MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics and an ML classifier as malicious, specifically identified as a phishing trojan by ClamAV. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or SEO spam operation. The document body, though heavily obfuscated, appears to be a lure for 'weather fronts questions worksheet'. The primary attack pattern involves directing users to malicious external URLs, likely for further exploitation or phishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://kuzutuzo.ru/wix?keyword=weather+fronts+questions+worksheet PDF link annotation
- https://cdn.sqhk.co/temirikuji/zidighi/14327265436.pdfIn PDF document text
- http://kagifosotumaden.iblogger.org/10th_new_book_social_guide.pdfIn PDF document text
- http://zajowidased.iblogger.org/describe_a_person_worksheet.pdfIn PDF document text
- http://tazibesemelegi.iblogger.org/how_long_to_steam_chicken_in_aroma_rice_cooker.pdfIn PDF document text
- https://cdn.sqhk.co/pufuxogife/iiEhehj/us_civil_war_2020s.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/5c930dfd-c4a6-40d3-a5eb-984abaf7a9b7/ingersoll_rand_air_compressor_phone_number.pdfIn PDF document text
- https://78905da9-dd21-4190-abaa-c894c042e703.filesusr.com/ugd/851c7c_e8b9e31537bb468db31454f4cbeef6e7.pdf?index=trueIn PDF document text
- http://lijukogibedatu.epizy.com/435351009.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/88d3116f-bba6-471c-917a-877dffd5e182/priscilla_shirer_armor_of_god_week_1_answers.pdfIn PDF document text
- http://fufagarafe.epizy.com/health_effects_of_obesity.pdfIn PDF document text
- http://dumawesujin.epizy.com/90252091315.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f25701d7-35c0-4c79-b52d-8b52d88563e2/dawikajibavoduxaba.pdfIn PDF document text
- http://vajowevub.epizy.com/kumenasaf.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/310c0937-3bdc-47cb-850a-f28d33d17c7c/convertidor_de_gramos_a_tazas_de_azucar.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/188e16e4-9cc8-41bb-a886-50344c6282c3/xebudat.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c727e835-59bb-4829-a0a9-533f7b392a1f/68608627712.pdfIn PDF document text
- https://03ca3561-abfe-48ca-9b59-b1b2b77f8126.filesusr.com/ugd/1af49e_c60e7501cdf845cea09e7bb3acfcbaf5.pdf?index=trueIn PDF document text
- https://115777a2-cc0e-4789-9e99-30cf4bdfca1a.filesusr.com/ugd/2b3546_bc519e6358d0420692515646bccfbb2c.pdf?index=trueIn PDF document text
- https://30d6ba4c-d201-4e26-8f31-a0e059b28788.filesusr.com/ugd/f9b8bb_629d8d7b288644719e063badbb9021e5.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/2d4cb199-7534-4488-a575-6d75d8c0786e/best_way_to_study_life_sciences.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_off0000ff26.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF26 | 5120 bytes |
SHA-256: 94b09f279f49c868f37c5daaeea2780aaa9a9aa10c048cdd721cea51705f80bc |
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font_01_sfnt_off000110ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110AC | 10940 bytes |
SHA-256: c2d586f7fe87df8f2fb7241211faae02f2f33fdcb4055c236ca26317f310ce47 |
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