MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is used in conjunction with a lure related to a nursing entrance exam. The document body, though heavily obfuscated, also contains this URL. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify-hosted PDFs. The primary malicious IOC is the ttraff.com redirector URL.
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.com/pify?keyword=rajasthan+bsc+nursing+entrance+exam+form+date In PDF document text
- http://files.wonderful-marocco.com/uploads/1/3/2/6/132681836/nexujuwilevuval.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3074/8055/files/verbe_etre_avoir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1724/8672/files/loturokazaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8016/3232/files/tratamiento_de_anemia_en_embarazo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5407/9904/files/kumon_answer_book_level_h_math.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7677/9174/files/examples_of_powerpoint_templates.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4363/5879/files/mercruiser_serial_number_lookup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1726/3510/files/belt_driven_starter_generator.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2908/6876/files/85798203189.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9204/2137/files/83435178938.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6101/0842/files/vanakosutokonovaku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2669/2761/files/business_presentation_templates_ppt_free.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_off00006a8d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A8D | 5576 bytes |
SHA-256: 01a86d9b411d6d5bac8504b93ce2bc5b7ea3bfaafd40d023225068107f12b9b5 |
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font_01_sfnt_off00007d56.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D56 | 10472 bytes |
SHA-256: 2c2862a08ce753f5619cc1a0bcfc77fa0b405a65df0cb7afd8e31f45b0cb1c9a |
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font_02_sfnt_off0000a116.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA116 | 16164 bytes |
SHA-256: e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6 |
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font_03_sfnt_off0000b62d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB62D | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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font_04_sfnt_off0000c42d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC42D | 4732 bytes |
SHA-256: 307551fb25c41906a91750d1b7998c86dcc8ff5a2ed6275f84d763ea8b38ee7b |
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