MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a spearphishing attachment designed to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
Heuristics 6
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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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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://pistant.ru/uplcv?utm_term=fundamentals+of+engineering+numerical+analysis+solution+manual+pdf
- https://readxyz.com/wp-content/plugins/super-forms/uploads/php/files/4e26732d5319ab91a43aa40d1839dde0/nipuwututelimezowanix.pdf
- http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a1ddb8a96c8---vagadatasitatabefizu.pdf
- http://tai-yang.tw/taiyang/upload/file/41826314603.pdf
- http://www.houstonorientalrug.com/ckfinder/userfiles/files/10378283361.pdf
- https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/7fe2bd256c666981af32de15ec74bff6/96711217707.pdf
- http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9bb1bbda66---jiwejafewusazisoxig.pdf
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e434d4957d---32805516790.pdf
- https://actaviaserica.org/board/file/files/54628830458.pdf
- http://busankid.com/webfiles/board/file///minom.pdf
- http://alexanderkanevskyartistbiography.com/clientMedia/file/29700118165.pdf
- http://anhuifan.com/upload_fck/file/2021-6-1/20210601121028130497.pdf
- http://haai.org/upload/file/94406706219.pdf
- https://svetpoznaniyaonline.ru/wp-content/plugins/super-forms/uploads/php/files/b1a554f46b8916a5801734e3af8fc555/napugagixokov.pdf
- http://xn--clinicaquirogavilario-vbc.com/wp-content/plugins/super-forms/uploads/php/files/inlj9r0aeiivnfe4r2bc9vom67/sapedizexojevi.pdf
- https://majorsagilekvaros.hu/uploads/file/dapujapixamegutulakojik.pdf
- https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/60c7fdb9a3457ff0047454ce4e3b7319/tugedanixinajon.pdf
- http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d62d2a7722---bexumaruvusida.pdf
- http://shuimotongyuan.com/userfiles/file/varabemetelolerezovuzu.pdf
- http://afghansolar.com/userfiles/file/bewurekexefula.pdf
- https://thewaves.net/wp-content/plugins/super-forms/uploads/php/files/6htsntuhhe17bq3u6bkiopll5p/vofavinefasabemivufevorik.pdf
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e4a88da35b---xunigu.pdf
- https://jgmurphy.com/wp-content/plugins/super-forms/uploads/php/files/253ce4a0c6d56306123a2519458335a1/15179376464.pdf
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a60bfa48316---xanidololapikegufonumafi.pdf
- https://bamor.org/userfiles/file/82011270509.pdf
- http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/fe2111a4fee778658e2ba4834caba697/8418435953.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c7d9.bin559e27e0e02237f1a6c21f47d8e843e65d942fddd25909a0cfe6a1f7a67f3ce7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7D9 | 16468 bytes |
font_01_sfnt_off0000f1e9.bin957f86db530a1b60d7bff719399a9d376b029b3310b6c7fb0cc3e070a29bace9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1E9 | 11156 bytes |
font_02_sfnt_off00010bc8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BC8 | 16792 bytes |
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