MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file was flagged as malicious due to embedded links pointing to known malicious redirector infrastructure. The primary malicious URL identified is https://ttraff.ru/wix?keyword=poirot+theme+tune+piano. The document body contains garbled text but includes the same URL, suggesting it is the intended lure. The presence of numerous other PDF links, many hosted on Shopify, indicates a potential link farm or SEO poisoning tactic to distribute the malicious PDF.
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=poirot+theme+tune+piano In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/5836/2528/files/sample_fax_cover_sheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6954/6395/files/58041495128.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3943/9510/files/wopurenetese.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5942/6968/files/syndicat_national_des_brasseurs_indpendants.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_f4f2d3a8e00f4a29adb9ef6f804fe0dd.pdfIn PDF document text
- https://static.usrfiles.com/ugd/299074_2347c8dbc7eb4c3bbc90335ce23d765a.pdfIn PDF document text
- https://static.usrfiles.com/ugd/299074_e20a619d1cbc4b4cb1d40cdb39a2a151.pdfIn PDF document text
- https://static.usrfiles.com/ugd/89363e_f28d511863ba42369415ae88a79a2395.pdfIn PDF document text
- https://static.usrfiles.com/ugd/4d400c_82d538f8c171495bb09aa8d7ec6a3e60.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4595/1400/files/94599242142.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4942/6845/files/54591776944.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8742/0835/files/a_case_study_of_internet_game_addiction.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7446/0579/files/41657828692.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_c5e2d96e8b664eca90f671195c5a7cb4.pdfIn PDF document text
- https://static.usrfiles.com/ugd/ace02d_10545f3e4e644614b2a889675b2bcc1a.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_fefe531d7f564c27b32e55273aa86ebf.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_off00007d9f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D9F | 4540 bytes |
SHA-256: c3dd73a9ab25b98bb046f38c7743eca390e13cefab38735619906ebfc3f297ba |
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font_01_sfnt_off00008d5b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D5B | 4848 bytes |
SHA-256: d1f1629c486109a0b64b76082a0d37f2e2d37b3d5107a4a4984ef3f13c1ac69e |
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font_02_sfnt_off00009dac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9DAC | 11648 bytes |
SHA-256: fa155d453f38fc40b4738eb27cbeea7bf581f688eb9a3f02b81f1b0dd2126711 |
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