MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm and employs a callback phishing lure, prompting users to call a phone number under the guise of a billing or security issue. While no scripts were extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to malicious sites or initiate fraudulent communications.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://myphamlulanjina.com/upload/files/bolel.pdf In PDF document text
- http://pospatrans.cz/UserFiles/File/zuvobufuxetiwemutatibapa.pdfIn PDF document text
- http://technology-mp.it/userfiles/files/25828394698.pdfIn PDF document text
- http://spbmedaks.ru/sites/default/files/uploads/xudexotisifed.pdfIn PDF document text
- https://gestcargo.com/uploadfiles/file/38650603248.pdfIn PDF document text
- https://asmitahrgroup.com/ckfinder/userfiles/files/91854420169.pdfIn PDF document text
- https://oncetrabzon.com/resimler/files/kafuxerugipu.pdfIn PDF document text
- http://speckletrack.com/update/editor/file/67725152051.pdfIn PDF document text
- http://ledspectrumthai.com/ckfinder/userfiles/files/55287190373.pdfIn PDF document text
- http://web-news.eu/www/pkpar/userfiles/file/92049187611.pdfIn PDF document text
- http://rosniyom.com/userfiles/files/fojiwemijusulipu.pdfIn PDF document text
- http://lex-ter.ru/admin/ckfinder/userfiles/files/xarugeliduwozilix.pdfIn PDF document text
- https://ciiinnovationsummit.com/ci/userfiles/files/xabejos.pdfIn PDF document text
- https://zaragozadenoche.es/upload/files/35946786801.pdfIn PDF document text
- http://studioguatta.it/userfiles/files/sefupopafufegizox.pdfIn PDF document text
- http://langeline.com/ckeditor/upload/files/38862339060.pdfIn PDF document text
- https://www.cascatai.com.br/ckfinder/userfiles/files/ravaronu.pdfIn PDF document text
- http://www.gpe-el.pro/ckfinder/userfiles/files/pewivuzijesorutabutokamu.pdfIn PDF document text
- https://topinsolventa.ro/userfiles/file/50969715244.pdfIn PDF document text
- http://matstravel.ru/userfiles/file/9096785027.pdfIn PDF document text
- https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/ujc8satsvko5po1c3ed3qe1962/misanejejedudanarif.pdfIn PDF document text
- http://elitakhealing.com/ckfinder/userfiles/files/46230144619.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=all+indian+web+series+appPDF 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 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ef75.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF75 | 17620 bytes |
SHA-256: 2b4396be2d35c36c07b9fe04b855fd146f4132e95674a7e01661e63c6dfff1a9 |
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font_02_sfnt_off00011d00.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D00 | 10376 bytes |
SHA-256: 13cf57c60de38bc5444e6311004dacc80f03ec2c3e57b99f7c66234f513162fc |
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