MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded URLs, many of which are hosted on domains with unknown reputations, suggesting a link farm or phishing attempt. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly indicates this malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a phishing or malware distribution campaign, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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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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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://portal-mysigma.com/system/files/student-proof/9555400870.pdf In PDF document text
- http://www.grotekeukens.be/sites/default/files/webform/gmawards2018/87706268510.pdfIn PDF document text
- https://ambrose.edu/sites/default/files/webform/9027254294.pdfIn PDF document text
- http://klm3fg.grhosting.cz/sites/default/files/webform/files/tekuxegejarikuferibo.pdfIn PDF document text
- https://aboss.by/sites/default/files/webform/pibodanagulevegomenet.pdfIn PDF document text
- https://www.mothercare.ro/sites/default/files/webform/resumes/49428740932.pdfIn PDF document text
- https://natsihwa.org.au/sites/default/files/webform/mufuwujaxerafesa.pdfIn PDF document text
- http://oaklandchildcare.org/sites/default/files/webform/1289321409.pdfIn PDF document text
- https://www.dgs-interparts.be/sites/default/files/36138637258.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=dirt+devil+power+max+pet+upright+vacuum+ud70167p+beltPDF link annotation
- https://community.princeton.edu/system/files/webform/22535495660.pdfIn PDF document text
- https://drones.princeton.edu/system/files/webform/voretazejujuwewoz.pdfIn PDF document text
- https://lib.asu.edu/system/files/webform/85824103047.pdfIn PDF document text
- https://lib.asu.edu/system/files/webform/53252105934.pdfIn PDF document text
- https://campusrec.princeton.edu/system/files/webform/wawojamifot.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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000df8b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF8B | 6096 bytes |
SHA-256: 33ba25323ff7102bf20063987428f4b34bc40912458e9e5fd3ee6e2c33a146d0 |
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font_01_sfnt_off0000f441.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF441 | 11156 bytes |
SHA-256: 5c5dda90961ff2185741df0c9411634521d13ae876329f3229962e250c1f8c6d |
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