MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The numerous embedded URLs, many pointing to compromised CMS upload directories or disposable hosting, indicate a link farm designed to redirect users to potentially malicious sites. The primary attack pattern involves luring users through these links, likely for phishing or to serve further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 http://www.niziointerior.pl/upload/file/6037200105.pdf In PDF document text
- http://theopenhouseclub.com/wp-content/plugins/super-forms/uploads/php/files/dfa228835f908700258d6064f45cab49/lobedikakixivudok.pdfIn PDF document text
- https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/a02f37978fc2f8831063db12222e55a1/77279269795.pdfIn PDF document text
- http://www.icf-plant.com/files/file/25019668057.pdfIn PDF document text
- https://www.picmephotoboothhire.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16098739bf096e---monapopomoxegikomowa.pdfIn PDF document text
- https://teenvolunteer.org/wp-content/plugins/super-forms/uploads/php/files/84743c95030bd25321c4287b2baf2559/fovoperanuxizoluzatomi.pdfIn PDF document text
- https://thefencedocumentary.com/adminfiles/file/givizixifijudofutumog.pdfIn PDF document text
- http://dyglas.com/userData/board/file/74467341257.pdfIn PDF document text
- http://abwingsva.com/uploads/files/17396637286.pdfIn PDF document text
- https://fibaquitaine.fr/cebatrama/userfiles/files/41533541815.pdfIn PDF document text
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/vjg82590ojabokr2990rbghj9p/gotirajonipub.pdfIn PDF document text
- http://health-bridge.in/upload/file/natadexavugufobofulimiti.pdfIn PDF document text
- https://webtraffic.ch/wp-content/plugins/super-forms/uploads/php/files/3998nl4tpd7fbnomvtsajofdge/72240881982.pdfIn PDF document text
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/3562bd84608cde0126553b6725af1474/wobezinafewi.pdfIn PDF document text
- https://urbanplace.me/wp-content/plugins/super-forms/uploads/php/files/542e849042850af20571a88341bbdc45/siromodafojulazeduf.pdfIn PDF document text
- http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609366d7b20b5---vopifixojabufimo.pdfIn PDF document text
- http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/4669d4d7451a9a0295a0ce744e75aa07/kupuxurivaluxuvuma.pdfIn PDF document text
- https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa12a470933---1234789328.pdfIn PDF document text
- https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/57d08e50df03c8386f9f33ae5e3f1c40/43112491167.pdfIn PDF document text
- https://sanipacific.com/attachment/file/bedagujaxiluzunakonabo.pdfIn PDF document text
- http://ezibra.pl/upload//file/24651687697.pdfIn PDF document text
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160d2141473238---56433030390.pdfIn PDF document text
- http://antasboru.com/guvennet/resimlerfiles/57144306133.pdfIn PDF document text
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607a019f56ec0---folakaxugakidumewefisenem.pdfIn PDF document text
- http://inkjetartandimage.com/Uploads/file/56183665717.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=online+conversion+of+pdf+to+pdfPDF 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_off0000e257.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE257 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fa6e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA6E | 10544 bytes |
SHA-256: 71576446d58935f88f1503c8772d11e27aef953eeec24107b051fd7c003032fa |
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font_02_sfnt_off000112a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112A0 | 16464 bytes |
SHA-256: 0aeb2d3e93321f38f8fa23074e647cc4166b247cf2d2d642d7b9c0de0d70e9aa |
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