MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links pointing to external websites, many of which are hosted on compromised CMS upload directories or appear to be part of a link farm. The primary function seems to be directing users to potentially harmful or deceptive content hosted on these external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/5v3afbftjeoc109mdgnur43q1k/80390524383.pdf In PDF document text
- https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/d9ef69f87f532776e67695af449fc6e9/78248114142.pdfIn PDF document text
- https://oiweld.com/wp-content/plugins/super-forms/uploads/php/files/5b0eec1b9e2d0ebd68a497c3394b1641/7680459230.pdfIn PDF document text
- https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/1a55a4f81ae4b8ed787b5c116680ea17/zofuvuteterifenebafu.pdfIn PDF document text
- https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/72b7d3f53dae3ecac0289ced5f3fb713/30118220888.pdfIn PDF document text
- https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/ca2826551973047f2b6ebe17e646a76d/jibigutovobe.pdfIn PDF document text
- http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/90e7f69e3f8cd34223bbe78f28229726/35039331463.pdfIn PDF document text
- https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8cc4e4edc---wevedevoti.pdfIn PDF document text
- http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/96acd795ef9d2ff28ce3483efa77cc90/lujoverogetatozuxirimu.pdfIn PDF document text
- https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/5eb47c23a477366c3ed2dec8579a362c/12894941018.pdfIn PDF document text
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/25fba7ea03481835288d5cbdd4513b88/68900658968.pdfIn PDF document text
- https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/32539574694.pdfIn PDF document text
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/qp4ietsgallsdioj3p8j3f4p1b/devetup.pdfIn PDF document text
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/a0f172b2ae99dd1d8229117c5fef2638/23924053625.pdfIn PDF document text
- http://rosniyom.com/userfiles/files/52195301297.pdfIn PDF document text
- https://fnb-concepts.com/images/uploads/files/90030317055.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=2020+1040+excelPDF link annotation
- 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_off0000e8b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8B1 | 9756 bytes |
SHA-256: a54b64f7127ae2137e7226ffe5d84de50cdc9866ee14f6ea846cac67ec723ce0 |
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font_01_sfnt_off0000fe3b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE3B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001164d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1164D | 16988 bytes |
SHA-256: 12ff55a16d8a70f83f7557eae07a61c84fc6584e354482c39ee6669184257252 |
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