccc4cf04.pdf
- https://static.usrfiles.com/ugd/8127dd_bac68c26c1ac43a289ac718a0d9dca42.pdf
- https://cdn.shopify.com/s/files/1/0465/1158/7478/files/xotomobisafivobifofetovur.pdf
- https://cdn.shopify.com/s/files/1/0431/0892/5600/files/20316329662.pdf
- https://cdn.shopify.com/s/files/1/0427/4746/1788/files/11159555754.pdf
- https://cdn.shopify.com/s/files/1/0432/6051/0376/files/tirebudokinodesitatugukop.pdf
- https://cdn.shopify.com/s/files/1/0439/4647/5675/files/bosch_hydrosensor_dishwasher_manual.pdf
- https://cdn.shopify.com/s/files/1/0437/4514/9079/files/caslon_540_roman_font_free.pdf
- https://cdn.shopify.com/s/files/1/0435/3120/6808/files/tamibodolebipisujezirowir.pdf
- https://cdn.shopify.com/s/files/1/0433/9246/7109/files/zotabiwegatafexalufow.pdf
- https://cdn.shopify.com/s/files/1/0432/6778/4864/files/lopetu.pdf
- https://cdn.shopify.com/s/files/1/0437/9839/7085/files/duwibigawajiledux.pdf
- https://cdn.shopify.com/s/files/1/0430/3188/8021/files/92828852379.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_off000069e5.bin9ae03179171913a90f0d287dde4392a6a7ae2183d54a5ba186f33985c88a277e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x69E5 | 5472 bytes |
font_01_sfnt_off00007c58.bin3093ce4306b236703cf75756de2b8cb2bed6fe8c55f4be71ff02c26c72709282 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C58 | 10060 bytes |
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