MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised WordPress uploads and other disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs, while numerous, do not provide a clear second-stage payload, but their association with compromised sites is a strong indicator of malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
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://malashealthcare.com/userfiles/files/zilagipufegib.pdf In PDF document text
- http://tubietelbar.hu/uploadfile/lanolapidodamalig.pdfIn PDF document text
- http://papaicountrylodge-longstay.com/user_img/files/4440242488.pdfIn PDF document text
- http://konemara.hu/userfiles/file/50233880501.pdfIn PDF document text
- http://christopherspubandgrille.com/userfiles/files/kogududago.pdfIn PDF document text
- http://thuaphatlailongthanh.vn/upload/contentFile/minhchau/file/jafosatupaleju.pdfIn PDF document text
- http://xn----7sbabaajmdfbk3ddf3azka3b6a2r.xn--p1ai/ckfinder/userfiles/files/lamuzisujewugisadevir.pdfIn PDF document text
- http://lahma.pl/_u/userfiles/file/zikevekafubote.pdfIn PDF document text
- http://krupongs.com/images/file/bomevukovamiwuxet.pdfIn PDF document text
- http://naturalfurnish.com/userfiles/file/rudexutadofajijudefe.pdfIn PDF document text
- http://avon-bratislava.com/files/files/80199163460.pdfIn PDF document text
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132bb723f133---47686233574.pdfIn PDF document text
- http://metaglas.kr/userData/board/file/rasilitinivep.pdfIn PDF document text
- http://zzps.pl/userfiles/file/dijixatufomus.pdfIn PDF document text
- http://alvit-bk.ru/userfiles/file/vagoniru.pdfIn PDF document text
- http://slesnick.net/userfiles/files/pepaxigobubamupotodu.pdfIn PDF document text
- https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/mgjgha5a0oepbp22gtedfmdf8r/lofasati.pdfIn PDF document text
- http://homeopathyhk.com/files/22817377642.pdfIn PDF document text
- http://kingtonkatsu.com/uploads/files/6742785144.pdfIn PDF document text
- http://thuephotocopytaihanoi.com/upload/files/11665500162.pdfIn PDF document text
- https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/6506fs1svnn1hhvhjs0p0p6vj0/jukewixigaduf.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=what+is+latest+android+version+2021PDF 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_off0000b16f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB16F | 17648 bytes |
SHA-256: 0eabba2ca674c167571b4b4542f2a9e7c44faa8e64ad00bcce9f6e0122d7eaf0 |
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font_01_sfnt_off0000dec2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEC2 | 10700 bytes |
SHA-256: 6a1d12cbcfb6f7470f2311d7d8c3198d3e4b04989103222032b97c3085b2c4fc |
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font_02_sfnt_off0000f75f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF75F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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