MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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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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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://dafemum.ru/strik?utm_term=a+is+for+activist+summary PDF link annotation
- https://cdn.sqhk.co/taxeseta/dherfDA/tps_hero_hunter_of_zombie_world_mod_apk.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381759/normal_6011066110381.pdfIn PDF document text
- https://cdn.sqhk.co/zasemewiti/8ehcdZU/80362807087.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4403119/normal_5ff4d9ee7d48c.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4420610/normal_5fc574a842bae.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://502f924d-676a-41b3-8220-87c01882f600.filesusr.com/ugd/5a20bb_70a457b1702c4b0b9908e49dbfb54ca0.pdf?index=trueIn PDF document text
- https://770ad53b-b55e-4e58-b1eb-3709f41304f7.filesusr.com/ugd/98e298_b88585e7bb2145b4954a369718f5ee85.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/suzixegazunow/66831351658.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/45d1db6a-53b6-4c3c-9634-0e2bf99e7f65/what_do_navy_officers_wear.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/32480a56-79f7-47c4-934f-195393e6d204/fujikibuxovegelog.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5c5a5e70-c483-46ae-8911-c8ee37ca04ec/julius_caesar_play.pdfIn PDF document text
- https://d115d978-d96a-40c8-9764-5d959708fc35.filesusr.com/ugd/436160_2b0e7c546cb549a4b4a885b89706b820.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/f04610b9-66e5-436c-a8d7-7cb6d231b25e/troilus_and_criseyde.pdfIn PDF document text
- https://27420876-d215-4860-9a72-f48db0d0c320.filesusr.com/ugd/4062c2_c7144282f5464cc1b6a22fa32ae0f1f2.pdf?index=trueIn PDF document text
- https://8767aa75-4bd5-48c0-94ca-24e983238001.filesusr.com/ugd/debdc1_30117d82c8e0413787a3ba4774fea5fa.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/fuzafuzeruwit/html_form_without_csrf_protection.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d2149389-94f3-4352-a8c2-a83d1989a02f/napadidiberedulabat.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/74a78ce0-0fad-4eea-aeb1-693e29504703/quadra_fire_gas_stove_manual.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000101fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101FC | 5148 bytes |
SHA-256: f378459fbe34ce2fb7e664950863835633229c9476787085e40284a5f3f925b9 |
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font_01_sfnt_off00011377.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11377 | 12436 bytes |
SHA-256: 6fbc7872e4e85cdc084c208596ba143ca95b500001fad80edc4fd5b0a0b5b556 |
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