MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a heuristic firing for a malicious redirector link and a link farm. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a job appointment letter. This URL, 'https://ttraff.cc/pify?keyword=job+appointment+letter+for+new+employee+pdf', redirects to potentially malicious content. The presence of numerous links, many pointing to Shopify domains with PDF files, suggests a link farm designed to attract search engine traffic and potentially distribute malware.
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.cc/pify?keyword=job+appointment+letter+for+new+employee+pdf In PDF document text
- http://files.clearwatermusicserves.com/uploads/1/3/0/7/130738859/sujazefutog-fowamuzibefazop-medutu-sujudavagevakax.pdfIn PDF document text
- http://files.upwardmvmnt.com/uploads/1/3/2/3/132302764/pibisu-zabaxigizav-jeremara.pdfIn PDF document text
- http://files.masterthompson.us/uploads/1/3/1/8/131857758/d0175694.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
- https://cdn.shopify.com/s/files/1/0436/4071/7472/files/51731514660.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0569/6407/files/achaemenid_architecture.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1327/4780/files/mofaruliribatoxudejo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jepomosojavadoji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2534/8261/files/undang_undang_dasar_1945_amandemen_4.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7432/1560/files/kizigowetutina.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5802/8959/files/11278775785.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5122/9089/files/5905758026.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2561/3475/files/75811659542.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4343/8244/files/100_canciones_y_acordes_de_guitarra_gratis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5335/7985/files/zipigumedafojanajaserebil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3015/1330/files/17373670849.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006734.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6734 | 5120 bytes |
SHA-256: f381a25043b114fdc93e86cb38f79a5ebe4bac40e180d3a0397a73bcbaa6a7fd |
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font_01_sfnt_off00007887.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7887 | 10076 bytes |
SHA-256: f135fb83593693b7cd75b88e351af9dc873db15ecc28b5bd0397529815bdd473 |
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font_02_sfnt_off00009b21.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9B21 | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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