MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
T1059.001 PowerShell
The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though partially corrupted, includes a URL that appears to be part of an SEO poisoning or link farm strategy. The primary malicious link is https://ttraff.cc/pify?keyword=causas+y+consecuencias+del+cancer+de+pulmon+pdf, which is likely used to redirect users to further malicious content. The ML classifier also strongly indicated maliciousness.
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.cc/pify?keyword=causas+y+consecuencias+del+cancer+de+pulmon+pdf In PDF document text
- http://tigaled.beneficialreturns.com/uploads/1/3/1/3/131379730/pilebasaba.pdfIn PDF document text
- http://texemi.lillyzuckerman.com/uploads/1/3/1/4/131453698/mavonumipotisoxudo.pdfIn PDF document text
- http://pupatokuw.dearborncountyhs.org/uploads/1/3/0/7/130776330/7836475.pdfIn PDF document text
- http://files.vintagewoodworkingtools.com/uploads/1/3/1/4/131452735/kusukewe_temutojazasisej_mimug_gegokogajawusu.pdfIn PDF document text
- http://files.nativitymenlo.org/uploads/1/3/2/7/132741169/bapajiteto.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/1/0433/0687/7080/files/97503793953.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/0807/7473/files/minna_no_nihongo_2.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8565/1358/files/sanidezafisonaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4690/1672/files/xinamogo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9779/2415/files/razilufifatunos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mipin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6874/4087/files/data_structures_and_algorithms_interview_questions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9780/8285/files/xexetinizategefimi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8471/7979/files/58619166314.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0043/0746/files/zenadixafamozusepa.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_off00009148.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9148 | 5228 bytes |
SHA-256: c823226ac6e935760f8deabd3f0f014e29dcfc7054f20193442b7af4060c515f |
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font_01_sfnt_off0000a2f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA2F2 | 11540 bytes |
SHA-256: 3788f6b7914813ff906d951b9011beb60001e7fffcf8be2e02cd591f624c8200 |
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font_02_sfnt_off0000c875.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC875 | 4324 bytes |
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
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