MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a 'determiners worksheet for class 9'. The PDF also contains a link farm pointing to numerous PDFs, suggesting a SEO-based distribution tactic. The ML classifier strongly flagged this PDF as malicious.
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=determiners+worksheet+for+class+9
- http://getota.cameliascandles.com/uploads/1/3/2/7/132740900/wokajukusax_muwotukafaku_movumenuw.pdf
- http://files.isakpronepal.org/uploads/1/3/0/7/130738850/jenusaxofixapu-banole-wepene-xofewafijut.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0435/1541/2632/files/64467419914.pdf
- https://cdn.shopify.com/s/files/1/0431/2491/6388/files/1564277312.pdf
- https://cdn.shopify.com/s/files/1/0434/7192/9496/files/komajimo.pdf
- https://cdn.shopify.com/s/files/1/0431/2937/2821/files/wolitilafemivudoluzepipul.pdf
- https://cdn.shopify.com/s/files/1/0438/6743/9264/files/kekiruzixowofopepa.pdf
- https://cdn.shopify.com/s/files/1/0435/7983/4531/files/bhagavatam_in_english.pdf
- https://cdn.shopify.com/s/files/1/0430/6377/1293/files/nalajotikiwawuzevumuloda.pdf
- https://cdn.shopify.com/s/files/1/0430/5590/6973/files/audacity_for_android_mobile.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_off00006b23.bine2ed2d0d03766714c5f62d3d89f9c707e9ca62f0a9fb3c5d042995cddf65a285 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B23 | 5432 bytes |
font_01_sfnt_off00007d83.bine8682180dd21f965203569666758888608ec14f2bdf9646fc4d694c595f6bb2d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D83 | 10192 bytes |
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