MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document contains a large number of external links, many pointing to disposable hosting, suggesting a link farm or phishing campaign. The primary lure appears to be "Empower b1 student's book answers", directing users to a suspicious URL. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://chcial.ru/pbw?utm_term=empower+b1%252B+student%2527s+book+answers PDF link annotation
- https://cdn-cms.f-static.net/uploads/4403141/normal_602897bed8ee2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378834/normal_60197dfdc44cd.pdfIn PDF document text
- https://pusoguxararafog.weebly.com/uploads/1/3/4/5/134593470/137519d.pdfIn PDF document text
- https://tetavezodumop.weebly.com/uploads/1/3/4/6/134645623/relevefikabofe_xomuxexojotuni_tazed_karupijoz.pdfIn PDF document text
- https://wofogubegir.weebly.com/uploads/1/3/4/7/134728038/1269536.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4403119/normal_5fecaef948844.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369784/normal_6019280a8b1dc.pdfIn PDF document text
- https://fixabewol.weebly.com/uploads/1/3/4/7/134711766/kepirege.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4489722/normal_6001fe88d4845.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/66b53e74-da8f-4cc8-a17f-6904182c0dd1/how_to_assemble_a_total_gym_xls.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8fb2ffe3-6099-4676-8df5-1f4c30e8f37e/daily_schedule_template_free.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b5567fbb-8d42-4a7a-8ef7-b778b48e1cd2/67959980909.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4d7496db-12aa-4ed8-940f-2915c76cfb37/is_the_2007_volvo_xc90_a_good_car.pdfIn PDF document text
- http://xivoxibuza.pbworks.com/f/79660994824.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c7668c36-c975-4a27-9f97-cda569a3b153/58239336985.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/271788c2-2f18-4383-b2fb-e0af95d2cac5/d_link_ac3200_ultra_manual.pdfIn PDF document text
- http://fevosezew.pbworks.com/f/54419545132.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/975592b4-1c1c-4a75-a97d-11de91f4cb13/tefaweweteno.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7c189d2c-f1ad-44d5-a9af-616125bb6ffc/firefox_49_free_download_for_windows_7.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/85cb0524-34d6-4bde-abe3-3b84f48993f4/kent_hewitt_jazz_piano_free_download.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/70f1d776-c5df-49e9-8ee9-7e5c8a54ae23/how_to_get_abs_home_fitness.pdfIn PDF document text
- http://jubujefaj.pbworks.com/f/lightleap_hack_apk.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5646c5b3-e6e6-4ab0-a620-34e096636d0d/38412953258.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_off0000ca4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA4E | 5412 bytes |
SHA-256: d05a0ebeff3e4d9e2afca593fc204331650fe15bf73aec478689c57679d4eb71 |
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font_01_sfnt_off0000dcb4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCB4 | 9724 bytes |
SHA-256: 276af91168d01aad825ebedb742681429064996a01359e699c6b71ba66baa80f |
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