MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple embedded links, including one identified as a malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for free downloads, aligning with the 'SE_INVOICE_LURE' heuristic. The primary malicious URL, https://ttraff.com/pify?keyword=business+english+pre-+intermediate+exercises+pdf, is used to redirect users to potentially harmful content, likely as part of a phishing or scam campaign.
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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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/pify?keyword=business+english+pre-+intermediate+exercises+pdf In PDF document text
- http://gejavoxut.sunreihealing.ca/uploads/1/3/2/6/132695829/9320101.pdfIn PDF document text
- http://zukuwut.californiatradewinds.com/uploads/1/3/0/7/130776257/b810465860ba.pdfIn PDF document text
- http://files.theatreahs.com/uploads/1/3/1/4/131409677/fubesimusov.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9099/1521/files/auggie_and_me_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8286/6072/files/17642763724.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9612/8153/files/32348859266.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0081/5006/files/zumubetofobinogejapif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8494/6333/files/sabarimala_temple_case_judgement.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9019/8180/files/29997774977.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9073/8328/files/medicinal_plants_articles.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3096/9511/files/nolenexevaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/9008/7829/files/mpbse_12th_admit_card_supplementary.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9775/9643/files/26247174288.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6021/4425/files/chicago_manual_of_style_17th_edition_free_download.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000684a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x684A | 5716 bytes |
SHA-256: fdfa844266fdd4e523de5111b05329fae1f470641ed689f4f74c4a7fb61c0921 |
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font_01_sfnt_off00007b95.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B95 | 1832 bytes |
SHA-256: 2efce7ab7e40088d636505c3bfb509387c7acf8cfb7972371bfedf85748c46cc |
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font_02_sfnt_off00008474.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8474 | 10364 bytes |
SHA-256: c38e4bcdbcb6e009a2d854ffa8a6dac623c7ce77ef4055a7d6601c270a29f6e4 |
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font_03_sfnt_off0000a821.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA821 | 16508 bytes |
SHA-256: c27f923d842fcf75914bcb38f910c7ee9e5e847eea41e4b8197fd3b1a7c12a35 |
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