MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF file contains a high number of embedded links, many of which point to a link farm designed for SEO manipulation. One critical heuristic firing indicates a direct link to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'physical and chemical change worksheet pdf' and the malicious URL, suggesting a lure to disguise the malicious intent. The ML classifier also 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.me/wix?keyword=physical+and+chemical+change+worksheet+pdf
- https://cdn.shopify.com/s/files/1/0429/5173/7498/files/cracked_tv_screen_prank.pdf
- https://cdn.shopify.com/s/files/1/0435/8003/1137/files/anatomy_upper_limb_questions_and_answers.pdf
- https://cdn.shopify.com/s/files/1/0429/2739/0887/files/50384736116.pdf
- https://cdn.shopify.com/s/files/1/0437/3420/4568/files/mubopilileketovenetosid.pdf
- https://static.usrfiles.com/ugd/ee4d88_c2f61969facd44a4b32ccf14d696c83e.pdf
- https://static.usrfiles.com/ugd/a838c0_47d68a2bc69c4f088c162ebc4573b3bf.pdf
- https://static.usrfiles.com/ugd/9d66c7_cdbc46c79b4f4c4d897e14cb2f7aac34.pdf
- https://static.usrfiles.com/ugd/c33cdb_1157388071254fb4ba073b5ac5422476.pdf
- https://static.usrfiles.com/ugd/3c2969_3fc0ac410277433d85c2f244aa5f7195.pdf
- https://static.usrfiles.com/ugd/cbe7f7_cf86141df6aa4cf49e752e935e08369d.pdf
- https://static.usrfiles.com/ugd/5262df_a583a5de47174abf8ec32c5609e02f72.pdf
- https://static.usrfiles.com/ugd/0cd3a8_bdddbec0b1674cda895c2de5fc68c98f.pdf
- https://cdn.shopify.com/s/files/1/0428/9419/6902/files/50670031904.pdf
- https://cdn.shopify.com/s/files/1/0427/4572/5094/files/golilepazezonen.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/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006198.bine741b0830039e48fc89628ddd26d3db5ea976c65f13278f389d1b8083659d9c7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6198 | 5828 bytes |
font_01_sfnt_off00007566.bin4651b17726eca4cb71d6a21c331f53fdb34281a467aff8a1a436fb915c97d04e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7566 | 10184 bytes |
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