MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, with one identified as a malicious redirector. The heuristic PDF_SEO_LINK_FARM indicates a mass external PDF link farm, suggesting a tactic to artificially inflate search engine rankings or distribute malicious content. The ML classifier strongly flagged this PDF as malicious. The primary malicious IOC is the redirector URL: https://ttraff.cc/pify?keyword=chimie+anorganica+nenitescu+pdf.
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=chimie+anorganica+nenitescu+pdf
- http://files.cheshireneuroactive.org/uploads/1/3/2/8/132815045/5706238.pdf
- http://files.michaelpiantadosi.com/uploads/1/3/1/3/131383771/sazasevuburepewoso.pdf
- http://files.stayfrosty.co/uploads/1/3/1/4/131411857/d09353f5390.pdf
- http://files.kristinvanrisseghem.com/uploads/1/3/0/7/130739227/wikupufudobidu.pdf
- https://cdn.shopify.com/s/files/1/0429/7474/0639/files/pokaruwuru.pdf
- https://cdn.shopify.com/s/files/1/0428/8937/9993/files/2004_honda_accord_manual.pdf
- https://cdn.shopify.com/s/files/1/0433/6202/5624/files/46041428417.pdf
- https://cdn.shopify.com/s/files/1/0430/8343/2096/files/dragon_age_arcane_warrior_build.pdf
- https://cdn.shopify.com/s/files/1/0439/1203/6520/files/tilorejuxogejan.pdf
- https://cdn.shopify.com/s/files/1/0432/9986/4734/files/18414806364.pdf
- https://cdn.shopify.com/s/files/1/0436/8482/3205/files/fuzikonezubimasujabo.pdf
- https://cdn.shopify.com/s/files/1/0440/5025/1941/files/3126821611.pdf
- https://cdn.shopify.com/s/files/1/0448/4068/1633/files/moral_character_letter.pdf
- https://cdn.shopify.com/s/files/1/0429/4171/0499/files/lujuvuzeme.pdf
- https://cdn.shopify.com/s/files/1/0431/3461/5708/files/vuluxazesupuwubajipana.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_off0000760c.bin025cfc06292d12c7b1dd2e5b6ae8185819c3024c7fccc2481391d9bba24f7e97 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x760C | 5440 bytes |
font_01_sfnt_off00008864.bin3c533517817ffc38993eedccfa1ed6acfb2cd0f0697c01a872801041340722a6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8864 | 11808 bytes |
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