MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and a machine learning classifier. It contains numerous links, many pointing to compromised WordPress upload directories, suggesting an attempt to host and distribute further malicious content. The presence of these links indicates a likely phishing or malware distribution campaign, potentially using a spearphishing attachment vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9946
Heuristics 7
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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 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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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://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160af58416f3d7---mijemupiwumotenukedugo.pdf
- https://skazkavdom.com/wp-content/plugins/super-forms/uploads/php/files/aa4f4fb9b1164a383b7395702556a6f6/50410486157.pdf
- https://diedacorporation.net/freesiafiles/file/fanutimoxedusufodor.pdf
- http://auapp.ch/userfiles/files/sugumanirarowegefogalagus.pdf
- https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160730fea56295---mitagodofukologunej.pdf
- https://investainternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cc522a1629---xatifuwubafizegumetufanum.pdf
- https://lightspec.ca/wp-content/plugins/super-forms/uploads/php/files/ca8a6d36026cde0b14bd9c8ebcc283f0/dininugelijinesakiz.pdf
- https://arichaindia.com/userfiles/file/roraxedikudenebawi.pdf
- http://bigxra.com/uploadfile/file/2021060216094073499.pdf
- https://selispin.com/calisma2/files/uploads/mizoza.pdf
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608b742b488a0---lorerijadedugodeg.pdf
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/1609f664aaef08---pilerofipij.pdf
- https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607d2a9180961---58251244042.pdf
- https://ahreco.com/uploads/news_file/56886756239.pdf
- http://sity-luxe.ru/userfiles/file/vojujifufo.pdf
- https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/e3533807860841d22f1120273f0b16a1/90142549921.pdf
- http://studiogallerani.it/userfiles/files/79523868017.pdf
- https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/d4e6874ce993589bf6295e6ba52bcb69/67442552601.pdf
- http://developmentassociationofnagaland.org/nbloom/fckuploads/file/65826842476.pdf
- http://villa-carlshorst.de/sites/default/files/file/rulajufudiwije.pdf
- https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/57daf9d8386aa84ea2af8d882977f653/79607103443.pdf
- http://omonetach.pl/foto/ilustracje/file/66704673431.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=ltr+to+gallon
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e8fe.bin1cfb00680a8a18ef5d5af493cc5b57cfe410abeba37087ee2ecd799c98b61e68 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8FE | 16168 bytes |
font_01_sfnt_off0000fe9a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE9A | 16792 bytes |
font_02_sfnt_off000116b0.bin7befcbfd54d3536f2407e16fd48637c955937564aa7d7095698e42ebee0aeb57 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116B0 | 9848 bytes |
font_03_sfnt_off00012c6e.bin05723b9a01ab55038f842b405cb9e723e78564dfe7af4c46a8e78420cb883276 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C6E | 17640 bytes |
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