MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, pointing to ttraff.ru. The document body, though heavily obfuscated, contains the same URL and appears to be a lure related to statistical sampling. The PDF also contains a large number of external links, suggesting a link farm or SEO poisoning tactic. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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=formula+para+sacar+la+muestra+de+una+poblacion+peque%25C3%25B1a In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://static.usrfiles.com/ugd/0a0016_0e175d5f8e8347bb98429bb0b49d314a.pdfIn PDF document text
- https://static.usrfiles.com/ugd/9f6a24_4eb5087cf61649b18adc5bf1ddb19ec3.pdfIn PDF document text
- https://static.usrfiles.com/ugd/ae059d_6de082cd944f495cb8bf62f261e8bfbb.pdfIn PDF document text
- https://static.usrfiles.com/ugd/d216cb_8308ad07a0d9422cb0aba352f3ba0514.pdfIn PDF document text
- https://static.usrfiles.com/ugd/bca722_f1ff59be9da347f4817b7e2e32e3a0df.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0485/2386/files/how_to_reset_google_wifi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/0181/8781/files/supporting_teaching_and_learning_in_schools_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3993/2064/files/boxhead_the_rooms.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5857/7056/files/bootstrap_3_form_validation_plugin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8049/8841/files/xitovomemikinakuz.pdfIn PDF document text
- https://static.usrfiles.com/ugd/850f07_a67ddf97bf8646c085aecf566c61f327.pdfIn PDF document text
- https://static.usrfiles.com/ugd/badafb_1f53bceab8f24e58a5183aa355f07b3a.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_cf749022ce3b4451b87ed439770c196e.pdfIn PDF document text
- https://static.usrfiles.com/ugd/cb5dea_eef6ef08299c4f50be452b5bf818f749.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_13cec9d0f67f43a7acac605aaaaa5d1e.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0310/8768/files/gusafijekijexat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9143/5422/files/ssh_key_file_permissions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0461/7814/0323/files/18491856312.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000064bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x64BC | 3040 bytes |
SHA-256: a20bb4f408d8f784ad73c3448e4c5f25c27999cb50838481ad122ee355a0e39f |
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font_01_sfnt_off00006fa7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FA7 | 5652 bytes |
SHA-256: 850053405875171962017b9da9e514ea40eb222cb88992ec66e11bd94ea2789f |
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font_02_sfnt_off00008278.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8278 | 10572 bytes |
SHA-256: 57113f211ac4088c854fa2b6c10426211f7f1f01a1f56af76ab89c51ec07f621 |
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font_03_sfnt_off0000a50c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA50C | 16192 bytes |
SHA-256: c00f55c8a23f8fc12478e3e4ea1bac713d25e4d1dd6e1e4bb5c667610ba6b2cf |
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