MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a significant number of embedded links, with one identified as a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body appears to be obfuscated or corrupted, but the presence of numerous links suggests a link farm or redirection strategy to deliver malicious content. The primary IOC is the redirector URL.
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/pify?keyword=chickamauga+fishing+report
- http://files.brendagratton.com/uploads/1/3/2/3/132302966/b6d30e.pdf
- http://files.gammaetaomegaaka.org/uploads/1/3/1/6/131636990/5608641.pdf
- http://zudidewav.cielocastlepines.com/uploads/1/3/0/9/130968984/2569524.pdf
- https://cdn.shopify.com/s/files/1/0438/7926/8520/files/vivaxebaruleturakaw.pdf
- https://cdn.shopify.com/s/files/1/0430/4653/5322/files/bcg_matrix_of_coca_cola.pdf
- https://cdn.shopify.com/s/files/1/0435/3009/2712/files/advertising_printing_company_profile.pdf
- https://cdn.shopify.com/s/files/1/0434/4994/2172/files/fikoxebomutemod.pdf
- https://cdn.shopify.com/s/files/1/0432/9088/6312/files/information_security_news_site.pdf
- https://cdn.shopify.com/s/files/1/0465/0608/2454/files/laundry_symbols_chart.pdf
- https://cdn.shopify.com/s/files/1/0432/1204/6491/files/human_physiology_by_ak_jain.pdf
- https://cdn.shopify.com/s/files/1/0434/0088/8469/files/jugutoxajanusagivupara.pdf
- https://cdn.shopify.com/s/files/1/0436/9648/8613/files/wetubaranasofavozak.pdf
- https://cdn.shopify.com/s/files/1/0461/8148/2650/files/camstudio_video_editor_free.pdf
- https://cdn.shopify.com/s/files/1/0432/6516/3422/files/buwajixilezeripotuwa.pdf
- https://cdn.shopify.com/s/files/1/0435/2029/5064/files/gufefigijenopalovetarukej.pdf
- https://cdn.shopify.com/s/files/1/0440/1519/0181/files/93415761702.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_off000065a8.bin2e6ac3ef8c49c2a80a93c1ceed453ffda25a1b6845224519dc16694be0e876b0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65A8 | 5364 bytes |
font_01_sfnt_off000077c1.bin235584fc354615b125f4d7b0d454788ad7aa55966ecde9c8b8e5a9f654d099d1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77C1 | 10456 bytes |
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