MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains numerous embedded links, a common tactic for SEO link farms and redirecting users to malicious sites. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=gest%25C3%25A3o+financeira+pessoal+pdf'. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains references to financial management and the URLs, 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/pify?keyword=gest%25C3%25A3o+financeira+pessoal+pdf In PDF document text
- http://ferexek.darbsterdog.com/uploads/1/3/1/6/131607062/7986923.pdfIn PDF document text
- http://tijowo.pdxprays.com/uploads/1/3/1/0/131070993/9ddae7dbed382b8.pdfIn PDF document text
- http://files.drgrahambooks.com/uploads/1/3/0/7/130740180/mejupasomegup_narusomafi.pdfIn PDF document text
- http://files.maitlandstreetrodders.com/uploads/1/3/1/4/131437017/nufigu.pdfIn 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/1/0432/6028/0982/files/lixatisekabu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3778/4229/files/35557624740.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9476/1877/files/1519859487.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2341/8019/files/93703456327.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6415/6582/files/sufugutenatezemoxowemajuk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0058/6649/files/wonafodapufumut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8043/3302/files/sumotafugovovajidifiviva.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9896/4117/files/fogupofiferixinupegafogap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6383/6834/files/risk_matrix_table.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6823/5682/files/65437812432.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3983/3767/files/najotumonolovu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6434/5255/files/west_states_and_capitals.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5627/4339/files/organic_chemistry_6th_edition_solutions_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9095/8749/files/43603034081.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6113/9861/files/tukamimunukisuliribal.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007690.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7690 | 5496 bytes |
SHA-256: 5fd73a1f7ae83a8e74c0a2fc094a1ad5f84f4f5ff63d8942b6f55113f83b39d5 |
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font_01_sfnt_off000088be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x88BE | 12716 bytes |
SHA-256: f334aa72880caf41413ea2306c2429132af4975f71c0ee69a95d7771d22f2f02 |
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