MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF was identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It functions as a link farm, containing numerous URLs pointing to various domains, many of which are hosted on disposable infrastructure or compromised CMS uploads. The presence of 'utm_term_redirector=True' suggests an intent to manipulate user navigation for malicious purposes.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://thamcohoaian.com/webroot/img/files/4854714922.pdf In PDF document text
- https://china-glass-mosaic.com/userfiles/files/20210918_162123.pdfIn PDF document text
- https://thucphamtruongxanh.com/Upload/files/ripejakojaxivamim.pdfIn PDF document text
- https://www.suep.gr/ckfinder/userfiles/files/51356224420.pdfIn PDF document text
- https://drivetripper.com/userfiles2020/files/gilikomowafoxatumuru.pdfIn PDF document text
- http://pantipplaza.com/userfiles/file/91581986718.pdfIn PDF document text
- http://podwierzba.eu/ckfinder/userfiles/files/22893139805.pdfIn PDF document text
- http://retailcop.ca/files/pejubokoxigivanobamumuj.pdfIn PDF document text
- https://la-klamm.org/Files/files/99286403848.pdfIn PDF document text
- http://xn--80aatg4aaaddkhfhbf3evf.xn--p1ai/ckfinder/userfiles/files/sufezonosonufatav.pdfIn PDF document text
- https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144f1ed1c1c2---95530614435.pdfIn PDF document text
- https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/8862b798208e8f11418a7dee616897db/99429776184.pdfIn PDF document text
- http://klm-co.ru/foto/ck/files/10170864472.pdfIn PDF document text
- http://asiavent.com/UserFiles/file///25297955909.pdfIn PDF document text
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/16135f7d11dc26---nemosababanonigudifurilo.pdfIn PDF document text
- http://mistral-paints.cz/userfiles/files/83003369654.pdfIn PDF document text
- http://coinproject.com/userfiles/image/file/12572611156.pdfIn PDF document text
- http://soles2walk.cz/data/file/jadifavexuvepizawegibip.pdfIn PDF document text
- http://wmsone.com/eimages/file/8743291375.pdfIn PDF document text
- https://popa.com.br/wp-content/plugins/super-forms/uploads/php/files/29a3d33969e59de2234b304d6b1e5b3b/kigavobudabemifoki.pdfIn PDF document text
- http://hoangminhceramics.com/app/webroot/uploads/files/62881664166.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=directv+on+my+android+phonePDF 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_off0000d70e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD70E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ef25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF25 | 10744 bytes |
SHA-256: 5742ac8b2c769b7a45916acc489316e4679d17ecb5d754b5c1e9031e406b277e |
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font_02_sfnt_off000107ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107AE | 19232 bytes |
SHA-256: 40f5963e4a304ed30bd048e969b6060c1d3fe0f7c9e4624909a0094c8fefe5bb |
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