MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple disposable hosting sites, some of which are compromised WordPress uploads. The presence of external URIs and the overall structure suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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 http://techsystem.gr/data/uploads/ckeditor/files/rorixopomurakubexoxot.pdf In PDF document text
- http://telecycling.info/files/file/wiriwikifevulij.pdfIn PDF document text
- https://ewdel.cz/ckfinder/userfiles/files/4572732317.pdfIn PDF document text
- https://billard-hauri.ch/userfiles/file/xuxob.pdfIn PDF document text
- http://budapesticukraszdak.hu/userfiles/files/20387464661.pdfIn PDF document text
- https://minlinart.com/archive/upload/files/puvunomuteja.pdfIn PDF document text
- http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/c4dbe91a764869bc13fcb4bd016ad493/zepomerodudoxupufi.pdfIn PDF document text
- http://eurolocal.info/sites/default/files/images/file/90834263767.pdfIn PDF document text
- http://codemessaging.net/ckfinder/userfiles/files/92571733394.pdfIn PDF document text
- http://yuanhebiotech.com/upload/files/51642130218.pdfIn PDF document text
- http://homestationrealty.com/userfiles/files/75056903480.pdfIn PDF document text
- https://samarthanamparisara.org/apadmin/uploads/userfiles/files/90704697179.pdfIn PDF document text
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161339a1ae93cc---7456960830.pdfIn PDF document text
- http://bong-dem-long.org/upload/editor/files/sotejijoxelebu.pdfIn PDF document text
- http://linuxnewyork.com/draft/media/dazagipovakefikibopusumul.pdfIn PDF document text
- https://indikino.com/ckfinder/userfiles/files/1437087795.pdfIn PDF document text
- https://kaskad-74.ru/images/uploads/93744999405.pdfIn PDF document text
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16148b7529fa9b---88582085787.pdfIn PDF document text
- http://ylphs.com/ckfinder/userfiles/files/26532570368.pdfIn PDF document text
- http://goref.ru/files/file/60050303588.pdfIn PDF document text
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/7906a208dede144b154b390b44c99093/63449701625.pdfIn PDF document text
- https://madeinstlucia.com/userfiles/files/lexewonaluf.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=omegle+apk+2020+free+downloadPDF 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_off0000b917.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB917 | 10928 bytes |
SHA-256: 932eb5b7b0a88f5b741601e07713f7d2b2779c5c5413b98cd158b48895a8a69c |
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font_01_sfnt_off0000d23f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD23F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ea51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA51 | 18204 bytes |
SHA-256: 29ccd44d64a486f70865e4605726c0b56ea87e7ff8fa7e0832865e08b837a3c6 |
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