MALICIOUS
226
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous external links, many pointing to disposable domains and CDNs, indicating a link farm designed to redirect users. Heuristics like PDF_RANDOM_URL_LINK and PDF_SEO_LINK_FARM strongly suggest a malicious intent to host or link to malicious content. The ML classifier and ClamAV detection further confirm its malicious nature, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 7
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://jacksth.ru/strik?utm_term=old+yeller+book+plot+summary PDF link annotation
- https://cdn.sqhk.co/pesenexur/bOqhh59/redekepezivufotases.pdfIn PDF document text
- http://strgb2.ru/cours_arcgis_10._52xu2h.pdfIn PDF document text
- https://cdn.sqhk.co/guvevifowo/chdaEGe/62539081163.pdfIn PDF document text
- https://cdn.sqhk.co/begokaxawip/hgdu59d/mad_dex_2_mod_apk_download.pdfIn PDF document text
- https://refapezi.weebly.com/uploads/1/3/4/9/134904673/a3170dc390.pdfIn PDF document text
- http://hermidkovo.info/73640713502brh7u.pdfIn PDF document text
- http://privateguardingserviceagainstdanger.site/naxugerawekenejemise5a94o.pdfIn PDF document text
- https://cdn.sqhk.co/zenekukera/G4jbsOW/by_the_sea_movie_explained.pdfIn PDF document text
- https://cdn.sqhk.co/rupizabiweze/5Vifjat/bengal_tiger_video_songs_com.pdfIn PDF document text
- https://pozajuraxox.weebly.com/uploads/1/3/4/5/134591712/posukebapusuk.pdfIn PDF document text
- https://zoladawa.weebly.com/uploads/1/3/4/1/134108991/besuxosejedot.pdfIn PDF document text
- http://vk-settings-change.online/24958100003gls40.pdfIn PDF document text
- http://parkingtest.xyz/381727426814ijsg.pdfIn PDF document text
- https://ratopavitakam.weebly.com/uploads/1/3/4/4/134460251/a001bf1b0df.pdfIn PDF document text
- http://shortsomfj.space/how_to_thread_a_brother_sewing_machine_lx-3125xgrdh.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://nojosatu.epizy.com/79454413891.pdfIn PDF document text
- http://duwimufowewis.epizy.com/66291765669.pdfIn PDF document text
- http://veroxeron.epizy.com/why_wont_my_panasonic_smart_tv_connect_to_netflix.pdfIn PDF document text
- http://besoxumewube.epizy.com/raliwixozu.pdfIn PDF document text
- http://nivitigu.epizy.com/callus_formation_in_bone_healing.pdfIn PDF document text
- http://regojefef.epizy.com/64764043914.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_off0000f4be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4BE | 5440 bytes |
SHA-256: aad55b708555d8d29dcd0174ded24c4c9aff7ff6511f15f134c9a4aa704fec4f |
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font_01_sfnt_off00010721.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10721 | 11856 bytes |
SHA-256: 329977247a38511bcaa2558ff6316693e9f06af93da87bd446160a7d9d6860d6 |
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