MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by multiple heuristics and a machine learning classifier, with ClamAV detecting it as Pdf.Phishing.Trojan. The primary function appears to be a link farm, containing numerous links to external PDF files, many hosted on disposable domains. One critical heuristic specifically flagged it as a PDF link farm with a high number of external links, and another identified a link to known malicious redirector infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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://crophysi.ru/award?keyword=un+merveilleux+malheur+boris+cyrulnik+pdf In PDF document text
- http://jixaravaxagisuf.22web.org/desapebigimemiwupilogute.pdfIn PDF document text
- https://cdn.sqhk.co/zalenemu/dqoXC0A/lupedavodixijinaxularep.pdfIn PDF document text
- https://cdn.sqhk.co/pozedezupase/hjhghcq/promised_land_state_park_fishing.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384301/normal_600a0d65a3412.pdfIn PDF document text
- http://zefunafujazi.22web.org/net_framework_free_softonic.pdfIn PDF document text
- https://cdn.sqhk.co/kapidibewomu/jdja2s6/download_fruit_nibblers_mod_apk.pdfIn 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/fdd862f0-61e9-400a-a303-923b34d9703d/little_red_riding_hood_original_story.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1e9ced32-cf5e-4b49-b305-2063252c9e67/bhagavad_gita_chapter_2_chinmaya_mission.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9020bfb0-97ca-44ed-a391-be008ee51b31/casio_fx-991es_plus_scientific_calculator_for_pc.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ee516c1e-5fd2-409a-8b04-982fde6f1e38/rinawazerovewazusixunidu.pdfIn PDF document text
- http://genorokotejivo.rf.gd/html_to_angular_5.pdfIn PDF document text
- https://f3b86e06-b3aa-4ee1-82f7-79049f3379a8.filesusr.com/ugd/0c4fd2_d8a2d88abffa4754a460e281fa048262.pdf?index=trueIn PDF document text
- https://90ff81fc-98d9-4e53-96a3-aaa5c1c2042e.filesusr.com/ugd/bb5aff_2e38f1499b1f46e8959961d70301f6e6.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/d0287e54-a06d-400f-9f77-ede946ae2987/5_minute_bot_instructions_ev3.pdfIn PDF document text
- https://d0fd53c2-66a5-49f7-a942-a4bfc50892a3.filesusr.com/ugd/11baf9_ce1d1f7d253d400c8a3de0267045f113.pdf?index=trueIn PDF document text
- http://gugaginewus.rf.gd/nofijonesilamasariwudaxet.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_off0000e1b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1B0 | 5820 bytes |
SHA-256: 27b9c36d7d2fd097122e5f779230c6608ed07de94c503c5b98005be8234c1c96 |
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font_01_sfnt_off0000f558.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF558 | 12484 bytes |
SHA-256: 0039d9107702ea03f8af201290129ee2479436c3067099332a567f22008fbc1c |
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