MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link to a malicious redirector, which is part of a link farm designed to distribute numerous other PDF files. The document body, though heavily obfuscated, contains text related to an 'answer key' and the malicious URL, suggesting a lure to trick users into clicking the link. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=gizmo+student+exploration+tides+answer+key
- http://jaguk.pollyyuen.com/uploads/1/3/1/4/131407164/jukodatobuwegif.pdf
- http://files.trinityscholar.com/uploads/1/3/1/6/131636745/9003152.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0428/3917/9420/files/79833599402.pdf
- https://cdn.shopify.com/s/files/1/0431/5722/5638/files/tool_72826_songs.pdf
- https://cdn.shopify.com/s/files/1/0438/0976/7584/files/guided_imagery_definition_cancer.pdf
- https://cdn.shopify.com/s/files/1/0433/2653/7883/files/fovikunifoxaxujamiraziba.pdf
- https://cdn.shopify.com/s/files/1/0430/8143/3242/files/rearrange_pages_in_adobe_reader_11.pdf
- https://cdn.shopify.com/s/files/1/0428/4927/1975/files/all_functions_in_python.pdf
- https://cdn.shopify.com/s/files/1/0430/9378/6778/files/graphic_tablet_app_for_android.pdf
- https://cdn.shopify.com/s/files/1/0461/9206/6709/files/44593636256.pdf
- https://cdn.shopify.com/s/files/1/0431/8488/1825/files/61360418868.pdf
- https://cdn.shopify.com/s/files/1/0435/4097/1674/files/17537953625.pdf
- https://cdn.shopify.com/s/files/1/0427/9681/0396/files/class_10_maths_all_chapter_formula_download.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004667.bina2206d98d97d73ecb867700d60cef584d625b17f2cb8375a1f3b93aac3f9a288 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4667 | 5512 bytes |
font_01_sfnt_off00005938.bina5706f6c8b024bd45417bf0e65d1fa804ca81f61876f089595c62fa2300c85a3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5938 | 9720 bytes |
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