MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, exhibiting characteristics of a callback phishing lure. The document body is heavily obfuscated, but heuristics indicate it is designed to trick users into calling a phone number, likely for a scam. While no scripts were directly extracted, the presence of numerous links to potentially compromised CMS uploads and disposable hosting suggests a phishing infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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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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://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/j2q4fv7uj4c75qig87idng59uq/mozikoduxutot.pdf In PDF document text
- http://aggengr.com/uploads/CMS/file/75665883615.pdfIn PDF document text
- http://globeksa.com/ckfinder/userfiles/files/zoxajikagodibotikakut.pdfIn PDF document text
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/29a424fb9ca17508e78ba14887de509b/zimuxatusulevipupewafapal.pdfIn PDF document text
- http://guides2alpes.org/uploads/file/vikawebizunaxopuxoja.pdfIn PDF document text
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba1a07eed4b---59787493427.pdfIn PDF document text
- http://goodtraefarm.com/ckupload/files/87345922957.pdfIn PDF document text
- http://thangmayedex.com/webroot/img/files/zonisasuborulu.pdfIn PDF document text
- https://parokisantolukas.org/Uploads/userfiles/files/dowisukapiludejikep.pdfIn PDF document text
- http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/3tr0fq89t467a509see4p2p371/kewamotaxozu.pdfIn PDF document text
- https://eghamatkade.com/basefile/eghamatkadecom/files/69735246478.pdfIn PDF document text
- http://sinproval.it/userfiles/files/41865451618.pdfIn PDF document text
- https://hyosungulf.com/uploads/file/27555637299.pdfIn PDF document text
- http://ccforum.kr/uploads/file/1623680787.pdfIn PDF document text
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607edc1530d13---6113440958.pdfIn PDF document text
- http://surtek.biz/image/files/20150116_041259.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607739d17394d---63060847939.pdfIn PDF document text
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607df1327fe53---95297425558.pdfIn PDF document text
- http://wisdomtours.net/upload/file/57617508416.pdfIn PDF document text
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608be6bd6a08d---85518922684.pdfIn PDF document text
- https://kermanrooz.com/img/files/8122033549.pdfIn PDF document text
- https://topinsolventa.ro/userfiles/file/vosidafet.pdfIn PDF document text
- http://globalquestconsulting.com/userfiles/files/2272849646.pdfIn PDF document text
- https://audit-advisers.com/userfiles/file/daninoxewiranom.pdfIn PDF document text
- http://aklond.com/UploadFilesfile///2021050312232591.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=oven+braised+corned+beefPDF 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_off0000eb13.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB13 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010325.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10325 | 16648 bytes |
SHA-256: 51bcac867aeb819a494a2450ecb21661874e46d27a77809b9964d083a1ab5201 |
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font_02_sfnt_off00012e7c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E7C | 10556 bytes |
SHA-256: 0dc35af2b1a6a630564f64a431630553f465c4f9cec3b76180464ed1a3183d5f |
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