MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was identified as malicious by multiple heuristics, including a critical alert for linking to known malicious redirector infrastructure and a large number of external PDF links indicative of a link farm. The ML classifier also strongly flagged this sample. The embedded URLs suggest a phishing or redirection scheme, likely aiming to lead users to harmful content.
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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://crophysi.ru/aws?utm_term=defiant+castle+keypad+deadbolt+manual In PDF document text
- http://about-central.com/27979746511m9hn1.pdfIn PDF document text
- https://cdn.sqhk.co/puvelumilum/cd8dnjg/lematupowaseravez.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4367279/normal_5ffcb06d01ee4.pdfIn PDF document text
- https://cdn.sqhk.co/velijituma/hfcchi9/73450916105.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4453889/normal_60261a63a9d3a.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4496582/normal_5fec95a95563e.pdfIn PDF document text
- http://freshnatur.fun/kukujetum3zmpv.pdfIn PDF document text
- http://electrumwallet.buzz/arihant_electrician_theory_book_in_hindi8jirh.pdfIn PDF document text
- https://cdn.sqhk.co/muxizupemof/7tgdDij/68392148053.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4414357/normal_5fd8ed0024403.pdfIn PDF document text
- https://cdn.sqhk.co/jifibipex/jghF8Eo/coupons_com_earn_cash_back_after_purchase.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4480585/normal_5fde744677442.pdfIn PDF document text
- https://cdn.sqhk.co/letinumi/7ApHXtI/mod__minecraft_1._12_2_morph.pdfIn PDF document text
- http://korecos.ru/pikaxazaropovikupebulijwg0p7.pdfIn PDF document text
- https://cdn.sqhk.co/bulixanejad/APQhh9E/41957756021.pdfIn PDF document text
- https://cdn.sqhk.co/rijomawonuj/Gihc5jc/download_game_zombie_age_3_mod_apk_terbaru.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/wutogugej/57184043911.pdfIn PDF document text
- https://aa6d2f86-95e2-42cc-897e-6bbd71c3a116.filesusr.com/ugd/78daac_e62e8c4860b54a43a2ba17b384fcddf2.pdf?index=trueIn PDF document text
- https://54179944-c6a3-49b3-9462-5d1939b6aff2.filesusr.com/ugd/49f5ef_92eaf1453856490b93ac6522ca4bbade.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/tafogusegabomu/how_do_i_contact_fedex_customer_service.pdfIn PDF document text
- https://e809654a-a95b-4dbc-a338-24085255a2f8.filesusr.com/ugd/1b6cec_3e3cec24e6334a8d8da8b0667c601e43.pdf?index=trueIn PDF document text
- https://e8dc5420-792a-4861-90db-09cfc8d8a7d1.filesusr.com/ugd/1378f5_3d2f09d712c443d6bec9cb7afeb5b6f4.pdf?index=trueIn PDF document text
- https://24a70dd4-b549-4b9e-9c0a-6eea45ab85ad.filesusr.com/ugd/ab0c63_21e0b65085c44745832b6f10d039d376.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_off0000fdce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDCE | 5508 bytes |
SHA-256: 9a998c3f8dcb3d88c75be70f1021a656f226a9112c061f1a410f7e8362d53a65 |
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font_01_sfnt_off00011093.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11093 | 13716 bytes |
SHA-256: acca4a1bc83bc1fcec745718aff2d92afb3c00b5c6ccaaeb0046f131a61e79da |
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