MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a prominent link that redirects to 'ttraff.com', identified as a malicious redirector. The document body and embedded links suggest a lure to download content, likely a malicious payload, under the guise of exam papers. The ML classifier strongly flagged this PDF as malicious, supporting the observed redirection and link farm behavior.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://ttraff.com/wix?keyword=bitsat+2017+question+paper In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4660/7765/files/chairmanship_honor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2260/6759/files/18865753411.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2180/2404/files/seruso.pdfIn PDF document text
- https://static.usrfiles.com/ugd/fa6f14_9ec2f0701af042629bd4597c49738184.pdfIn PDF document text
- https://static.usrfiles.com/ugd/277b62_e10a516b36b74c6cb4da4e2cc14452a9.pdfIn PDF document text
- https://static.usrfiles.com/ugd/2e4eb4_0ea1c569997742169e0d73e7120a89ec.pdfIn PDF document text
- https://static.usrfiles.com/ugd/f65175_0420b36ead6446e3825960c1a23132b5.pdfIn PDF document text
- https://static.usrfiles.com/ugd/52b593_26781be5733b4c6e9666a31165a8f186.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b56239_2db62c3199b94680b6b76eaee12292d2.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1739/5611/files/salanokimumotiwis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/92161478626.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6649/1031/files/lunch_time_cypher.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3998/0710/files/69340759045.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9027/1651/files/nodame.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006aa8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AA8 | 5360 bytes |
SHA-256: 158af206b7fecb27035bc6dcfa2f5c43188582c52188be4f1b17971f217978e1 |
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font_01_sfnt_off00007cfc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7CFC | 5648 bytes |
SHA-256: d0d68c664b8f1e00a7fc92cfda46a434e83ce87f866bdd1c3f12956b581bc36f |
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font_02_sfnt_off00008cbc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8CBC | 10352 bytes |
SHA-256: c9082be4f623ec1357f7371e97f1991ffbe78a313c7c741ff19eb5ae7f6214b3 |
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font_03_sfnt_off0000b055.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB055 | 16224 bytes |
SHA-256: 207faf14306426b668b87aba0c9d447b8ba40b67f0f7b18660ffa0d3c8132265 |
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font_04_sfnt_off0000c5dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC5DD | 3420 bytes |
SHA-256: 10ffeadecc7c453165f268265ace65a52f2cd0069fb6fa4ab8e144d5892caf09 |
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