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://jacksth.ru/strik?utm_term=paragraph+writing+worksheets+for+grade+6 PDF link annotation
- https://piwunosorelid.weebly.com/uploads/1/3/4/5/134590209/jitewugufaxi_roxozoditano_mubosakiw.pdfIn PDF document text
- https://static.s123-cdn-static-d.com/uploads/4379613/normal_60afecb500d89.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418583/normal_601dd474e9419.pdfIn PDF document text
- https://static.s123-cdn-static-d.com/uploads/4373788/normal_60affc918d4f8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4473638/normal_606084d8d64a8.pdfIn PDF document text
- https://xukutejupu.weebly.com/uploads/1/3/4/4/134487517/7659255.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4404313/normal_6027be2039646.pdfIn PDF document text
- https://pevetogebika.weebly.com/uploads/1/3/5/3/135335423/lugulidesuv.pdfIn PDF document text
- https://nawexolaka.weebly.com/uploads/1/3/4/7/134704757/fonufunujujugef.pdfIn PDF document text
- https://tisogile.weebly.com/uploads/1/3/4/7/134728595/4c343d2258.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4406777/normal_606e7adb9b6fe.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/0ddf5d21-d819-4efa-85a8-12e25035ea7e/harlem_by_langston_hughes_theme.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0e1ce37c-3225-4860-a720-ff407a9fff64/edhesive_answer_key_unit_7.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/05d4ad7d-4db3-4d30-baab-b861de61936a/acer_aspire_one_cloudbook_11_ao1-131-c046.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/25e8d7b2-9e5e-4f84-b39c-143a6e671c88/2777588276.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2cc30485-181c-44ee-bb70-09afd75b64ac/fisawebuz.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2f46249d-d15c-4834-be16-f2120b18a4ee/perat.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f21069e9-f5ec-4512-9cec-6b9a92f903dd/modern_control_system_theory_and_application.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f5bff846-5214-458f-82b3-8abc1bcbd3e8/dizume.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/98ea14aa-fb1d-48c5-b057-5154c1847f13/48790074662.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e2b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2B9 | 5580 bytes |
SHA-256: f73eab4b86a6fad9e79c80a28ba4788e8a806938bf5ab46228cfeb4c32d6906e |
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font_01_sfnt_off0000f5c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5C6 | 11248 bytes |
SHA-256: 75dc7e7cb600ea3f6378e6a2c50600b9ae0de7abd461b47e21ced863bd60a719 |
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font_02_sfnt_off00011bdf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BDF | 16392 bytes |
SHA-256: 1a2cef344135cdcc96c5e1f54e34dedc508871894fe74269a84f378fcf36fd5f |
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