MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains this URL and references Google Sheets, suggesting a lure to trick users into clicking the malicious link. The presence of numerous external PDF links, many hosted on Shopify, further indicates a link farm or SEO poisoning tactic. The ML classifier also strongly flagged this PDF as malicious.
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/pify?keyword=google+sheets+sum+between+sheets In PDF document text
- http://files.tdsacanada.com/uploads/1/3/2/6/132681670/riridogunek.pdfIn PDF document text
- http://files.europeandeliriumassociation.org/uploads/1/3/2/8/132814305/vasibuzigifig-xumapo-gamibagu-bupan.pdfIn PDF document text
- http://files.hairandmakeupbydesire.com/uploads/1/3/0/7/130739693/bisutidok.pdfIn PDF document text
- http://vekirugew.greenhillspediatrictherapy.com/uploads/1/3/1/0/131070450/9263459.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0440/6679/9766/files/mapobo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8806/8254/files/wojegixosimanopukegizeva.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7084/9181/files/nolejimepepesofepepufuzi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0889/1807/files/79881860859.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6296/6937/files/guwonojilakijo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/8904/9238/files/10029637090.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8841/2836/files/1122250705.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3264/8602/files/kejerutegab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5354/7677/files/merakirewav.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4977/0399/files/learn_latin_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0017/4504/files/wejuwezotuxovoxiwula.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6222/3263/files/dell_poweredge_r730_owner_s_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5583/2471/files/sijapuzewafedozavolerumo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2598/7746/files/15924815599.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005fb9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FB9 | 4888 bytes |
SHA-256: bf1b31027b5509db49dcb18ff38adf25bdb8a9569a54292e751bdd20f28fee22 |
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font_01_sfnt_off0000705b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x705B | 10008 bytes |
SHA-256: 23deba6e8fe106f5338f941941358cae41610bdde4f3d154204bdb0a20734dc6 |
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font_02_sfnt_off0000929b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x929B | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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