MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=netacad+chapter+9+exam+answers'. This URL is presented within the document body, suggesting a lure to trick users into clicking it. The PDF also exhibits characteristics of a link farm, with numerous external links. The ML classifier strongly flagged this PDF as malicious.
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=netacad+chapter+9+exam+answers In PDF document text
- http://files.hempsteadgirlstf.org/uploads/1/3/1/6/131636700/pefor-xesekupol-kipobose.pdfIn PDF document text
- http://files.ism-cu.com/uploads/1/3/2/7/132741029/worupubi-nomutuzam-vegojoberen.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/1/0429/8955/1770/files/fadinotisedugav.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8068/6491/files/download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7005/3784/files/wadaloduporufinixi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1092/4437/files/multithreading_in_c.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2965/9797/files/fasabebinili.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/1892/3686/files/ucla_biweekly_payroll_calendar_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1485/6610/files/64734859671.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1001/3853/files/nugukukogovawoxuzik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6851/2669/files/building_construction_technology_lecture_notes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9026/4742/files/37172300137.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2607/1199/files/61801297497.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3801/4616/files/bacteria_definicion.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_off00007e2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E2F | 5196 bytes |
SHA-256: cf0928831fb295b94b7ad853ca5553bd0c2911c1b88f546efbe4e1ed911fd68c |
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font_01_sfnt_off00008fbb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8FBB | 13624 bytes |
SHA-256: 6aaa9a1c5edf2dd6b4d9c52aefff9ab4d5daf2a2139007e9e45f2b0ed3074e45 |
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font_02_sfnt_off0000baee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBAEE | 4324 bytes |
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230 |
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