MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous links, many pointing to domains associated with SEO link farms, designed to obscure malicious redirectors. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/wb?keyword=vector%20addition%20and%20subtraction%20worksheet%20pdf'. The document body, though heavily obfuscated, contains text related to 'vector addition and subtraction worksheet pdf', suggesting a lure to disguise the malicious intent. The ML classifier strongly supports the malicious verdict.
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/wb?keyword=vector%20addition%20and%20subtraction%20worksheet%20pdf In PDF document text
- http://files.theturquoisepalms.com/uploads/1/3/0/7/130776291/771643.pdfIn PDF document text
- http://files.faithutah.com/uploads/1/3/1/4/131483343/6805518.pdfIn PDF document text
- http://files.gsjministries.com/uploads/1/3/0/7/130776573/935417.pdfIn PDF document text
- http://files.schaumburgpaintingpros.com/uploads/1/3/1/4/131453251/xuwerimijafuse_tusix.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/1/0432/5320/3102/files/gebefakenomu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9782/6207/files/sejaridenozukinofago.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6905/3854/files/76958613178.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8576/5533/files/35182602973.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8648/7455/files/logubilipuwosopakig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0938/4343/files/asciidoc_to.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1785/4373/files/42786147530.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8491/4583/files/gomatajonagekirizoj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6871/0300/files/sawadomef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3506/5505/files/13294330963.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9032/2342/files/45123605864.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8993/5002/files/monkey_madness_osrs.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0443/8907/3062/files/hebrew_bible_translation_to_english.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5668/5468/files/fofefi.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000047a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x47A6 | 5472 bytes |
SHA-256: a5dcb2f5bd3a90d600774ef46a468e1d8217c2449f5a6571c30f1150e0bd84a7 |
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font_01_sfnt_off00005a53.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A53 | 9064 bytes |
SHA-256: d13582b5ee0f0dd91ec583a0e4efb930303cbb2533c4f6e9e86997e0575d0f91 |
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