MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to a redirector service. The primary malicious URL identified is ttraff.ru, which is known to host malicious content. The document body, though obfuscated, contains references to worksheets and URLs, suggesting a lure to a malicious site. The ML classifier strongly indicates maliciousness.
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=greater+than+less+than+worksheets+4th+grade In PDF document text
- http://raluluwoz.nicolakeenonstage.com/uploads/1/3/2/8/132815094/xelowiledetumefive.pdfIn PDF document text
- http://files.silanilab.com/uploads/1/3/1/6/131606256/gepozanamepetusuzugo.pdfIn PDF document text
- http://files.horseshelpingpeople.net/uploads/1/3/1/8/131857060/c4666.pdfIn PDF document text
- http://fonilewuk.2deep2.com/uploads/1/3/1/0/131070611/lored-remafajobigu-zilaxotemaxej.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/1/0432/6375/4408/files/24852405373.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9286/9281/files/d_d_circle_of_the_moon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4017/8333/files/98789746243.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0445/3462/8516/files/anatomy_of_abdominal_organs.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8254/6341/files/26031281789.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0189/6347/files/momuxututodo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4300/4322/files/alan_turing_the_enigma_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8709/4179/files/mabanugixi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2117/1864/files/mimicry_is_the_sincerest_form_of_flattery.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8984/5671/files/cow_eye_diagram.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0364/2007/files/wobiboxu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8254/7361/files/autocad_file_to_converter.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1307/9203/files/ribimuwir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4230/8250/files/dapanotomujasomex.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_off000062ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62ED | 5100 bytes |
SHA-256: 90e31c89d6482c186c3927c51634089be5f2063d009a78e98fa0bc3d410085a0 |
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font_01_sfnt_off00007452.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7452 | 9804 bytes |
SHA-256: d6c77f5f934fe1b40d9ebc3db50a4d6fa7512b8b374ab37bc8e930a4c15e575d |
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font_02_sfnt_off000095e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x95E3 | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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