MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which are unknown or potentially malicious, suggesting an attempt to redirect the user to a compromised site. The document body, though heavily obfuscated, appears to be a lure related to 'brain puzzles for high school students', indicating a social engineering tactic.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 4
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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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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://klm3fg.grhosting.cz/sites/default/files/webform/files/todoxobolukajit.pdf In PDF document text
- http://www.pbttphtk.gov.my/sites/default/files/webform/95941620813.pdfIn PDF document text
- http://oaklandchildcare.org/sites/default/files/webform/34869944823.pdfIn PDF document text
- https://www.woonsocketri.org/system/temporary/webform/bogobovimefegaf.pdfIn PDF document text
- http://www.pbttphtk.gov.my/sites/default/files/webform/zoxajetuvu.pdfIn PDF document text
- http://pilgrimland.com/sites/default/files/webform/resume-uploads/jitebetususi.pdfIn PDF document text
- http://www.grotekeukens.be/sites/default/files/webform/gmawards2018/sumeli.pdfIn PDF document text
- http://www.pbttphtk.gov.my/sites/default/files/webform/xaduxiwipel.pdfIn PDF document text
- http://portal-mysigma.com/system/files/student-proof/28249136979.pdfIn PDF document text
- http://cicatsalud.com/html/sites/default/files/webform/jowodudarazobipadumalo.pdfIn PDF document text
- https://vectorcorp.net/sites/default/files/webform/resume/dofivefodazewinewes.pdfIn PDF document text
- http://www.pbttphtk.gov.my/sites/default/files/webform/1232685222.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/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=brain+puzzles+for+high+school+studentsPDF link annotation
- https://www.vub.be/sites/vub/files/webform/gegisikirusesikogibo.pdfIn PDF document text
- https://minorsoncampus.princeton.edu/system/files/webform/tuvoluxasivawujunaz.pdfIn PDF document text
- https://campusrec.princeton.edu/system/files/webform/47045932069.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://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_off0000dd6f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD6F | 5516 bytes |
SHA-256: 86f6cbfa54fbacf232822db253e406824f28b0c9ab399542eba3d46f8222a9ee |
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font_01_sfnt_off0000f034.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF034 | 10192 bytes |
SHA-256: cebac241894b85b0c7db0142e0739ceed5b42c6d3dd2669537dfa4c756fd7c16 |
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