MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan payload. It contains numerous links, many hosted on compromised WordPress sites or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and link farm heuristics strongly points towards a phishing or credential harvesting attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 6
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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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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://adacu.org/userfiles/file/20210614021004.pdf In PDF document text
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607cf66cdd286---11714133073.pdfIn PDF document text
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/ii5ksmquu5sfpju860mr5eqbvq/lilexafabebapoxirode.pdfIn PDF document text
- http://auto-spec.ca/fck/file/79427846391.pdfIn PDF document text
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/160946974eea54---55765586095.pdfIn PDF document text
- https://lightspec.com/wp-content/plugins/super-forms/uploads/php/files/aef0bdb40563d4889a6e5ad1cb2276b1/mojupef.pdfIn PDF document text
- https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/f5c98b9f67e4eb71d6876bc2770be0f0/taxitazuso.pdfIn PDF document text
- https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/hopipconr5s0g0qqquppo67pi4/6838128976.pdfIn PDF document text
- http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/9f6a2f341d069cfa9b69d6066a2528bc/28752193599.pdfIn PDF document text
- http://nessium.net/userfiles/file/54672577433.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608d0df0c32dc---46933377017.pdfIn PDF document text
- https://wpsqld.com.au/wp-content/plugins/super-forms/uploads/php/files/eef02accac14f1ad406af0926591d944/55202704843.pdfIn PDF document text
- http://tavernadelsnoguers.com/wp-content/plugins/super-forms/uploads/php/files/b58006b4aba31f4617106e4cc0b18ca3/11299619266.pdfIn PDF document text
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/gbnhc1942ifiiskaihuampj655/31160639137.pdfIn PDF document text
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160de70a56d63b---pigenerudanimanivetefu.pdfIn PDF document text
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b42fe8a5273---vuwufumu.pdfIn PDF document text
- https://kitapkapla.com/upload/ckfinder/files/jajevosu.pdfIn PDF document text
- http://www.lebedosapartotel.com/data/yukle/files/lozawomelefuzo.pdfIn PDF document text
- https://bikinibody.be/wp-content/plugins/super-forms/uploads/php/files/cesqfrg7ln2pdg4gkt4k4vcgcb/mavuxewibokelivu.pdfIn PDF document text
- https://aneri12.eu/res/file/dofigidanogimogobipojuk.pdfIn PDF document text
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb480e1d89c---82906208223.pdfIn PDF document text
- http://55pluscommunityspecialist.com/userfiles/files/vanoneduribebilakolinu.pdfIn PDF document text
- https://geneolock.com/locktactyuma/userfiles/file/venojibutimuvevex.pdfIn PDF document text
- http://www.vandiestbrandstoffen.be/uploads/files/moboluxireduvibefezem.pdfIn PDF document text
- http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083a65c280ae---naletotupazusavubatarobij.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=curling+straight+hair+guysPDF link annotation
- 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_off0000f021.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF021 | 16368 bytes |
SHA-256: 70da0b849cd5ca0d911b6047871607d0482e1fe50a6324680cab12c51c6ee076 |
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font_01_sfnt_off00011a74.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A74 | 10380 bytes |
SHA-256: d8914ab1e990043854fefbc669a5db8411db1775fdccfbe763063c26fb71bf6e |
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font_02_sfnt_off000131d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131D9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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