MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document is classified as malicious by ML models and ClamAV, indicating it is a phishing or trojan delivery attempt. It contains numerous embedded URLs, with a primary suspicious URL being https://jacksth.ru/123?utm_term=interpreting+graphics+worksheet+answers+biology, which is likely used to redirect the user to a malicious site. The document's structure and embedded links suggest it functions as a link farm designed to obscure the ultimate destination and evade detection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 5
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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 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/123?utm_term=interpreting+graphics+worksheet+answers+biology PDF link annotation
- https://static.s123-cdn-static.com/uploads/4422658/normal_60029de88750e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476930/normal_6015b227570f8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368479/normal_6013490439e60.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4407062/normal_5fc7611cf1adb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4471273/normal_601e80a219735.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4457281/normal_5fd670e29a4fd.pdfIn PDF document text
- http://kidufamipowanot.mywebcommunity.org/beats_by_dre_studio_2_wireless_outside_exterior_panel.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379482/normal_5fe9b8a39c4f9.pdfIn PDF document text
- http://xomunuxeju.sportsontheweb.net/the_birds_and_other_stories_daphne_du_maurier.pdfIn PDF document text
- http://tonemisi.medianewsonline.com/1994_s10_wiring_diagram.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371514/normal_6046bd3ad3c8f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4448545/normal_5fd779c69d0e0.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://656adf98-7a81-40bd-8d0f-2b9c27d09201.filesusr.com/ugd/268ab1_d8f56877b0694980aadfc716efbf71a3.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/sorapobuk/80840378844.pdfIn PDF document text
- https://s3.amazonaws.com/woneketelak/kinoromuliwexokeriteko.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d5a063e1-c91b-4897-b754-23a24b5212d3/31105957126.pdfIn PDF document text
- http://jokubamobivavum.onlinewebshop.net/mojuj.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/24ee169b-3ded-43cb-a32f-629d36356fac/nokekavababetusome.pdfIn PDF document text
- https://97a45c9e-1ab5-462a-bfe2-fded34b9a8b9.filesusr.com/ugd/b50c55_e9ca48bbc14944aaae11c6a64bcdd837.pdf?index=trueIn PDF document text
- https://d5f1d3db-1598-48d0-a061-764c190a6564.filesusr.com/ugd/866690_aaab5edefdeb456eb75936ec440da87d.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/muvemasoxaji/selememileranulosizenotu.pdfIn PDF document text
- https://s3.amazonaws.com/megelugik/memu_emulator_for_32_bit_pc.pdfIn PDF document text
- https://s3.amazonaws.com/fizaxo/jemurixevovox.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_off000124e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124E7 | 2828 bytes |
SHA-256: b7f317aa0f29cd34df008dc84d8f376d2685882a57a4a5cd0d86477d0adf885a |
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font_01_sfnt_off00012ee2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EE2 | 5532 bytes |
SHA-256: c071952e2cd827db2b2fbc0e03e685af4646c1ec31e9c015f1d27381b62f25b8 |
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font_02_sfnt_off000141c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x141C0 | 10516 bytes |
SHA-256: 9cc8e71d8f151bca00324f17fd5544b911be788d78b7668888dab2a3da47edcc |
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