MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to disposable hosting and are likely part of a link farm designed to direct users to malicious websites. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' specifically identifies a link to 'yafferge.ru' as a known malicious redirector. The ML classifier and ClamAV also strongly indicate maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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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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://yafferge.ru/strik?utm_term=onkyo+tx-sr608+fernbedienung+problem In PDF document text
- https://baseparefawufif.weebly.com/uploads/1/3/1/4/131453046/lasizofoworilutez.pdfIn PDF document text
- https://rajexomogalifi.weebly.com/uploads/1/3/4/8/134891851/kowamukeki.pdfIn PDF document text
- https://baxemazone.weebly.com/uploads/1/3/0/7/130739829/2213096.pdfIn PDF document text
- https://cdn.sqhk.co/fexivijemozu/IhjcBgg/keynote_templates_envato.pdfIn PDF document text
- https://cdn.sqhk.co/parikozug/bhhZahi/betavesafinosav.pdfIn PDF document text
- https://cdn.sqhk.co/satukevaguka/iVdL1ig/personal_swot_analysis_examples_of_threats.pdfIn PDF document text
- https://cdn.sqhk.co/xudapurofoz/xyjgge4/roman_adventures_britons_season_1_caches_6-_10.pdfIn PDF document text
- https://cdn.sqhk.co/guregame/Glclidv/2_player_murder_mystery_game_ps4.pdfIn PDF document text
- https://cdn.sqhk.co/gilubibawi/jghiG0R/jubakexobarix.pdfIn PDF document text
- https://vugovarekuluf.weebly.com/uploads/1/3/1/6/131607096/4807252.pdfIn PDF document text
- https://gojesewemuvi.weebly.com/uploads/1/3/2/6/132681304/sikakemavuw.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://uploads.strikinglycdn.com/files/5fbb427a-dcfb-48aa-9032-0f90c1db7b44/how_to_turn_on_onn_walkie_talkie.pdfIn PDF document text
- https://s3.amazonaws.com/vuxalirudidel/how_to_heal_chilblains.pdfIn PDF document text
- https://s3.amazonaws.com/xovekolamoxe/duzigekekuboloset.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4a1318fa-5d26-47e8-8cbc-8914b82b8ab1/40403110825.pdfIn PDF document text
- https://s3.amazonaws.com/varoximu/programming_for_beginners_python.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1608d97b-c9bd-4fc1-8639-626828bdb8c8/20552259898.pdfIn PDF document text
- https://s3.amazonaws.com/fizufapu/rujomumesatofaputa.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/92a74f99-7414-46c4-a6b9-3c90d4bec16c/whiskey_words_and_a_shovel_book_set.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7fa66e7f-8d68-4666-af6c-38d12a89d117/technivorm_moccamaster_79212_kbts_coffee_brewer.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b9c2540b-66da-4f1a-b807-2b1bfcb8ca0b/xakefutopugijamasafaw.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e5768888-8d57-40b3-957a-5eee94eeaa70/never_eat_alone_expanded_and_updated.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_off00011ac5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AC5 | 5956 bytes |
SHA-256: 2a4109e1537bd2f4f628d207624bc58693950f3a091f0a1d5527b94390a06b34 |
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font_01_sfnt_off00012eff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EFF | 11868 bytes |
SHA-256: 3014a8f90550297010504d523257e20895a95c0594ebcdfb4ac3d66d67830381 |
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font_02_sfnt_off00015687.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15687 | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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