MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'Bsc agriculture 5th semester syllabus pdf' and the malicious redirector URL, suggesting a lure for free document downloads. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be a phishing attempt using a deceptive document to drive traffic to malicious infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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.ru/pify?keyword=bsc+agriculture+5th+semester+syllabus+pdf In PDF document text
- http://files.aarhuscityguide.info/uploads/1/3/1/4/131437225/rirapokizogivoroje.pdfIn PDF document text
- http://files.alyshakarle.com/uploads/1/3/1/4/131437728/167835.pdfIn PDF document text
- http://files.prs.org/uploads/1/3/1/4/131483069/furivina.pdfIn 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/1/0431/7764/0092/files/kovevoralasazunixovuj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8148/2919/files/kewilerawilavog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3395/0358/files/biochemistry_free_books.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6493/1992/files/45636379050.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9449/9743/files/detazuvitafilirupilitewo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7428/8793/files/waiver_of_attorney_client_privilege_form.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0791/7729/files/76967229772.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/7618/8315/files/javascript_zero_pad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9485/2252/files/reziwalimivupusulukedu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6826/8456/files/rirajiramedamoxisudutuj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kevesuladufutaniwor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0840/0280/files/platinum_bullets_gungeon.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_off00007214.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7214 | 5984 bytes |
SHA-256: 90d58267379c85fb591daeb14797da73774935c9a3ca05b2721a0bf6f22a9840 |
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font_01_sfnt_off0000864d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x864D | 2320 bytes |
SHA-256: 7bb91423d63eb6bd7c2657278979848d60b7d38679106ec23dbd755ba6ab3d32 |
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font_02_sfnt_off0000909d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x909D | 13984 bytes |
SHA-256: 9d9fe7d0dc16347d76ade51ce399c328921008582a3a209c48338e2c05a5dd0d |
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font_03_sfnt_off0000bc41.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC41 | 16224 bytes |
SHA-256: 4362e686776cae9b5e877a8e5de4a1ff5ae9966626bcf1046762b8e3a01bbea2 |
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font_04_sfnt_off0000d1ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1CA | 4560 bytes |
SHA-256: 12224b502824936682d910b80e573970ea29d6601bcd2f1487498a867f907e19 |
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