MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a callback-phone (TOAD) lure. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9984
Heuristics 8
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/1609ec5cb51f88---vibonikewuramegutifiviwu.pdf In PDF document text
- https://12tiga.com/contents//files/34095353443.pdfIn PDF document text
- http://palirna-frydek.cz/uploaded/file/51288351081.pdfIn PDF document text
- https://detskeihriska.eu/ckfinder/userfiles/files/80690974192.pdfIn PDF document text
- http://basyapiemlak.com/yukleme_klasoru/userfiles/file/2207394248.pdfIn PDF document text
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b7a03b481ac---31551146171.pdfIn PDF document text
- https://sunrisepool.net/userfiles/file/39892110045.pdfIn PDF document text
- http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160944afbb245d---lolixi.pdfIn PDF document text
- http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a48d71b530d---39525079708.pdfIn PDF document text
- https://big-cash.de/wp-content/plugins/super-forms/uploads/php/files/1fm3q7c6i5qipaass2s8o2jgos/79562783103.pdfIn PDF document text
- https://wpsqld.com.au/wp-content/plugins/super-forms/uploads/php/files/17333e4139b72547ac6d702064c15a8d/nudojilonumazoronitesuwod.pdfIn PDF document text
- http://magooferta.pl/uploads/fck/file/39108410984.pdfIn PDF document text
- https://simbhaolipower.com/images/file/81506457098.pdfIn PDF document text
- http://praguetransfer.com/files/file/fikepanuverogato.pdfIn PDF document text
- http://dongamold.com/fckeditor/upload_files/file/56433058819.pdfIn PDF document text
- http://orem.mn/uploads/files/71210397148.pdfIn PDF document text
- https://smartstone.ca/userfiles/files/xofuwezodixatuvirur.pdfIn PDF document text
- http://85560891.com/upfolder/e/files/20210730075630.pdfIn PDF document text
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/gk157ag7cjgcpb033043704nh4/kafon.pdfIn PDF document text
- http://wearebryants.com/clients/3/3b/3bb22ab34fb8fe691aabc4d0498f9caa/File/wugibajubofurino.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=aspekto+ng+pandiwa+worksheets+grade+3PDF 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_off0000f5fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5FB | 18112 bytes |
SHA-256: 4f7ec8d4d4244ea0789f9127555e26347663cc3a38bfc11c0241cc55ee0635a5 |
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font_01_sfnt_off00012554.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12554 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013d6b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D6B | 10956 bytes |
SHA-256: 94e8817049eb56b14a2d8df4a8caed7ccf6280abd225696522f6610378dd84b9 |
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