MALICIOUS
236
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file exhibits multiple indicators of malicious activity, including links to algorithmically generated URLs and a link farm hosted on compromised WordPress sites. The 'SE_PAYMENT_REDIRECT_LURE' heuristic strongly suggests the document's content is designed to trick users into changing payment details. While no scripts were explicitly extracted, the presence of PDF-specific exploit heuristics and the ML classifier's high confidence score indicate the document likely exploits a PDF vulnerability to execute a payload, possibly a downloader.
Machine Learning
- Nyx PDF Classifier malicious score 0.9911
Heuristics 8
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LUREDocument describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
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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://inwebjor.ru/uplcv?utm_term=accounting+equation+solved+examples+pdf PDF link annotation
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/j31pa9rqfr83kf1d0hrotas58u/poferiparesisi.pdfIn PDF document text
- http://minipit.com/data/files/1084800333.pdfIn PDF document text
- https://weboonline.com/ckfinder/userfiles/files/29540129007.pdfIn PDF document text
- http://kovofilm.cz/userfiles/file/watezu.pdfIn PDF document text
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a578e00779d---99082681687.pdfIn PDF document text
- https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/160c4f67d8edb3---vazof.pdfIn PDF document text
- http://splhardware.com/UploadFile/file/2021090504571573499.pdfIn PDF document text
- https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d3c00f0183---31908340228.pdfIn PDF document text
- http://savvyais.com/userfiles/file/78397331802.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc5be089372---dirikamejowapadajamow.pdfIn PDF document text
- https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/o9sb7bnph415bbe8h1859r1ir3/20852559368.pdfIn PDF document text
- https://duhocblueocean.vn/ckfinder/userfiles/files/rebizikugojefivoro.pdfIn PDF document text
- https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/ad968942618f60364780b617a3dc2c43/49301093452.pdfIn PDF document text
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e0f81543b81---58654049780.pdfIn PDF document text
- http://mrbossamktown.com/uploads/files/7965496857.pdfIn PDF document text
- http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1610e56fd3344d---pidumesagufofojeb.pdfIn PDF document text
- http://www.jokilaaksonratsastajat.fi/file/78761469726.pdfIn PDF document text
- https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/160ed922e2800b---zumafusiwegusiguz.pdfIn PDF document text
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607143cd52a54---ziluna.pdfIn PDF document text
- https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/7nida6nucjpc8m5k206gg9lrpo/80338066726.pdfIn PDF document text
- http://druckmaschinenservice.com/uploads/fce/files/67683458048.pdfIn PDF document text
- https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607759b61886f---71005338918.pdfIn PDF document text
- https://balaji-technology.com/userfiles/file/36405989300.pdfIn PDF document text
- https://ambulatorioveterinariosismondi.eu/file/tikamaxatutepunapirimida.pdfIn PDF document text
- http://izumrud38.com/ckfinder/userfiles/files/15148480542.pdfIn PDF document text
- http://playeasypiano.com/resources/fck_images/rekumaneba.pdfIn PDF document text
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a804fbaa947---69482682871.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_off0000d669.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD669 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ee7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE7B | 17968 bytes |
SHA-256: 7fd22d3a5408f0a4c554c1db2050a93b1933943e35374065a62e557a33ead115 |
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font_02_sfnt_off00011d0f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D0F | 11256 bytes |
SHA-256: bc835ab825affbcc4ce3f9291abb6e546119209cc241743c44a76317966957ba |
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