MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The presence of a link farm and a redirector URL suggests an attempt to distribute further malicious content or conduct phishing. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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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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External URI info PDF_URIPDF contains an external URL action
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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://trafftec.ru/aws?utm_term=doi+inthanon+nature+trail+guide PDF link annotation
- https://cdn-cms.f-static.net/uploads/4383165/normal_5f8e994943df4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377697/normal_5f8a4069b0ed7.pdfIn PDF document text
- https://mibuvenatevuwo.weebly.com/uploads/1/3/4/6/134607329/nizila.pdfIn PDF document text
- https://koxoganonigowup.weebly.com/uploads/1/3/1/4/131408343/noxitogixuxinopinop.pdfIn PDF document text
- https://lotagixowila.weebly.com/uploads/1/3/1/1/131164100/mopatubiluzaxut_kotakaj.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4382003/normal_5f8c7ce638f7d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4444374/normal_5fbaa6463c312.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381532/normal_5f91c5acb2ae8.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://s3.amazonaws.com/susopuzupure/tazud.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ed570894-1c75-4859-9e31-dc1b6b74bacb/swing_set_plans_free.pdfIn PDF document text
- https://s3.amazonaws.com/tutasujal/83453951466.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bf5bfd83-4864-41f2-b5bb-1e14be84d8fc/sparknotes_a_child_called_it.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/db48c65d-99ca-485f-bf60-06dfed440aa5/how_to_play_ro_ghoul.pdfIn PDF document text
- https://s3.amazonaws.com/ruzumeb/belmont_ma_middle_school_hours.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3d383cc0-a4fb-4c84-a1c9-f9502c998362/sivulejutegikegola.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_off0000d0a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0A5 | 4788 bytes |
SHA-256: 24066523cb5db0d643fc1f20af586ca859ef4fee5473b848169f25021f33cf99 |
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font_01_sfnt_off0000e0dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0DC | 10988 bytes |
SHA-256: 14f5d517588ac064325a427ee7aa106631d703a56cf70bf1fdeae294e5051216 |
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font_02_sfnt_off0001067d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1067D | 16124 bytes |
SHA-256: 8526dfdaf9b8d62c51faf03373666e2c64285d8597a587e409a881ae6feb351c |
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font_03_sfnt_off00011b5c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B5C | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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