MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wb?keyword=pyr%20pam%20bula%20pdf%20anvisa'. Additionally, another critical heuristic indicates a PDF link farm, with the first URL being 'https://cdn.shopify.com/s/files/1/0434/0776/9750/files/70575899977.pdf'. The ML classifier also strongly flagged this PDF as malicious. The document body contains obfuscated text and embedded URLs, reinforcing the malicious intent.
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/wb?keyword=pyr%20pam%20bula%20pdf%20anvisa
- http://files.ccrestore.org/uploads/1/3/0/9/130969944/3253899.pdf
- http://files.orleanstrailresort.com/uploads/1/3/0/7/130775232/1800450.pdf
- http://files.libbyyouthsoccer.org/uploads/1/3/1/4/131483097/devemumisepob.pdf
- https://cdn.shopify.com/s/files/1/0434/0776/9750/files/70575899977.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kitona.pdf
- https://cdn.shopify.com/s/files/1/0431/1675/7153/files/wokerotiputovipefumum.pdf
- https://cdn.shopify.com/s/files/1/0432/6211/6008/files/nularalinegowalosilupip.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35209966956.pdf
- https://cdn.shopify.com/s/files/1/0433/1631/4277/files/xokokikoponafoneb.pdf
- https://cdn.shopify.com/s/files/1/0435/4742/6965/files/13692041030.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jamitaribigonekadori.pdf
- https://cdn.shopify.com/s/files/1/0430/7684/5728/files/63582028643.pdf
- https://cdn.shopify.com/s/files/1/0438/7789/2251/files/40405938916.pdf
- https://cdn.shopify.com/s/files/1/0434/1104/6556/files/92299689289.pdf
- https://cdn.shopify.com/s/files/1/0438/6878/2757/files/59412571588.pdf
- https://cdn.shopify.com/s/files/1/0429/8421/0583/files/8437621112.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_off00005ee5.bind66a0762ac892a90fd54f3e66918dd10ffc66a963c6fe49451939b20b970755d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EE5 | 5488 bytes |
font_01_sfnt_off00007178.bin8b7f20c2302774867c1bcb6ea0e16c1cd8bfec3447962fb8925c6fad821ad87d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7178 | 13328 bytes |
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