MALICIOUS
236
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains a significant number of external links, many pointing to SEO-optimized PDF files, suggesting a link farm designed to lure users. The presence of a URL with a UTM parameter and the 'free-download phishing' heuristic indicate a phishing attempt. ClamAV detection and ML classification confirm the malicious nature, likely as a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://maypoin.ru/123?utm_term=acdsee+pro+4+free PDF link annotation
- http://kojijeku.mygamesonline.org/lufenafawagoluwalavirevub.pdfIn PDF document text
- http://xasumemazekejo.scienceontheweb.net/3999509228.pdfIn PDF document text
- http://tajuliwelofiti.medianewsonline.com/casio_mtg_900_review.pdfIn PDF document text
- http://modebedunizux.iblogger.org/weekly_master_production_schedule.pdfIn PDF document text
- http://xagugudel.sportsontheweb.net/narrative_of_the_life_of_frederick_douglass_chapter_x_summary.pdfIn PDF document text
- http://tuxosuzarug.iblogger.org/88477716898.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://sefeluxezilire.epizy.com/luxaripekazabatasebur.pdfIn PDF document text
- https://f84ffea9-2755-49c2-9cb5-47ca8b55fe65.filesusr.com/ugd/0adedf_f019a4e5718d45c39e2cd59be6004a6f.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/sisaxu/bootstrap_form_horizontal_and_vertical.pdfIn PDF document text
- https://s3.amazonaws.com/tujeviwakirawu/armourer_full_form.pdfIn PDF document text
- https://s3.amazonaws.com/xisefowu/kuvabetarobura.pdfIn PDF document text
- https://s3.amazonaws.com/jenagubadopi/kixobokifawewezixo.pdfIn PDF document text
- https://19f621d4-ab03-49b5-bf1d-c78de40104d4.filesusr.com/ugd/bc84a3_2d580d08e8404f19a4b77d1638541dd6.pdf?index=trueIn PDF document text
- https://d4078116-a2d5-466f-97e6-20d899f6ca30.filesusr.com/ugd/576447_b7cdecb8b3ef4c60b9baf66536e7984e.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/kozibowisenatu/why_will_my_craftsman_lawn_mower_not_start.pdfIn PDF document text
- http://punolubumima.epizy.com/hello_neighbor_mod_apk_2019.pdfIn PDF document text
- https://s3.amazonaws.com/sinamozagemoger/22142125561.pdfIn PDF document text
- http://lixutepojux.rf.gd/autodesk_sketchbook_windows_7.pdfIn PDF document text
- http://rewoponoxeki.rf.gd/42397819516.pdfIn PDF document text
- http://suzufupunode.rf.gd/61916621959.pdfIn PDF document text
- https://s3.amazonaws.com/nitajosasa/kusefibuxodikivud.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_off0000e61d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE61D | 4984 bytes |
SHA-256: adff7d48189b740f29b619a71c1f3cee040429803610f2a350ea72c79da4d57c |
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font_01_sfnt_off0000f730.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF730 | 10796 bytes |
SHA-256: 29a4166cb4b89e48de2bbe52b3d73a7857919fb0591c6f347ef5483a2e1ef64a |
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