MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics, including PDF_SEO_UTM_REDIRECTOR_LINK and ML_NYX_PDF_MALICIOUS, indicating a phishing or malicious intent. The primary URL identified, https://ketchas.ru/square?utm_term=all+in+one+class+10+maths+pdf, is associated with a redirector, suggesting an attempt to obscure the true destination of the malicious content. The ClamAV detection further confirms its malicious nature, classifying it as Pdf.Phishing.Trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 5
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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://ketchas.ru/square?utm_term=all+in+one+class+10+maths+pdf PDF link annotation
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e78db85eabb22f35d5f8de/1625787832158/machine_learning_in_business_john_hull.pdfIn PDF document text
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60edd284d6548a387fd1dc66/1626198660382/if_you_throw_me_to_the_lions.pdfIn PDF document text
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec7b88154eb17b684929ed/1626110856618/upper_body_warm_up_exercises_before_workout.pdfIn PDF document text
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec9c89e4ca3800a119ede4/1626119305993/17579830374.pdfIn PDF document text
- https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60f0c9316e9a9a494a9fe287/1626392881865/friedreichs_ataxia_meaning.pdfIn PDF document text
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e9228ec14ff043cd5cfe96/1625891470266/wevodujikidawisu.pdfIn PDF document text
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f05fb456d57e6ac3d27cb9/1626365876482/how_to_remove_password_of_a.pdfIn PDF document text
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f076763f5e7b0f5ec4735a/1626371702564/edwards_personal_preference_schedule_manual.pdfIn PDF document text
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ede3644485e421690256e5/1626202980709/billable_meaning_in_tamil.pdfIn PDF document text
- https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e918a9320dbd0de280b6c3/1625888937594/lokobiremadosanisomevizat.pdfIn PDF document text
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ee2c936d75c50a5d429fe5/1626221715289/neterakopopotusaloduwubun.pdfIn PDF document text
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ec8b9854a52c186ce5d792/1626114968769/lebipavofunojosidugo.pdfIn PDF document text
- https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ec90c344349d7bb06d6108/1626116291487/security_guard_resignation_letter_format.pdfIn PDF document text
- https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60ee4c5c2ee8b51fd9365069/1626229853037/how_to_find_the_joint_probability.pdfIn PDF document text
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ee1ad66bb0602df20f0006/1626217174219/is_yawning_really_contagious.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://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_off0000cb1d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB1D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e334.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE334 | 10940 bytes |
SHA-256: ab56aefcdf75c2aec7e1b40e9c6282d4181eded7d5c810665a82e746b9820479 |
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font_02_sfnt_off0000fc65.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC65 | 15936 bytes |
SHA-256: 5122ac75526b69ced5721ccb368ecbe51628982a3b2c6ff47fa2698d53e21b53 |
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