MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs pointing to compromised WordPress sites and disposable hosting, suggesting it functions as a link farm for phishing or malware distribution. The presence of these links and the overall structure strongly suggest an attempt to redirect users to malicious content, likely as part of a spearphishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9984
Heuristics 6
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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 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://ketchas.ru/uplcv?utm_term=is+skillshare+free+for+teachers PDF link annotation
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/1609b7e36da81b---zekip.pdfIn PDF document text
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160950929a0746---pujulujipi.pdfIn PDF document text
- https://floridainvestment.cz/files/file/21259970593.pdfIn PDF document text
- https://ehbo-oostkapelle.nl/userfiles/file/39436786117.pdfIn PDF document text
- http://scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/jinesowavipaxorak.pdfIn PDF document text
- https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/0c363cb020e2f11660923bad56389d9c/71629146165.pdfIn PDF document text
- http://lowry-averyreunion.com/clients/c/c0/c0e4e7922159a76f956c19110b7bfeb7/File/xapizizowipokininoxovadin.pdfIn PDF document text
- http://noahjohnsonsark.com/clients/e/ef/ef24418f2336b9480f3353ee42fa3f58/File/58749863613.pdfIn PDF document text
- http://ats-dz.com/userfiles/file/zisil.pdfIn PDF document text
- http://bortran.com/upload/image/file/20210701031702.pdfIn PDF document text
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b9ba106fcbe---51549891783.pdfIn PDF document text
- https://fanaf.comarticle_ressources/file/zobimaladaxof.pdfIn PDF document text
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/dc1ac593b0321b368791e2ae36f90704/samani.pdfIn PDF document text
- http://ladyqueen.it/userfiles/files/fukotokumu.pdfIn PDF document text
- https://www.bevillelecomte.com/ckfinder/userfiles/files/ritare.pdfIn PDF document text
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606de188905b6---gezizuzobefejafajo.pdfIn PDF document text
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/qc6anvekie896jps2m3bvnuanc/xukivuxafogisevawijolavo.pdfIn PDF document text
- http://maxidmum.com/images/upload/fck/file/vazevikogevuwexomorix.pdfIn PDF document text
- https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/01e162e054d007708a34a0a7d5304bc1/21066382338.pdfIn PDF document text
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/1608082422fd43---26389540441.pdfIn PDF document text
- https://cbconsulting112.ca/userfiles/files/xagikikowa.pdfIn PDF document text
- http://azbuka-d.ru/ckfinder/userfiles/files/72436331109.pdfIn PDF document text
- http://naucseto.cz/storage/damonozedogogusanebemamod.pdfIn PDF document text
- http://coopmong.com/ckupload/files/nazusuwidudedezelezijar.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_off00013b49.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B49 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001535b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1535B | 18336 bytes |
SHA-256: 1ecfbce590833e29adedd1107685510cf243b4803b15ea09064536078d437c01 |
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font_02_sfnt_off00018367.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18367 | 10372 bytes |
SHA-256: 8ca98a442bfb513ad95b567eafa99ba46fae836e2af2eefa0dc1c8252a14b7ba |
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