MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link that redirects to known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text that appears to be a lure for a worksheet. The ML classifier strongly flagged this PDF as malicious. The primary IOC is the redirector URL, which is likely used to serve further malicious content.
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/wb?keyword=successes%20of%20the%20civil%20rights%20movement%20worksheet In PDF document text
- http://tojegiz.catholic-teaching-alliance.org/uploads/1/3/1/6/131606343/960990.pdfIn PDF document text
- http://files.missionographer.com/uploads/1/3/0/8/130814907/jujelizulejotus.pdfIn PDF document text
- http://files.fortmyerthriftshop.org/uploads/1/3/1/4/131452958/52876aec.pdfIn PDF document text
- http://pugil.orderalaminute.com/uploads/1/3/2/8/132814930/juwosok-rimixufusa-pajadix.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/1/0432/8076/0990/files/dogamesa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5041/7827/files/8041585268.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1827/3446/files/34396669682.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8987/9445/files/36836725085.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/9657/5904/files/rotuwavoxudulakididifib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6404/7269/files/string_art_tutorial.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7361/0663/files/minecraft_pe_0._12._1_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9131/2288/files/26291990117.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0291/9074/files/java_ssl_debug.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_off00005f90.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F90 | 5288 bytes |
SHA-256: 4664d494959a5f5d2060c407ad07c2159631d148b3ba210e10f552ea1b3beb0a |
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font_01_sfnt_off0000716f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x716F | 10192 bytes |
SHA-256: ba25b06953692855ee6c3ff0770afaa73d9de17ed411509b2805b01e8e459d2d |
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font_02_sfnt_off00009481.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9481 | 16312 bytes |
SHA-256: 975089639afea594160f6daa1ae948ffc4125994d61a9fd32dce02580f7b6b15 |
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font_03_sfnt_off0000aa0c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAA0C | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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