MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest a phishing or trojan payload. Although no scripts were explicitly extracted, the nature of the URLs and the heuristic firings point towards a malicious document intended to lure users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://irlanc.ru/uplcv?utm_term=block+puzzle+star+game PDF link annotation
- https://fa-vietnam.com/webroot/img/files/25221166582.pdfIn PDF document text
- https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/1587c44e4e0948bb02f282b35130eae8/tozalurudakavab.pdfIn PDF document text
- http://westernmaki.com/uploads/files/tuxaburuvagof.pdfIn PDF document text
- http://happyorderfood.com/uploads/files/47712623756.pdfIn PDF document text
- https://mimpishio2.net/contents/files/befiwilozizixosamagunupup.pdfIn PDF document text
- https://dnm.tw/uploads/files/202109040728016798.pdfIn PDF document text
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/itrurmhnnhbjhmhmvuikvbjoll/kerepaxijomovaxog.pdfIn PDF document text
- http://100gastro.cz/soubory/files/pidadurivilajofu.pdfIn PDF document text
- http://watch62.ru/files/files/digosibubugomopezudotafa.pdfIn PDF document text
- https://athensviptour.com/wp-content/plugins/super-forms/uploads/php/files/e3a4bad6227ba2d67b037a1b5b30d89a/92781339817.pdfIn PDF document text
- http://kd-council.com/upfile/files/vifowofuretixenewusor.pdfIn PDF document text
- http://japan-railpass.info/images/blog/file/vegudujesidiredidad.pdfIn PDF document text
- http://palenice.net/obrazky_clanky/file/43538792773.pdfIn PDF document text
- https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/1c9ev7r1vh79lfb2ga1g5sqqe7/pepigune.pdfIn PDF document text
- http://smsgurugram.com/miet/assets/files/49752801659.pdfIn PDF document text
- https://newsru.md/upload/userfiles/files/romedinalivoniwexozixe.pdfIn PDF document text
- https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/16131fd7beffe6---34521895078.pdfIn PDF document text
- https://unitjaya.com/contents/files/53369053222.pdfIn PDF document text
- https://cdmsig2.com/ckfinder/userfiles/files/36358781044.pdfIn PDF document text
- https://spitalmoldovanoua.ro/ckfinder/userfiles/files/10161725376.pdfIn PDF document text
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/a4300f28cda6ebb642f513dc0d604e56/63828491274.pdfIn PDF document text
- http://aaas.handyfriendship.com/upload/files/vimexufuxiguvukudax.pdfIn PDF document text
- http://westhollywood.ilovepokebar.com/uploads/files/varapew.pdfIn PDF document text
- https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/adbd88656c4bb4ef51248a87fbfb4cc3/87798421507.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_off0000bf8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF8A | 10824 bytes |
SHA-256: d2598afc43dfb32e3e64234848e91f8646625de83d0c61c318219cb4f906bcd1 |
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font_01_sfnt_off0000d8b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8B5 | 17820 bytes |
SHA-256: 43a6811cca20d8a8ce6961ee94fd88a74c3bbbe23b29f6da5a4d8b0c20f6c551 |
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font_02_sfnt_off000106d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106D4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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