MALICIOUS
222
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a mass of external links, many pointing to PDF files hosted on various domains, suggesting a link farm or SEO poisoning tactic. One prominent link, 'https://ttraff.club/wix?keyword=what+are+brazil%2527s+natural+resources', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this same URL, indicating the primary lure is to direct the user to this malicious site. The heuristic 'SE_INVOICE_LURE' further suggests a deceptive intent.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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Macro/content-enable lure medium SE_ENABLE_LUREDocument instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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.club/wix?keyword=what+are+brazil%2527s+natural+resources In PDF document text
- http://files.castironbrighton.com/uploads/1/3/0/7/130740524/9558521.pdfIn PDF document text
- http://files.vincentrussodesigns.com/uploads/1/3/0/7/130739783/2950643.pdfIn PDF document text
- http://files.iananthonycoleman.com/uploads/1/3/0/7/130776718/9342694.pdfIn PDF document text
- http://files.mainerobotics.org/uploads/1/3/1/6/131607331/4365508.pdfIn PDF document text
- http://files.ryanshay.org/uploads/1/3/2/6/132695749/1a877a9ba8d1.pdfIn PDF document text
- http://pijer.coonrapidscommunitystrengthfoundation.com/uploads/1/3/1/4/131437657/kudiguxo_sodowaxud_wimasuroxuvore.pdfIn PDF document text
- http://files.thepractitionertable.com/uploads/1/3/1/4/131410158/jupozozomi.pdfIn PDF document text
- http://files.createdigitalpublishing.com/uploads/1/3/1/4/131438018/27194.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://static.usrfiles.com/ugd/eed56f_dd0da9df32d943afac28e8f8101ab4be.pdfIn PDF document text
- https://static.usrfiles.com/ugd/fafc38_d92bd260d8fa4e62a3ee4f18d1ee373e.pdfIn PDF document text
- https://static.usrfiles.com/ugd/c46c8a_9acd60ce6e3f4e7cb3818d7484404f3e.pdfIn PDF document text
- https://static.usrfiles.com/ugd/724bd4_1625bae06ed147bd8de711ed48fe43ff.pdfIn PDF document text
- https://static.usrfiles.com/ugd/121e37_eba44443d4cf425bb0f8ca1e9f8d0a0f.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7243/8947/files/93341754180.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0131/4456/files/dynamics_of_machinery_notes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1765/6728/files/minipuwefanirow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5144/1563/files/37769531035.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_off0000efe8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFE8 | 5008 bytes |
SHA-256: 71aa4e670e02b9ea2fa34aad8dddbb414a30849c15fb35a6fcaf7c23894bbda7 |
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font_01_sfnt_off000100fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100FD | 11484 bytes |
SHA-256: d0f6e3fd16f005c06293fd448764edf56a42475456046a6e11e9b69ccb916ef1 |
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font_02_sfnt_off000126f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126F8 | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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