MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious due to its structure containing a large number of external links, a technique often used for SEO manipulation or to redirect users to malicious sites. One of the embedded URLs, 'https://ttraff.ru/pify?keyword=bts+bbmas+2019+performance+video', is flagged as a known malicious redirector. The document body contains garbled text but includes the same redirector URL, reinforcing the malicious intent. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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=bts+bbmas+2019+performance+video In PDF document text
- http://powexa.abundancecreativearts.com/uploads/1/3/0/9/130969072/58a6840e3.pdfIn PDF document text
- http://files.whisperofspirit.com/uploads/1/3/1/4/131453555/wovaluwelidovit-fopajelomal.pdfIn PDF document text
- http://nulapeji.spartanleadershipgroup.com/uploads/1/3/1/0/131070851/12088daac3692.pdfIn PDF document text
- http://files.smkluver.com/uploads/1/3/2/8/132813998/8540258.pdfIn PDF document text
- http://files.santarosaneighborhoodcoalition.com/uploads/1/3/0/7/130775257/kiwog.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/1/0429/0812/3303/files/povevegilatoruke.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3884/2779/files/wuditakidewepawiwutubuji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3510/6200/files/dikitizogogipefel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0718/0954/files/nosode.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7783/6702/files/bujomupiwizer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6345/1560/files/guias_de_medicina_ambulatorial_e_hospitalar_unifesp.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4930/3720/files/94863263520.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2040/9256/files/zuxoxigumuvuwu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5276/9192/files/kabivesesaxirono.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/8533/8526/files/werete.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/3593/0273/files/84935228156.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6561/4234/files/96910279445.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_off000055ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x55BA | 5788 bytes |
SHA-256: 85461fa6bcea803373cdb8bdc227885d9c0bbd900918283108803e499806c715 |
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font_01_sfnt_off0000694e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x694E | 9900 bytes |
SHA-256: 05bb8a3e2ebcb7915b8529b96e397a641559ec98325d36c6e138bfd25edac705 |
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font_02_sfnt_off00008b37.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8B37 | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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