MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing or trojan. Heuristics indicate it functions as a link farm and contains a callback lure, prompting users to call a number in a deceptive context. While no scripts were directly extracted, the presence of multiple external URIs and the callback lure strongly suggest a phishing attempt designed to trick users into revealing sensitive information or initiating fraudulent transactions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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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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://archism.ru/uplcv?utm_term=virtual+sim+apk PDF link annotation
- https://5udua.com/contents/files/64743778595.pdfIn PDF document text
- https://miguktour.com/FileData/ckfinder/files/20210913_A6BD40A4E895A7F0.pdfIn PDF document text
- http://hide-bo.com/img/tmp/file/jetoxixubolirojes.pdfIn PDF document text
- http://parfumerieindex.nl/images/uploads/razukubezufonakateweza.pdfIn PDF document text
- https://www.comperat-89.fr/ckfinder/userfiles/files/ganonagumiwedazixasu.pdfIn PDF document text
- https://www.leasing.net.in/ckfinder/userfiles/files/65069133934.pdfIn PDF document text
- https://rougezenekar.hu/files/file/72867961019.pdfIn PDF document text
- https://pepinieramontana.ro/ckfinder/userfiles/files/nipuliropezitijoxulup.pdfIn PDF document text
- https://heart-calligraphy.com/uploads/files/202109032155231767.pdfIn PDF document text
- http://eyela.kr/uploadfile/fckeditor/file/kifuwovilidajosu.pdfIn PDF document text
- http://megatex-plast.ru/pub/file/8675719384.pdfIn PDF document text
- http://wisdomtours.net/upload/file/jadagupogozo.pdfIn PDF document text
- https://saintarseny.ca/sites/saintarseny.ca/files/file/sugafilidepepuretuwedazi.pdfIn PDF document text
- http://xn--j1aai7d.xn--p1ai/userfiles/file/75072711765.pdfIn PDF document text
- https://cqhuaan.myhost360.cn/upload/files/09-09-20-31-45-40.pdfIn PDF document text
- https://associazionedynamica.it/uploads/file/rerekirijuzadisefopa.pdfIn PDF document text
- http://hzdsbg.cn/uploadfile/1631315971.pdfIn PDF document text
- http://matraholding.hu/images/userfiles/files/90943473534.pdfIn PDF document text
- http://architettogherardi.eu/userfiles/files/3307334069.pdfIn PDF document text
- http://avision-italia.com/userfiles/files/xurasafotojawi.pdfIn PDF document text
- http://fuerst-architects.com/uploads/file/jagobeledonuvajos.pdfIn PDF document text
- https://thegioidongphuc.net/ckfinder/userfiles/files/71097347011.pdfIn PDF document text
- https://vegas-shop.net/uploads/files/15849138557.pdfIn PDF document text
- http://aptekarynek.pl/zdjecia/fck/file/32775898103.pdfIn PDF document text
- http://tc-antey.ru/uploads/files/murowu.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_off0000b708.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB708 | 16288 bytes |
SHA-256: 43e7955440eede73f19649a535d6919340f9b1f6988fcaf390eece447821c0f4 |
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font_01_sfnt_off0000e0e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0E3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f8fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8FA | 10216 bytes |
SHA-256: 805ca4945bbc7d7ffe54461e4988327bce04ede9b36e409addfbb6db0e9ff6fe |
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