MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable domains, indicating a link farm designed to redirect users. The ML classifier strongly flagged this PDF as malicious, and the presence of link farms on potentially compromised CMS uploads suggests a malicious intent to distribute further threats or phish users. No scripts were extracted, but the primary attack vector appears to be user interaction with the malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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://wastran.ru/uplcv?utm_term=without+you+my+friend PDF link annotation
- http://greatnice.club/updatefiles/file/5516344345.pdfIn PDF document text
- http://scan3dsaigon.com/upload/files/696957344.pdfIn PDF document text
- http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608c6c3556370---67375849312.pdfIn PDF document text
- http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608f60474630a---45162483112.pdfIn PDF document text
- http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/160cc5f7aa56a6---rubexagumisawubesa.pdfIn PDF document text
- https://ecole-anglais.com/upload/files/wasanibiduwovifi.pdfIn PDF document text
- http://www.kickcommerce.com/userfiles/file/81138839060.pdfIn PDF document text
- http://karpatskiles.ru/store/files/79996567411.pdfIn PDF document text
- http://ultraljud.nu/bild/files/dabifawa.pdfIn PDF document text
- http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c4681045fdb---virikavomilevuwutidito.pdfIn PDF document text
- http://polipack.ru/content/file/roropa.pdfIn PDF document text
- http://martom24.pl/martom/userfiles/file/dugafinotokafafujixe.pdfIn PDF document text
- https://www.duffylighting.com/wp-content/plugins/super-forms/uploads/php/files/7fc40186382beb68eaf790fa05a6ad8e/nepugalesavovibekoga.pdfIn PDF document text
- https://wpsqld.com.au/wp-content/plugins/super-forms/uploads/php/files/fb46e966f93bbdd67ae0f8966f922f11/gotaxam.pdfIn PDF document text
- http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f3723cec44---diwanesedegefezalomuzoje.pdfIn PDF document text
- http://cleangroupbd.com/ck/upload/files/49091135233.pdfIn PDF document text
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609272054e5c6---sulukojadebesiremo.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_off0000d1d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1D2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e9e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9E4 | 16520 bytes |
SHA-256: a8eca9e3056a678d8ba6ba32fccf98c4e369b82a27165b074415645625df691d |
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font_02_sfnt_off00011440.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11440 | 10448 bytes |
SHA-256: 184c11895ada8e63266d6382ebf0d180eae4663e8fdb27e522c515a0c6a5ecf8 |
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