MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links, with one identified as a known malicious redirector. The document body, though heavily obfuscated, appears to contain text related to educational worksheets, suggesting a lure to trick users into clicking the malicious link. The presence of multiple external PDF links also indicates a link farm, likely for SEO manipulation or to host further malicious content.
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.ru/wix?keyword=cell+membrane+images+worksheet+answers+biology+corner
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://2afbb574-d1dd-41fa-840f-33368810c0ed.filesusr.com/ugd/77d535_e2cd528c3b0f4c20b79eacc493a01406.pdf?index=true
- https://73338a0e-3402-4a1d-98b6-ab859cd71f1a.filesusr.com/ugd/18ee90_462db916ca454459bb405ddf47419246.pdf?index=true
- https://2451fb4b-b0fc-4f37-bd41-1440d4b2f55a.filesusr.com/ugd/6d59ab_b7563ab49e854287bb118ede9d96b600.pdf?index=true
- https://9558e0c6-a11b-4516-bedc-05c166727ac0.filesusr.com/ugd/ff2e72_e3b6d5247fb2476eadbdd4026615fc67.pdf?index=true
- https://ccca35f4-4a95-4fff-8195-452a925a615a.filesusr.com/ugd/41f880_705fbb8bb1f04e4890bf5c2bc744e117.pdf?index=true
- https://d97901e6-d8f2-4adf-9e8a-c86053e5ad6f.filesusr.com/ugd/12daa7_7ed122d3981f4513a42ccc084b190b76.pdf?index=true
- https://bbdf1b81-4e7c-42f1-869a-b5d4ffe9e7cc.filesusr.com/ugd/96768c_7207344f82b34e33a8733f5896974adb.pdf?index=true
- https://cdn.shopify.com/s/files/1/0437/8329/1029/files/a_level_sociology_aqa_textbook.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78985131446.pdf
- https://cdn.shopify.com/s/files/1/0430/7134/0698/files/rubisuwogu.pdf
- https://cdn.shopify.com/s/files/1/0440/0611/3430/files/xawawegibekam.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_off0000f17f.binc92d55c4d4b69e8fc543854bbcc4d7e9312318c77144f7e9164d10f15d761ac1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF17F | 5516 bytes |
font_01_sfnt_off00010425.bin17bedc3f7de60915ff2a23bfce8e026eb42f0aa4425b7076626e22a158904ff1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10425 | 13636 bytes |
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