MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded links, many pointing to what appears to be a link farm designed to host academic-themed PDFs. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=spread+spectrum+modulation+in+digital+communication+pdf', suggesting a phishing or malware distribution attempt. The ML classifier also strongly indicated maliciousness.
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=spread+spectrum+modulation+in+digital+communication+pdf
- http://files.bakesterhistory.com/uploads/1/3/0/8/130874522/8b236742b5f7d05.pdf
- http://files.nanooknutrition.com/uploads/1/3/1/4/131437139/227512.pdf
- http://files.brandikphoto.com/uploads/1/3/1/8/131856173/pixivekokul-ralitejez.pdf
- http://files.nycea.org/uploads/1/3/1/4/131453170/nubekafexabul.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0428/0070/9791/files/nugulugufef.pdf
- https://cdn.shopify.com/s/files/1/0454/7723/2790/files/application_of_amperometry.pdf
- https://cdn.shopify.com/s/files/1/0428/7427/3948/files/english_phonics_books.pdf
- https://cdn.shopify.com/s/files/1/0448/0126/1730/files/ctet_2020_paper_1_question_paper.pdf
- https://cdn.shopify.com/s/files/1/0435/0060/1504/files/xinanakomenuxexudok.pdf
- https://cdn.shopify.com/s/files/1/0437/3990/6197/files/2017_pontiac_grand_prix.pdf
- https://cdn.shopify.com/s/files/1/0434/6642/4486/files/77993333960.pdf
- https://cdn.shopify.com/s/files/1/0428/5313/8591/files/bigusefodusenota.pdf
- https://cdn.shopify.com/s/files/1/0432/0280/5921/files/vimotawu.pdf
- https://cdn.shopify.com/s/files/1/0440/9150/6840/files/46490727727.pdf
- https://cdn.shopify.com/s/files/1/0431/1928/0288/files/54613767703.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007549.bin8bbed38a853205c98cf1cfc984716549277a929868d6081d3e7d67da827ee77d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7549 | 5580 bytes |
font_01_sfnt_off00008829.bina55d46a3b0cb5d348d337cc18b23f93bb0a7572f36553b9fa3c7fea67a6a7e6c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8829 | 9908 bytes |
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