MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=problemas+razonados+para+segundo+de'. This URL is presented within the document body, disguised as a link to an academic PDF. The presence of numerous other PDF links, many pointing to potentially compromised or malicious domains, further supports a link farm or redirection attack. 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.cc/pify?keyword=problemas+razonados+para+segundo+de
- http://vesufomon.dominiquelegendre.com/uploads/1/3/1/4/131438216/3532910.pdf
- http://files.nirvanatails.net/uploads/1/3/1/8/131871849/484192.pdf
- http://files.acuartistry.com/uploads/1/3/0/7/130775471/bezosiruvugawijawov.pdf
- http://lopebuneg.catherinehertl.com/uploads/1/3/1/1/131164243/5455993.pdf
- https://cdn.shopify.com/s/files/1/0428/5346/6271/files/fundamentals_of_bookkeeping_accounting.pdf
- https://cdn.shopify.com/s/files/1/0454/8034/5750/files/o_reilly_python_free.pdf
- https://cdn.shopify.com/s/files/1/0428/4180/0860/files/brain_edema_treatment.pdf
- https://cdn.shopify.com/s/files/1/0435/1898/4352/files/busqueda_y_recoleccion_de_informacion.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/banefidofekadozimodomi.pdf
- https://cdn.shopify.com/s/files/1/0430/0252/7895/files/21635047109.pdf
- https://cdn.shopify.com/s/files/1/0434/1887/8114/files/ba_1st_year_geography_book_download.pdf
- https://cdn.shopify.com/s/files/1/0451/6813/2250/files/16451964523.pdf
- https://cdn.shopify.com/s/files/1/0430/6970/2305/files/ziligalodudebokixaromije.pdf
- https://cdn.shopify.com/s/files/1/0434/5580/7654/files/pades.pdf
- https://cdn.shopify.com/s/files/1/0429/1415/2607/files/acquisitions_incorporated_d_d.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_off00004d90.bin79d677d37a050d27b78d0cf100dea6e506c83ae451c51d7fc3d967c2da90cf3d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4D90 | 5472 bytes |
font_01_sfnt_off00006009.bin38a76d7fe962152fb104941deb35b6835d7369e4f67c2c5ec605a7853d43bdb4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6009 | 11080 bytes |
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