MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One of these links redirects to a known malicious URL (ttraff.ru), indicating a potential phishing or malware distribution attempt. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious link farm.
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=ingenieria+ambiental+henry+heinke+pdf
- http://files.caumorgans.com/uploads/1/3/1/8/131856212/vanifawa-siwuromet-lonaluz.pdf
- http://gomusil.idfva.org/uploads/1/3/0/7/130739726/f97d91212b9756.pdf
- http://files.archieparnell4congress.com/uploads/1/3/0/7/130775379/vomibazoti.pdf
- http://files.monarch-therapy.us/uploads/1/3/0/7/130775840/6923160.pdf
- http://files.handmadebylouisa.com/uploads/1/3/0/7/130775827/25f7f89e987e0.pdf
- https://cdn.shopify.com/s/files/1/0427/4978/8327/files/40767252389.pdf
- https://cdn.shopify.com/s/files/1/0429/8643/8807/files/apostila_de_curso_de_violo_em_gratis.pdf
- https://cdn.shopify.com/s/files/1/0427/8360/4903/files/gdb_cheat_sheet.pdf
- https://cdn.shopify.com/s/files/1/0433/5819/1768/files/health_effects_of_noise_pollution.pdf
- https://cdn.shopify.com/s/files/1/0440/4976/0406/files/18732874817.pdf
- https://cdn.shopify.com/s/files/1/0429/7284/0090/files/97631626740.pdf
- https://cdn.shopify.com/s/files/1/0433/1261/1481/files/amulet_book_8_supernova.pdf
- https://cdn.shopify.com/s/files/1/0429/3351/8489/files/35630214434.pdf
- https://cdn.shopify.com/s/files/1/0432/3393/5519/files/cheap_cheer_uniforms_uk.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004480.bina7a9b7d03bc9cb0922bb0663d7b249269ef0acf87358ae25e92290214198a1db |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4480 | 5196 bytes |
font_01_sfnt_off000055f7.bin8e49668e5e645dcb8384c1f6f4e0e0085c1c0c26521b7c87b56db0f8993610ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x55F7 | 8952 bytes |
font_02_sfnt_off000074a5.bin9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74A5 | 4324 bytes |
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