MALICIOUS
226
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
T1059.007 JavaScript
This PDF document contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to direct users to malicious content. The document also contains an instruction to disable security software, which is a strong indicator of malicious intent. The ClamAV detection and ML classifier further support its classification as malicious, likely a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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Security software disable instruction high SE_SECURITY_BYPASSDocument instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
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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://midufefew.ru/123?utm_term=fingerprint+lock+app++com PDF link annotation
- https://ruwixotuso.weebly.com/uploads/1/3/4/1/134131383/bazoxevorumeda.pdfIn PDF document text
- https://rarejiwu.weebly.com/uploads/1/3/1/6/131606055/momavana-wemelosinuj-gobuziwilef.pdfIn PDF document text
- https://jupedozezuwobig.weebly.com/uploads/1/3/4/0/134040413/noviwami_kedemabepojuv.pdfIn PDF document text
- https://mejiwixibunoxu.weebly.com/uploads/1/3/4/4/134402053/5a39928304855c.pdfIn PDF document text
- https://rapozudomemixu.weebly.com/uploads/1/3/5/3/135330029/lafuv_zemes_degek.pdfIn PDF document text
- https://vakilonote.weebly.com/uploads/1/3/1/3/131382032/felek.pdfIn PDF document text
- http://rupazaduxil.mywebcommunity.org/physical_science_grade_11_exam_papers_and_memos_2020.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/4546db65-6a9e-487c-aa2f-c24cea12bbe4/when_to_start_applying_for_air_force_academy.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5680bf63-f0d4-4dbc-8eaf-7885ba2f2557/best_mifi_in_nigeria_2020.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8ac77910-d655-42c3-b0e9-42725e1a2ce1/91153223386.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/22ab27a8-3bc6-4376-8d75-ae261612b6fa/78690907553.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8fab8730-f9ac-484d-a1b7-b2f9418b63a6/jegivamulozu.pdfIn PDF document text
- http://pulutugorivexek.atwebpages.com/the_expanse_season_4_episode_5_synopsis.pdfIn PDF document text
- http://duwemanuwixam.atwebpages.com/46142999802.pdfIn PDF document text
- https://s3.amazonaws.com/regegozumekoza/40448720152.pdfIn PDF document text
- https://s3.amazonaws.com/tajimipojimo/tp-link_av200_nano_powerline_adapter_manual.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e21cbe1e-0388-49a5-8a40-e889d85b9c13/kiwemigezidur.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/be6e62fd-9c23-4dcb-bf7d-78a13bdefb42/bijefemexetu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2a216a50-b71c-4461-9390-fffe26cfd8da/how_to_reset_a_viper_remote.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_off000100cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100CD | 5096 bytes |
SHA-256: c82b603ee51002b5f5e5ed3f240eed5c69aead5893485e98ef6077bdca1d870c |
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font_01_sfnt_off00011219.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11219 | 11568 bytes |
SHA-256: f184c5961e955117348e45303d3714ac0c90982f2a3278edc57eb0c0d72b646e |
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