MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of external links, many pointing to disposable hosting, suggesting a link farm or phishing attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to 'biology lab report format' to drive traffic to the malicious URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://gimoguvi.ru/strik?utm_term=biology+lab+report+format PDF link annotation
- https://static.s123-cdn-static.com/uploads/4372735/normal_5fdcb63207d80.pdfIn PDF document text
- http://gayerkan.com/85609100192o4qgt.pdfIn PDF document text
- https://widufosonetorif.weebly.com/uploads/1/3/4/5/134598319/disimujelobef.pdfIn PDF document text
- https://bakofegep.weebly.com/uploads/1/3/1/3/131382808/pasejebofaxixibaxiri.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417422/normal_601d297e66954.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4443804/normal_606a7934469ce.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4450747/normal_5fe25e06c9867.pdfIn PDF document text
- http://sportplays.ru/55645040373yt6an.pdfIn PDF document text
- https://biwasigefo.weebly.com/uploads/1/3/1/3/131398444/6decae5978a8f.pdfIn PDF document text
- https://pimidunobesuxig.weebly.com/uploads/1/3/0/9/130970022/9dbd687499cb0.pdfIn PDF document text
- https://zofekumu.weebly.com/uploads/1/3/4/7/134741387/f59dc3.pdfIn PDF document text
- https://waperaterorug.weebly.com/uploads/1/3/0/9/130969933/gokekaza.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4477167/normal_5ff56a02251d5.pdfIn PDF document text
- https://silifasakesi.weebly.com/uploads/1/3/4/5/134510621/puluvalebit.pdfIn PDF document text
- https://ruwezowoja.weebly.com/uploads/1/3/0/7/130776808/fexikejum-zarijixezob-folezoz.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/128544c2-ed7f-4c81-bac3-42975f875c4a/employee_self_evaluation_sample_essay.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bad4bc8c-e234-4529-97b8-5b4c2415be27/rhetorical_devices_in_speeches_list.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6d203784-2ac8-4e52-80c2-736c480523f1/esv_study_bible_natural_leather.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bba58ea0-8699-441e-a2a6-54fd219d6bb3/53561215618.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/85056f15-aaac-49ed-9e13-9fde361b6f61/veludulijumux.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1166301b-4893-4109-ac45-b168247654de/63543194218.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/064de995-d9ce-4ac4-891a-defecc984732/17555040359.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_off0001026c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1026C | 5016 bytes |
SHA-256: 2f3ba0642a151da6ce3f8a35a93fa5fa06a963244d0201483fb3cf12b015a863 |
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font_01_sfnt_off00011381.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11381 | 11228 bytes |
SHA-256: 50c603f9f8ea694108d9b14a96d5217db778d6c9da91f1637114cd26596e6dfe |
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font_02_sfnt_off00013966.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13966 | 4324 bytes |
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
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