MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or SEO manipulation tactic. One of the primary links, 'https://ttraff.ru/pify?keyword=organic+chemistry+vocabulary+pdf', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to this malicious URL and other PDF links, indicating an attempt to drive traffic to potentially harmful sites.
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=organic+chemistry+vocabulary+pdf
- http://files.jones106.com/uploads/1/3/0/7/130776386/9618b7f.pdf
- http://files.pharmacomedics.com/uploads/1/3/1/8/131857421/91be3a9.pdf
- http://zufotada.knikoletaylor.com/uploads/1/3/1/4/131406149/1993786.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0441/2011/3304/files/patofisiologi_avian_influenza.pdf
- https://cdn.shopify.com/s/files/1/0430/3205/1873/files/duke_s_anesthesia_secrets.pdf
- https://cdn.shopify.com/s/files/1/0428/4337/3735/files/nufatapum.pdf
- https://cdn.shopify.com/s/files/1/0433/3282/9342/files/vudakajomazegadamekaz.pdf
- https://cdn.shopify.com/s/files/1/0434/8510/2237/files/feripopitilidedemajad.pdf
- https://cdn.shopify.com/s/files/1/0435/3861/2378/files/el_ser_humano_biopsicosocial.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58933331969.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/11085861466.pdf
- https://cdn.shopify.com/s/files/1/0429/3348/5727/files/power_of_autosuggestion.pdf
- https://cdn.shopify.com/s/files/1/0444/0332/7142/files/xbmc_download_for_ipad.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_off00007639.bin512dfef1fcd1b1035de43933eb6820e37f97d5c9f85a8a59d8738873545af252 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7639 | 5900 bytes |
font_01_sfnt_off00008a1f.bin456c71005becbcb8f670db1f4dca4dde3d6bec646f08bccfd46af265755c1627 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A1F | 10064 bytes |
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