MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript and numerous links to external PDF files, many hosted on compromised WordPress sites or disposable domains. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document likely instructs the user to open a password-protected archive, a common tactic to evade gateway scanning. The embedded JavaScript and the nature of the linked files suggest a downloader or phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 9
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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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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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://ifa-astrologie.de/userfiles/file/51477431999.pdf
- http://serextion2006.com/js/upload/files/37755386151.pdf
- http://dienvietbac.com/uploads/files/34520568206.pdf
- https://www.baileysmilk.com/wp-content/plugins/super-forms/uploads/php/files/dfbcdb182f131d2a018ad2377db0babc/zepowunaguleka.pdf
- https://zapcdn.space/web/img/podborky/files/4510639956.pdf
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/v13aiaqmaptmvaultt4gdohhq6/binuxitijogeb.pdf
- https://kaptenhoki.com/contents//files/vetepaweroz.pdf
- http://nemdanangpho.com/uploads/2021-08-23/images/files/48057930026.pdf
- http://solar-makernavi.com/ckfinder/userfiles/files/63665155599.pdf
- http://cuatro-pr.org/sites/default/files/file/zupatunojowategal.pdf
- http://wawabed.pl/uploads/userfiles/file/73307247365.pdf
- https://www.carrentchiengmai.com/files/78404895933.pdf
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/1607f4865cdc25---redixoviloduv.pdf
- http://nhatngungoisaoxanh.com/upload/files/zofagapumutuzevazevisa.pdf
- http://aeronautike.com/userfiles/file/72441929528.pdf
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d85a7b39431---sozodorenipudedilil.pdf
- http://matchedtubes.de/userfiles/file/jepifobikafazez.pdf
- http://solyaris.pro/admin/ckfinder/userfiles/files/bafolikajobodudigowugow.pdf
- http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c77610e2229---kodes.pdf
- https://ecodiagnost.com/ckfinder/userfiles/files/vovasudobimopexagi.pdf
- http://breakevenpoint.pl/uploads/editor/file/19259632511.pdf
- http://prograsifkalip.com/files/fisarilifebodazarega.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=ejercicios+de+coaching+personal+pdf
- 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_off0000dbc7.bincde310bb442b87529132b0e82c6c7f35596e182c4edefc4657850e341e150c6e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBC7 | 18788 bytes |
font_01_sfnt_off00010c3e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C3E | 16792 bytes |
font_02_sfnt_off00012455.bin69be974cfacc9ab04683c02b90568ae01a43d3a301ed86f9490393c8a44290b7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12455 | 10916 bytes |
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