MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a link that redirects to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'balance chemical equations worksheet easy' and the malicious redirector URL. The PDF_SEO_LINK_FARM heuristic indicates a mass of external links, likely for SEO manipulation or to obscure the malicious destination. The ML_NYX_PDF_MALICIOUS 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=balance+chemical+equations+worksheet+easy
- http://files.doadagny.com/uploads/1/3/1/4/131455680/midinibuju.pdf
- https://cdn.shopify.com/s/files/1/0434/6265/6152/files/71552122934.pdf
- https://cdn.shopify.com/s/files/1/0433/3459/8809/files/30423900258.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dedapefe.pdf
- https://cdn.shopify.com/s/files/1/0432/4874/6651/files/67997239218.pdf
- https://cdn.shopify.com/s/files/1/0433/0638/5558/files/15191215236.pdf
- https://cdn.shopify.com/s/files/1/0428/4760/0807/files/sunazikotegebezakikawol.pdf
- https://cdn.shopify.com/s/files/1/0447/3788/8410/files/aptitude_test_questions_and_answers_of_tcs.pdf
- https://cdn.shopify.com/s/files/1/0428/5857/8086/files/wot_eu_forums.pdf
- https://cdn.shopify.com/s/files/1/0434/1307/8174/files/cooling_tower_maintenance_checklist.pdf
- https://cdn.shopify.com/s/files/1/0440/6181/9045/files/bu_jhansi_exam_date_2020_download.pdf
- https://cdn.shopify.com/s/files/1/0435/1718/2104/files/sajupofode.pdf
- https://cdn.shopify.com/s/files/1/0438/0455/7472/files/astm_steel_table.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_off00008332.bina60b5107d666882672165d1146aec8bc15c862cb66918c4cbd5a3f7ac7e05a7b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8332 | 5472 bytes |
font_01_sfnt_off000095ac.bine8f44afff9cf437356224484a15fd98f9b72327cea4bacdd48118b4aaca29b39 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x95AC | 10068 bytes |
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