MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm hosted on multiple disposable domains, a common tactic for distributing malware. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely instructs the user to open a password-protected archive, a method used to evade gateway scanning. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9833
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 http://dragonera.cn/admin/userfiles/file/52203553779.pdf
- http://dreamwith.gni.kr/ckupload/files/fisujapizoxupukako.pdf
- http://xaydunghoangthanh.com/img_duhoc/files/pomusiwereb.pdf
- http://shyjjc.com/v15/Upload/file/202198112243254.pdf
- http://otworz-biuro-podrozy.pl/userfiles/file/belebunozefunubitagi.pdf
- http://c2ctrading.org/cms_upload/files/35973428232.pdf
- http://bertrandetgastineaudesigners.com/userfiles/file/bogogijebulamifa.pdf
- https://immo-macedo.lu/userfiles/files/sovemufozas.pdf
- http://taikenplan.jp/ckfinder/userfiles/files/31571289338.pdf
- https://holcom-solar.com/webroot/img/files/30928446434.pdf
- http://netdepphunu.vn/images/userfiles/file/88009446681.pdf
- http://artdealer.vn/upload/fckimagesfile/0b84ec48eca8ec2ab540cfb169ae787d.pdf
- http://sportingfoundation.com/uploads/file/39912855873.pdf
- http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/42b4eaaf90d6f9ab5ed7102ec1b4e74a/filaxebaxativesexorugox.pdf
- https://www.vita-organic.eu/admin/ckfinder/userfiles/files/xoxaz.pdf
- http://healthywithhart.com/res/file/58920566714.pdf
- https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1613e0f9295a72---3967021050.pdf
- https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/7229992f3192f4071ebb6245a98cc178/49216289736.pdf
- https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/366962570ad4ccacfa7e2f3ee753d4b7/bigiwalijokinajomufajin.pdf
- http://rw-hse-businessconsulting.de/userfiles/file/korusijowibivoduxot.pdf
- http://terezmisszio.eu/files/file/demedepawuxit.pdf
- https://studybrilliant.online/app/webroot/img/userfiles/file/90708565444.pdf
- https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/06d1e4efce648d8ebce2c2e6f1e1946b/wixarosa.pdf
- http://carrasvilla.es/uploads/files/62988678269.pdf
- https://ontogepszerviz.hu/editor_up/74603368155.pdf
- http://acevina.com/webroot/img/files/dalobevilotafagitinibu.pdf
- https://unitytradefze.com/ckfinder/userfiles/files/pubesujipuvok.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=zip+opener+apk
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d785.binbec7a95ac616c43656d6204ea687549710f0196baca5aa8666369760cbe184c5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD785 | 9988 bytes |
font_01_sfnt_off0000edc0.bin655a0146b094293dc44f373f2c179217d94cb6417ce6cf70416f239c7ef932fb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDC0 | 17560 bytes |
font_02_sfnt_off00011b32.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B32 | 16792 bytes |
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