MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm and a critical redirector link pointing to ttraff.ru, which is known malicious infrastructure. The document body, though heavily obfuscated, contains the target URL and appears to be a lure related to sports news. The ML classifier strongly indicated maliciousness. The primary attack vector is likely social engineering via a malicious link embedded within the PDF.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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=bk+nets+bleacher+report In PDF document text
- http://lasekusa.midmichiganfamilyfun.com/uploads/1/3/0/7/130775432/504451.pdfIn PDF document text
- http://fuxumo.tfgflies.com/uploads/1/3/2/7/132740214/vadatowazojelalilo.pdfIn PDF document text
- http://files.americanfriendsofthefatherbashfoundation.org/uploads/1/3/1/4/131437311/rapilowas_kuwibamet.pdfIn PDF document text
- http://files.thecatandthecrystal.com/uploads/1/3/0/7/130775567/5fe9d5754a1074c.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6823/5675/files/34073710273.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6924/3549/files/7288492948.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6432/8345/files/aithihyamala_malayalam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1543/7468/files/dilebopinowifaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9411/4457/files/free_online_hidden_objects_games_no_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8393/0527/files/33680839003.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3153/5524/files/waxevuge.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3667/2162/files/vapunukobalibabiruvinefa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8089/3084/files/70226755914.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9133/6099/files/aprendizajes_clave_primero_de_primaria.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5663/6828/files/wezagekitaxowabasetuvera.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9597/2256/files/pizop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6482/8838/files/22273578698.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000083a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x83A3 | 5272 bytes |
SHA-256: 60459866d7688671afd1608aa7b89e8e61989b5b7effb95d34e864e4466cfb8d |
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font_01_sfnt_off00009585.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9585 | 10700 bytes |
SHA-256: cfd0933ff6fb285ab8b87abd08fe91c7e31f31c3ceb785c1850627ce644d68e2 |
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