MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to disposable hosting services and are likely part of a link farm. One critical heuristic identified a link to known malicious redirector infrastructure, suggesting a phishing or malware distribution attempt. 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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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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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/strik?keyword=estatistica+exercicios+resolvidos+desvio+padr%25C3%25A3o In PDF document text
- https://ruvazokof.weebly.com/uploads/1/3/4/0/134040659/digatoxino.pdfIn PDF document text
- https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/6497588.pdfIn PDF document text
- https://wivupenoremew.weebly.com/uploads/1/3/0/7/130775018/2327421.pdfIn PDF document text
- https://xufitagetibo.weebly.com/uploads/1/3/4/4/134486135/wonifanesobape.pdfIn PDF document text
- https://papilezuserif.weebly.com/uploads/1/3/4/4/134437149/b29b5d11.pdfIn PDF document text
- https://pepuzategazeg.weebly.com/uploads/1/3/1/4/131453576/titabof-fipovupuw-dejuw-nupuwodo.pdfIn PDF document text
- https://togasiwivote.weebly.com/uploads/1/3/4/3/134370981/0302a7.pdfIn PDF document text
- https://ziripovopibew.weebly.com/uploads/1/3/0/8/130874468/novusiwimuguv_taguvepiro_fadefexanupa.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/henghuili-files/guia_aceites_esenciales.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4db3fbe1-b3b9-4970-b1df-1ba4622304ff/lajafi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6311c738-5b42-41e3-9368-00f3a521ef64/nancy_drew_captive_curse_walkthrough.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c78aec61-dc06-4ffb-9495-89cf1541e1c4/imek_mekkuin_izgi_film_izle.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0488/4080/2469/files/14663447372.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/3019/7910/files/orlando_magic_schedule.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/25521189-a635-4761-982a-0fc7f514a5ea/49048994319.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/257532b8-b6c9-4313-a9a9-0fed32a5660d/47552286073.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5d8e6b60-fa2d-4660-a7f0-f930e2c099f3/tafuni.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2e099ea3-ba7f-434c-9690-ad21a38af75c/gavemavelupotetupoju.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007ffe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7FFE | 5120 bytes |
SHA-256: bf63c4e0398938b09096f29a9a921c99de1457aa8038b9ff68bf5eb5e8fc5ce7 |
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font_01_sfnt_off00008f3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8F3F | 5472 bytes |
SHA-256: 631be066c8d1fb5dbf0f6f246b2835a459640a2bad94e6b5f4d5000993a47c02 |
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font_02_sfnt_off0000a150.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA150 | 14364 bytes |
SHA-256: a286c4d667c0faceae668b26a353a7c61e5c5b0e245a7c0473a1e736f629051a |
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font_03_sfnt_off0000cd3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD3E | 16284 bytes |
SHA-256: b1854975f45d55549de6574633e4fc26ae3675c7dcc368773ea22aa55ad67622 |
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