MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
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 the URL and appears to be a lure for an annual report. 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.com/pify?keyword=hester+biosciences+ltd+annual+report
- http://files.katrinarecoveryquilts.org/uploads/1/3/2/6/132681758/9465931.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://cdn.shopify.com/s/files/1/0433/5131/0488/files/42314816775.pdf
- https://cdn.shopify.com/s/files/1/0430/8254/7361/files/tijoxixanezogotuxunaved.pdf
- https://cdn.shopify.com/s/files/1/0437/0425/4615/files/75401619422.pdf
- https://cdn.shopify.com/s/files/1/0428/8105/6931/files/87793366872.pdf
- https://cdn.shopify.com/s/files/1/0440/0345/9230/files/70869134174.pdf
- https://cdn.shopify.com/s/files/1/0431/4054/6721/files/xaxojo.pdf
- https://cdn.shopify.com/s/files/1/0431/8353/8331/files/basic_networking_concepts_book.pdf
- https://cdn.shopify.com/s/files/1/0429/2745/6419/files/world_oceans_map.pdf
- https://cdn.shopify.com/s/files/1/0428/3308/4575/files/vakokezuwafuzo.pdf
- https://cdn.shopify.com/s/files/1/0430/6904/6935/files/shark_canister_vacuum_manual.pdf
- https://cdn.shopify.com/s/files/1/0436/5670/8254/files/background_music_piano.pdf
- https://cdn.shopify.com/s/files/1/0431/3314/1149/files/schwing_stetter_batching_plant_m1.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b3d4.bin2eeab9a8597b05a2c5965aa743f7c97cc676a92bd168ce6269ba81ebd9154b13 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3D4 | 5048 bytes |
font_01_sfnt_off0000c4f1.bin246b5c5cd0e99a36960dec797dfc25241a4bfa6d522f1792aebaa8c006d0fa09 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC4F1 | 15288 bytes |
font_02_sfnt_off0000f3fb.bincd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3FB | 4324 bytes |
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