MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=expanding+double+brackets+surds+worksheet'. This URL is presented within the document body, suggesting a social engineering lure to trick the user into clicking it. The file also exhibits characteristics of a link farm, with numerous external PDF links, further supporting a malicious intent to redirect users to potentially harmful 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.ru/pify?keyword=expanding+double+brackets+surds+worksheet In PDF document text
- http://files.sasbirdclub.com/uploads/1/3/1/3/131382406/2884174.pdfIn PDF document text
- http://files.aging-success.com/uploads/1/3/1/0/131069812/fumapodepidi-duzuju-favele.pdfIn PDF document text
- http://files.powermilers.org/uploads/1/3/2/6/132680827/sakosemonatimozo.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/1/0433/8561/8583/files/35128604981.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1036/5339/files/open_source_church_management_software.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8119/5927/files/love_on_the_brain_saxophone_sheet_music.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0947/2669/files/32409890761.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1606/1091/files/lijajatinowamimivede.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8857/6661/files/21531511345.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9861/2636/files/netawajuzomidixe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9471/9131/files/nesufilowarerejavazoves.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1028728638.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5206/4155/files/python_book_for_advanced_programmers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4244/6231/files/remote_front_end_developer_jobs.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6785/9359/files/18803656753.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_off00008072.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8072 | 5540 bytes |
SHA-256: 5c9dff0cdac2648e644934d0b3fdc5e5cc08a00f46fa70c2f7858324f67b1459 |
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font_01_sfnt_off0000934a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x934A | 14132 bytes |
SHA-256: afcaa01679eafc4edf58dae5467c22bb1360e6d582b28dc5b1bb15647d28330e |
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font_02_sfnt_off0000bf6b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF6B | 4324 bytes |
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230 |
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