MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to external resources, a technique often used to obscure malicious destinations. One critical heuristic identified a link to known malicious redirector infrastructure at https://ttraff.ru/wb?keyword=cv%20format%20for%20job%20pdf. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains references to job-related PDFs and the malicious URL, suggesting a lure to trick users into visiting potentially harmful sites.
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/wb?keyword=cv%20format%20for%20job%20pdf In PDF document text
- http://files.providence-ca.org/uploads/1/3/0/8/130814110/woziwobuxodewefel.pdfIn PDF document text
- http://files.redtentmidwives.com/uploads/1/3/2/7/132740234/4488043f1394f.pdfIn PDF document text
- http://mojaf.meigspto.com/uploads/1/3/2/6/132695269/6b844e.pdfIn PDF document text
- http://files.channelreligion.com/uploads/1/3/0/8/130814118/4274558.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/1/0433/6805/4940/files/dofus_huppermage_guide_pvm.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2122/2567/files/car_games_parking.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7640/9751/files/fusionner_plusieurs_page.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7341/4055/files/60470950219.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6239/4008/files/mubilejeriwid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1801/7175/files/solving_one_step_linear_equations_worksheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6049/4485/files/dmv_driving_test_in_creole.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0413/3525/files/learning_spanish_basics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0947/2669/files/communication_skills_games_for_students.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8220/3801/files/27866999553.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5226/9717/files/tajododuganolerukejibo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0409/9735/files/calvinismo_resumo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7236/4445/files/dutilutazitavufipetaxin.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_off00006078.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6078 | 4792 bytes |
SHA-256: 89d9a6b5b7bb501b596b794906145bb1736417a702219ad484cb6cd3a2a6ff2b |
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font_01_sfnt_off000070c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70C8 | 10320 bytes |
SHA-256: 1c632cfa8d42163f2ff8d1be8088cb69dcbdd63ed646e327406c8c306c96b441 |
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font_02_sfnt_off000093e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x93E3 | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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