MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of external URIs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to distribute malicious files. The ML classifier strongly indicated maliciousness, and the heuristic firings confirm the presence of a link farm and external URIs within the PDF. No scripts were extracted, but the structure and heuristics point to a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9967
Heuristics 5
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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://philabc.ru/uplcv?utm_term=warhammer+quest+rules+pdf PDF link annotation
- http://cesarrodarte.com/userfiles/file/meduvexonaxomubikeket.pdfIn PDF document text
- http://kpotplace.com/uploads/files/zalidekusapugazipowaval.pdfIn PDF document text
- http://whatdwellswithin.com/file/68308148167.pdfIn PDF document text
- https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/5b396361217e14cbbf3d7284fab59f84/walinisomuremefexuvezemex.pdfIn PDF document text
- http://op-gold.com/ck_image/files/gevewelidoxodajel.pdfIn PDF document text
- https://tumujerrusa.com/userfiles/kikobapolozijir.pdfIn PDF document text
- http://www.haztartasigepszakuzlet.hu/pics/file/36313544783.pdfIn PDF document text
- https://ocw.tw/uploads/files/renukinuvarotetapofisol.pdfIn PDF document text
- https://fatheragneliti.com/wp-content/plugins/formcraft/file-upload/server/content/files/161367196c7416---69997536586.pdfIn PDF document text
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613041afb723e---73524445802.pdfIn PDF document text
- http://www.colormotion.cz/UserFiles/file/rutanerexu.pdfIn PDF document text
- http://99hospitalitygroup.com/ckfinder/userfiles/files/59584221943.pdfIn PDF document text
- https://sikdercollegeofpharmacy.com/scp/ckfinder/uploads/userfiles/files/vikudevajukibaget.pdfIn PDF document text
- http://neodermclinic.com/file_media/file_image/file/namogewikaw.pdfIn PDF document text
- http://lynxitservices.com/ckfinder/userfiles/files/50899668460.pdfIn PDF document text
- http://ashioke.com/images/library/File/82817128720.pdfIn PDF document text
- http://evrokomplekt.ru/userfiles/file/71765518239.pdfIn PDF document text
- https://arichaindia.com/userfiles/file/sexawukupudilowapojube.pdfIn PDF document text
- http://birkhoffhi.com/userfiles/files/rulanijilekafoxukoriki.pdfIn PDF document text
- http://africareview.in/userfiles/file/pafaxafitotemopexawulexem.pdfIn PDF document text
- http://thaihotelsale.com/FileData/ckfinder/files/20210908_4B700ADEB517116F.pdfIn PDF document text
- http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134151def060---liziwimo.pdfIn PDF document text
- https://afayl.com/userfiles/file/velegevup.pdfIn PDF document text
- https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613d0c5ee20b9---vonanujenuxivutuvow.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_off00013fab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13FAB | 10688 bytes |
SHA-256: dcd00cc0a042ff09d20f6bfdb43187f67f293fff198f07fe0b3bc2a608fd0465 |
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font_01_sfnt_off000157fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x157FB | 18532 bytes |
SHA-256: 1f77b973ba58fc44b129c7d4c8e97f2fd3ee87d41402a948f608a82a0b06b5ed |
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font_02_sfnt_off00018832.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18832 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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