MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics as a link farm containing numerous external PDF links, with a high ML classifier score and ClamAV detection indicating malicious intent. The document body is heavily obfuscated but the presence of external links suggests a phishing or SEO manipulation tactic. The primary attack pattern involves directing users to a large number of potentially malicious or misleading external PDF resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://static.s123-cdn-static.com/uploads/4469374/normal_5ffd6d0e97e4d.pdf In PDF document text
- https://cdn-cms.f-static.net/uploads/4449766/normal_6048eca72b1b0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4470220/normal_5fd68a6a7a87e.pdfIn PDF document text
- http://samafutanub.mypressonline.com/18048827596.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4459481/normal_5fe3bcac944ac.pdfIn PDF document text
- http://tejowigasinafu.getenjoyment.net/linear_inequalities_worksheet_answers.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4377909/normal_5ffe9417ba21c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454673/normal_601734ca9dd75.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4426073/normal_5fd09e998142e.pdfIn PDF document text
- http://ziwixan.iblogger.org/silutokoneruwag.pdfIn PDF document text
- http://logowiwubapokar.iblogger.org/garden_and_gun_shopping_guide.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387562/normal_60469bfe1e657.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421776/normal_60475565c0bae.pdfIn PDF document text
- http://xivasupati.iblogger.org/ruzezojurazilawa.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/wb/ENAH/~3/KjdSuPfhPRY/wb?keyword=effective%20telephone%20communication%20skills%20pptPDF link annotation
- https://9ffa65b4-b95e-481c-977d-2cf6acaa57d7.filesusr.com/ugd/f68d46_9d15e3da54e847aca07935954fbd68c2.pdf?index=trueIn PDF document text
- https://eae964be-cf9f-49a8-9b2f-00020d526acb.filesusr.com/ugd/e932cf_3a237cba1b824d319f92212bdd5dd76c.pdf?index=trueIn PDF document text
- https://a8a57b57-a5e9-4b5c-b824-02731ce3a1bd.filesusr.com/ugd/cfa667_0753543cabbe430583841f91a2e36bf8.pdf?index=trueIn PDF document text
- http://wugorasu.rf.gd/tizutadujajuzebigu.pdfIn PDF document text
- http://jegowijuvu.epizy.com/aaromale_kadhal_audio_songs_ing.pdfIn PDF document text
- http://popofisofol.myartsonline.com/how_to_find_the_interior_angle_measure_of_a_regular_polygon.pdfIn PDF document text
- http://wojobawezelo.rf.gd/biruveram.pdfIn PDF document text
- https://e26976e3-f089-44cc-a2a6-54bcc6cae308.filesusr.com/ugd/0df15e_497d5f1b9c7f40bba68f479ead4dfb1a.pdf?index=trueIn 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_off00010117.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10117 | 5240 bytes |
SHA-256: e6e248661df011ee410bcecb6de8b1077751ae6484c3fdad055b4fa282f61c23 |
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font_01_sfnt_off000112d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112D2 | 10808 bytes |
SHA-256: 8698f08689dafd9dc5e32af910e2eee178273bd2ec2957de7f08b6c18d41bac7 |
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