MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains numerous embedded links, many of which point to a redirector service that appears to be part of an SEO link farm. The document body and heuristics indicate a lure for cracked software, specifically 'nitro pdf to word converter crack download'. The presence of a password-protected archive lure suggests the document is intended to bypass initial security scans by encrypting a malicious payload. The ML classifier strongly indicates maliciousness.
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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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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=nitro+pdf+to+word+converter+crack+download In PDF document text
- http://files.asweetpetitedesigner.com/uploads/1/3/0/7/130775195/080579d8c96.pdfIn PDF document text
- http://files.live-life-organized.com/uploads/1/3/1/4/131408117/lunopib_japamo_jakowezedux.pdfIn PDF document text
- http://files.kingsporthorses.com/uploads/1/3/1/6/131607374/014d297abc02d.pdfIn PDF document text
- http://files.thevillagevoiceschorus.org/uploads/1/3/0/8/130813108/1453475.pdfIn PDF document text
- http://files.postplumbingheatingandair.com/uploads/1/3/0/8/130813409/fc6987d96b.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/1/0435/6866/0643/files/sujoziza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6055/0046/files/mevugitazemomofoxaleki.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6558/1468/files/77070560697.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1564/3042/files/la_conjugaison_12020_verbes_bescherelle_hatier.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5480/7717/files/fibonacci_sequence_recursion.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bovegutug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6370/4729/files/c_g_jung_memories_dreams_reflections.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5736/2597/files/vodugezogujolazu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6348/4315/files/ninafabajitatabubologo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2155/7150/files/problem_and_solution_essay.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_off0000658f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x658F | 4944 bytes |
SHA-256: 04adc18e6bd24916810600dbadcaa04a4defa250131b25b66a6b520c06e66734 |
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font_01_sfnt_off00007684.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7684 | 12284 bytes |
SHA-256: 30d7c22c4cf2d37fd2fdbcae43c004b6fdf79240720ad9bfd2f11725379fdc2e |
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font_02_sfnt_off00009e7f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9E7F | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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