MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm and contains a callback phishing lure, prompting users to call a number for a fabricated issue. The document body is heavily obfuscated, preventing a deeper analysis of its specific content, but the presence of numerous unknown URLs suggests a distribution mechanism for further malicious content.
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 http://topenglish.sk/app/webroot/gallery/files/jitazewapokebusovugated.pdf In PDF document text
- https://iva-vietnam.com/userfiles/file/21403463202.pdfIn PDF document text
- https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161424301d166f---dugevumutulil.pdfIn PDF document text
- http://micruts.org/userfiles/file/dutovodavinuj.pdfIn PDF document text
- https://univerosg.com/ckfinder/userfiles/files/11012710885.pdfIn PDF document text
- https://go2germany.ru/files/file/zelufodedimogonu.pdfIn PDF document text
- http://obraz-tlt.ru/userfiles/file/sizekerenajotolekadureziv.pdfIn PDF document text
- http://rw-hse-businessconsulting.de/userfiles/file/gomiwukitetegager.pdfIn PDF document text
- http://shyjjc.com/v15/Upload/file/2021911929556789.pdfIn PDF document text
- http://medicamarsala.it/userfiles/files/gigajuwufuzodixexak.pdfIn PDF document text
- http://mskgroup-spb.ru/upload/file/97778724833.pdfIn PDF document text
- http://www.haztartasigepszakuzlet.hu/pics/file/93022063727.pdfIn PDF document text
- https://gastriklandsbf.se/UserFiles/files/vedonalovekirilu.pdfIn PDF document text
- http://www.photonics-science.com/ckfinder/userfiles/files/32934507063.pdfIn PDF document text
- https://transmar.biz/ckfinder/userfiles/files/17369783215.pdfIn PDF document text
- https://lensprovn.com/ckfinder/userfiles/files/koref.pdfIn PDF document text
- http://tuanayapim.com/rsm/files/75059869339.pdfIn PDF document text
- http://abnig.friendship-match.com/upload/files/54602989538.pdfIn PDF document text
- https://parlagame.com/calisma2/files/uploads/36385219015.pdfIn PDF document text
- http://koreabulk.net/userData/board/file/makutabijebafurid.pdfIn PDF document text
- http://keacg.com/upload/files/bovutufimo.pdfIn PDF document text
- https://btcauction.vn/hinhanh/file/94717792681.pdfIn PDF document text
- http://erex.hu/upload/file/dejutijamuwusamira.pdfIn PDF document text
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614452593885f---vibotofin.pdfIn PDF document text
- http://shepardinteriordesign.com/rw/upload/file/81971423403.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=redmi+note+9+bootloader+unlock+filePDF 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_off0000d763.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD763 | 18584 bytes |
SHA-256: b70f57e7c3a23d412dbd857397f7e39f99ce1a037f14946e5697024d11fe1b23 |
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font_01_sfnt_off00010787.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10787 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011f9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F9E | 11012 bytes |
SHA-256: 176013c5943b3a842bbcfbabbf731f374dcdd527c54b15fb98c883cedeebf419 |
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