MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs pointing to various domains, many of which appear to be compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URI heuristics and the ML_NYX_PDF_MALICIOUS firing strongly support a phishing or malware distribution attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://philabc.ru/uplcv?utm_term=on+the+jellicoe+road+pdf PDF link annotation
- https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/fc75532170d8cf081fe8fa7a5fa188ed/warakazife.pdfIn PDF document text
- http://e-skala.pl/userfiles/file/kemam.pdfIn PDF document text
- https://pfollowers.com/ci/userfiles/files/43267893872.pdfIn PDF document text
- http://dges.in/userfiles/file/tumojefopewibi.pdfIn PDF document text
- http://artin-intranet.com/ckupload/files/41269013061.pdfIn PDF document text
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1612f47c7e0605---wujuvalugekixeviki.pdfIn PDF document text
- http://good163.cn/Uploadfiles/files/tabomemajera.pdfIn PDF document text
- http://nordicwalkingturak.hu/_user/file/96423498877.pdfIn PDF document text
- http://acelybio.com/upload/files/zofazukimesak.pdfIn PDF document text
- http://eastendmediation.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/74155899991.pdfIn PDF document text
- https://idd.no/ckfinder/userfiles/files/84043692072.pdfIn PDF document text
- http://skontrolsengineering.com/file_media/file_image/file/binuratibilulujebake.pdfIn PDF document text
- https://rovetco.com/userfiles/file/debobikoresuwidadapejixa.pdfIn PDF document text
- https://wegofa.com/userfiles/file/vovegezujugepedifib.pdfIn PDF document text
- http://df-2.de/images/daten/file/76979076953.pdfIn PDF document text
- https://hohsingfiber.com/ufiles/files/zobanaviwapesenakiwuw.pdfIn PDF document text
- https://pnp-studio.com/fckeditorfiles/file/21848665770.pdfIn PDF document text
- http://tourister.kr/userfiles/file/jatapalakibekifox.pdfIn PDF document text
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/lpp8i3pts47b3onh8p0q8j7esv/28385366365.pdfIn PDF document text
- http://paoladebenedetti.eu/userfiles/files/xazutexumosabomarefaginut.pdfIn PDF document text
- https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/fdg9egp4nvvfrvd66ken6am4nc/ranigerilonazelen.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_off0000dcac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCAC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f4c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4C3 | 10704 bytes |
SHA-256: f77f6111131e8f47012f9ddde17b1518416a5941faead92e882b97292dc78c95 |
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font_02_sfnt_off00010d33.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D33 | 17672 bytes |
SHA-256: 76397f9a223789cfc6500b901fc86aea0da1b7bc75e0c704157f69228a5f9484 |
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