MALICIOUS
116
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF document flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it contains a callback phishing lure, prompting users to call a number in a context of billing, refund, or security issues. While no scripts were explicitly extracted, the PDF structure and the presence of embedded URLs suggest an attempt to direct the user to malicious content or services, likely for a phishing or scam operation.
Machine Learning
- Nyx PDF Classifier malicious score 0.8907
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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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 https://feedproxy.google.com/~r/sq/ugae/~3/iCUEKX862tE/square?utm_term=sequence+and+series
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e956e5b630645a0ef8f399/1625904869215/holy_bible_quiz_questions_and_answers.pdf
- https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e92511defa333328aa9ffb/1625892113080/gripping_gaap_graded_questions_2019.pdf
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e832034b964f05b84b8f85/1625829891725/nanegiberobinomopexavuk.pdf
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ec7d19de8c3264fe5e4405/1626111257389/tajanavujuwubulukodu.pdf
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f4d6a1e13ee9766619b1f6/1626658465699/vokoxajilenanifa.pdf
- https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e83cc8ab279f21c75d3f3c/1625832648544/kindly_check_my_attached_resume.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_off0000c8dd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8DD | 16792 bytes |
font_01_sfnt_off0000e0f4.bin852af2430f823471783c5334ef459158aa432e41606baa6a7a58534e936e9fe6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0F4 | 10420 bytes |
font_02_sfnt_off0000f863.bindc10ad48c221fb933a9c633dd007101dcd6eb300dd7a959125c0ab08995509e9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF863 | 16908 bytes |
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