MALICIOUS
192
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://cctraff.ru/aws?keyword=human+psychology+books+in+tamil+pdf In PDF document text
- https://cdn-cms.f-static.net/uploads/4370264/normal_5f8de4badcb87.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411481/normal_5f95701f8ccce.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370541/normal_5f88c077d6aef.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4391317/normal_5f935bee3c345.pdfIn PDF document text
- https://terarawuterojuz.weebly.com/uploads/1/3/0/7/130739827/binuzepanes.pdfIn PDF document text
- https://xikosenazegan.weebly.com/uploads/1/3/0/7/130739601/85745c1d4419.pdfIn PDF document text
- https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/wirexanusir.pdfIn PDF document text
- https://jalewigevat.weebly.com/uploads/1/3/2/6/132681207/9152020.pdfIn PDF document text
- https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/vunud.pdfIn PDF document text
- https://vetidemilutuzu.weebly.com/uploads/1/3/4/4/134492936/6882976.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368751/normal_5f87cd192cd9b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369304/normal_5f907301dd0c5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366041/normal_5f8d8e53af5fd.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411511/normal_5f94f7421a760.pdfIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/60a4f92e-368f-4518-b3f9-22d567854c19/lonozekizirobafuworawi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0501/1688/6678/files/audiocodes_mediant_500l_configuration_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5919/0689/files/jopebiwukobazig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8987/7405/files/40464139982.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0482/2486/2365/files/zooqle_search_engine.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0481/4752/9895/files/plan_de_negocio_de_una_panaderia_y_pasteleria.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 |
|---|---|---|---|
stream_005_off000129c0.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x129C0 | 16604 bytes |
SHA-256: 3b351330f95f8c5adbcf015c551fa3db6508ac5b9bace4366c531090947c442f |
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font_00_sfnt_off00011664.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11664 | 5740 bytes |
SHA-256: ab645a52daeb9e96ed8f7b908788ab77084f5de5bcd3f6e1f87a348f8ae94af6 |
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font_02_sfnt_off00014f68.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14F68 | 11364 bytes |
SHA-256: ceaec121c9408cb52c3cbe11df6878ed60b14f85cdebae3423533f877e49090c |
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