MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm pointing to multiple compromised websites, likely intended to trick the user into downloading a password-protected archive. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document provides password instructions, a common tactic to bypass gateway security. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9969
Heuristics 6
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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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://cructi.ru/uplcv?utm_term=on+monday+clap+your+hands PDF link annotation
- https://truongdongkinh.phapluatvietnam.com/upload/ckupload/files/sawez.pdfIn PDF document text
- https://preprodpcb.com/userfiles/files/60302700159.pdfIn PDF document text
- https://psihodesk.ro/ckfinder/userfiles/files/roxoruxetobajufiramipit.pdfIn PDF document text
- http://german-ex.com/images/blog/file/fulebapikidoduwepesi.pdfIn PDF document text
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/fbb88fba8f9969df349527d5f87b544a/76511552859.pdfIn PDF document text
- http://lamorenj.com/userfiles/files/42635467687.pdfIn PDF document text
- https://asfus.net/virgsurv/userfiles/file/65871321648.pdfIn PDF document text
- https://ip-pharma.net/data/files/gegize.pdfIn PDF document text
- https://www.verimevzabavu.cz/ckfinder/userfiles/files/11201909103.pdfIn PDF document text
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147ebdb47488---sumeditikorud.pdfIn PDF document text
- http://www.c-l-r-p.com/admin/ckfinder/userfiles/files/79301406564.pdfIn PDF document text
- https://goodluckfishing.com/ckfinder/userfiles/files/litukobesaloziladiguvepap.pdfIn PDF document text
- http://cwesp.biz/upload/file/7542910727.pdfIn PDF document text
- http://newkontakt.ru/userfiles/images/file/14354711190.pdfIn PDF document text
- https://baoholaodong24.com/userfiles/file/28479476098.pdfIn PDF document text
- https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/pkt1i50on68d7cgmtv57geq3rc/42354886219.pdfIn PDF document text
- http://trustycctv.com/ckfinder/userfiles/files/perosinirezusufawugiru.pdfIn PDF document text
- https://ontech.vn/images/ckeditor/files/17203983289.pdfIn PDF document text
- http://0985028898.kad.tw/kads/ckfinder/userfiles/files/pipojemopaxojevif.pdfIn PDF document text
- http://toyotarent.hk/FileData/ckfinder/files/20210909_9A47888B571C038A.pdfIn PDF document text
- https://www.bmo-agencement.fr/ckfinder/userfiles/files/7169797968.pdfIn PDF document text
- http://opusincertum.it/userfiles/files/xixes.pdfIn PDF document text
- https://krainaogrodow.eu/zdjecia/fck/file/91826104391.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010aa2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AA2 | 10696 bytes |
SHA-256: 371df4c99f4ec0fece74533fb9af9613a6d61b08031fec2acbb651a065aa6940 |
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font_01_sfnt_off000122fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122FA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013b0c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B0C | 20248 bytes |
SHA-256: a4133f781032ec9ba6bceb7a40f3cfe2867932ad1376b1856b822edff5c81a01 |
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