MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with numerous URLs pointing to potentially compromised websites or disposable hosting. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM firings strongly suggests a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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://stillwaiting.org/userfiles/file/84289516456.pdf In PDF document text
- http://xsjsbzrw.com/uploads/files/lejuboxufu.pdfIn PDF document text
- http://hanaelectric.com/userData/board/file/sazuribitobisefawabuf.pdfIn PDF document text
- https://lederstuehle-shop.de/ckfinder/userfiles/files/90880990593.pdfIn PDF document text
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140c313c986d---4973734086.pdfIn PDF document text
- https://fullprotec.com/ckfinder/userfiles/files/rajageku.pdfIn PDF document text
- http://cafegreenwichvillage.com/uploads/files/98457180843.pdfIn PDF document text
- https://www.rapn.ru/ckfinder/userfiles/files/7080075564.pdfIn PDF document text
- http://cableesmaltado.com/d/files/91150698653.pdfIn PDF document text
- http://polipadel.com/userfiles/file/tunolilepumi.pdfIn PDF document text
- http://otczenacts.com/media/files/5780195443.pdfIn PDF document text
- https://netiko.ge/img/Data/file/20380714359.pdfIn PDF document text
- https://muacash.com/webroot/img/files/16615416283.pdfIn PDF document text
- https://edusfera.pl/upload/file/sogurokewakasorote.pdfIn PDF document text
- http://www.cenlaenvironmental.com/siteuploads/editorimg/file/xipekefelet.pdfIn PDF document text
- http://tnmetalworks.com/images/files/37743751108.pdfIn PDF document text
- http://makesomenoise.hu/upload/file/nebapezamedirasup.pdfIn PDF document text
- http://axwelindia.com/uploads/86825096683.pdfIn PDF document text
- https://baoholaodong24.baohohoanglong.com/userfiles/file/kuzot.pdfIn PDF document text
- http://www.startservis.sk/novy/ckfinder/userfiles/files/29738777323.pdfIn PDF document text
- http://akcjonariusz.com/UserFiles/file/salap.pdfIn PDF document text
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161333f8524388---38514762866.pdfIn PDF document text
- http://sanyosushiglendora.com/uploads/files/55675521878.pdfIn PDF document text
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16146798f22d06---28992232048.pdfIn PDF document text
- http://detskypohar.cz/upload/file/6724021515.pdfIn PDF document text
- http://studiotecnicodavico.eu/userfiles/files/xisotapadamapobi.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=long+haircuts+for+oval+face+femalePDF 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_off0000d77b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD77B | 10904 bytes |
SHA-256: 2ebf5657983e12c99b0f2b2f19672dedbee9cfe330d1a47c7b1c1d919580f502 |
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font_01_sfnt_off0000f09f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF09F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000108b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108B1 | 16760 bytes |
SHA-256: aa7440e310504187f942a3f1bfd50bcd1fe0ced79461c81da653c8a2b8d14a9b |
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