MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL for the malicious redirector and other URLs that appear to be part of a link farm. This suggests the primary goal is to redirect users to malicious infrastructure.
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://traffmen.ru/123?keyword=esl+past+tense+irregular+verbs+worksheets In PDF document text
- https://pivamaxisogen.weebly.com/uploads/1/3/4/4/134481881/buvudujifazib.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387033/normal_5fa670136da4c.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/falufusu/rukumowumugosilojan.pdfIn PDF document text
- https://s3.amazonaws.com/buganabowumujef/urc_a6_manual.pdfIn PDF document text
- https://rezekine.files.wordpress.com/2020/11/tatojesanawav.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4b4768d6-6f67-4d68-95cd-55e9b57b3047/movkin_disguiser_instructions.pdfIn PDF document text
- https://papirekowu.files.wordpress.com/2020/11/nopumaline.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a8d74ccf-e9b7-4c92-8945-354e8f68e509/samsung_ml-2525w_setup.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/89491dc8-896e-4e2e-9155-dac61ac762db/jukibejirupu.pdfIn PDF document text
- https://s3.amazonaws.com/fizaxo/33731347816.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/48e01782-55ad-4c44-8975-15071167a579/the_official_sat_study_guide_2018_edition_free_download.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005ac3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5AC3 | 5392 bytes |
SHA-256: efa046b358436a92984802ba0ea99d2bb870d87c4a739427ec1e1b90a870796d |
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font_01_sfnt_off00006d2d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D2D | 10332 bytes |
SHA-256: db45afda66077d0560113d0f06f1e2412037952468d4f4a939fa9b215f8bef21 |
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