MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The presence of embedded URLs, despite some being marked as benign, suggests a potential phishing or trojan delivery mechanism. The PDF structure and the nature of the heuristics point towards exploitation of a PDF vulnerability to execute a payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9906
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 https://feedproxy.google.com/~r/sq/ugae/~3/5JeRQhMeIYg/square?utm_term=easy+hairstyles+for+toddlers+with+thin+hair
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e9461037cb904475611994/1625900560864/essential_thrombocythemia_definition.pdf
- https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e92eb3b673687559683dc1/1625894579525/25_scrum_master_interview_questions_and_answers.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f11d1db238236d23329552/1626414366010/a_rave_party.pdf
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e90777dc37083541b7bc38/1625884535248/thank_you_jesus_for_the_cross.pdf
- https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e7aa811d61f435cef544a5/1625795201346/29610120965.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f22e48890fa5305bdb7c32/1626484296652/endeavour_medical_guide.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f0d5177c30ad68c63a6ec6/1626395927473/59787236846.pdf
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f2029968d14b0c9c2c9877/1626473113537/walenixi.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e8ed2a66be7e490f0d2fa5/1625877802096/first_aid_qa_for_the_usmle_step_1_fourth_edition.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d724.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD724 | 16792 bytes |
font_01_sfnt_off0000ef36.binfdd49e8a244b4d2d1f03857f4e4aabad9c4839067461983edfaa8d9478e16517 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF36 | 17180 bytes |
font_02_sfnt_off00011bfd.bin8b87dc983f0646e0a9f6ec07495a21411fc2f885be73b6815d04503c68e256df |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BFD | 10632 bytes |
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