MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating it is likely a phishing or trojan delivery mechanism. The heuristic 'SE_CALLBACK_LURE' strongly suggests a callback phishing or tech-support scam, where the document prompts the user to call a phone number. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a malicious intent, possibly exploiting PDF vulnerabilities to execute further malicious code.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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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://medvor.ru/uplcv?utm_term=smartphone+chipset+ranking PDF link annotation
- http://wellfoto.cz/pictures/files/jupinikepabufewapak.pdfIn PDF document text
- http://seidels-mineralienwelt.de/images/uploaded/file/49795397687.pdfIn PDF document text
- https://confetti-seasons.ru/upload/files/digiremibavoz.pdfIn PDF document text
- http://www.cavice.fi/tiedostot/files/wasomaxijokipalixubunipo.pdfIn PDF document text
- http://ain.proximeo.com/ckfinder/userfiles/files/7531511037.pdfIn PDF document text
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d2022b57d3---37680102556.pdfIn PDF document text
- http://nitexprofi.cz/userfiles/file/64399913551.pdfIn PDF document text
- http://signexpowholesale.com/project-new/christianbook/upload_images/file/34831565866.pdfIn PDF document text
- http://rfaaa.com/UploadFile/file/20210911050651759.pdfIn PDF document text
- https://www.terraton.com.my/ckfinder/userfiles/files/40414872801.pdfIn PDF document text
- http://drzwiukryte.pl/userfiles/file/repivolojovapuxoropaza.pdfIn PDF document text
- http://clinicaveterinariabilancino.it/userfiles/files/maxekotaparij.pdfIn PDF document text
- https://mhreng.com/userfiles/file/domipurove.pdfIn PDF document text
- http://soundspace.eu/Upload/file/24345179721.pdfIn PDF document text
- http://investin-khj.ir/ckfinder/userfiles/files/47851690720.pdfIn PDF document text
- http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139206a7798d---duzodirilodisujugunesewuw.pdfIn PDF document text
- http://sochisushi.nl/survey/userfiles/files/55389111719.pdfIn PDF document text
- http://fireprovietnam.net/luutru/files/77346653045.pdfIn PDF document text
- https://www.ftha.org/admin/ckfinder/userfiles/files/podevogixivaju.pdfIn PDF document text
- https://gcr.goldcrownresort.com/magazine_files/files/goluguwosozilunogilu.pdfIn PDF document text
- https://thaiahpa.com/flash/files/ratejaw.pdfIn PDF document text
- http://innotack.com/userfiles/files/7753358881.pdfIn PDF document text
- https://sanaspinler.com/calisma2/files/uploads/62830277675.pdfIn PDF document text
- http://ficfart.org/userfiles/file/61829729374.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_off0000e75d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE75D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ff6f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF6F | 17848 bytes |
SHA-256: 0e7e69f8c2a8f56f6312b1e01393253121856fbca5dfccbbcd5d15d08313c099 |
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font_02_sfnt_off00012d5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D5E | 10940 bytes |
SHA-256: b15869dde728cb931d16e682643e720d0c2684dc4adcf555e0b117e0619b4db3 |
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