MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains a URL that matches this redirector. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The primary malicious URL is likely intended to lead the user to a compromised site or phishing page.
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=ebook%20pinho%20calistenia%20pdf%20gratis
- http://files.nileshsp.com/uploads/1/3/0/7/130776655/rafemibolisijas.pdf
- http://files.ambleon.net/uploads/1/3/0/8/130814085/1225289.pdf
- http://files.cockburnarchitecture.co.uk/uploads/1/3/1/0/131070581/6307191.pdf
- https://cdn.shopify.com/s/files/1/0432/5172/8546/files/bizuzisenimivi.pdf
- https://cdn.shopify.com/s/files/1/0432/2246/6720/files/1981188893.pdf
- https://cdn.shopify.com/s/files/1/0433/6081/3208/files/20111140332.pdf
- https://cdn.shopify.com/s/files/1/0435/7426/3963/files/jivewokepapumonekup.pdf
- https://cdn.shopify.com/s/files/1/0431/5742/2229/files/kedanepopa.pdf
- https://cdn.shopify.com/s/files/1/0431/2373/6725/files/ludivovuxupixupegofo.pdf
- https://cdn.shopify.com/s/files/1/0433/9495/7466/files/84768833574.pdf
- https://cdn.shopify.com/s/files/1/0431/0879/4525/files/75367640526.pdf
- https://cdn.shopify.com/s/files/1/0432/7863/1072/files/mukujevada.pdf
- https://cdn.shopify.com/s/files/1/0428/0185/6668/files/96405865802.pdf
- https://cdn.shopify.com/s/files/1/0433/8178/4726/files/7736092076.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005df9.bin7c5ca46ad489e43919472a57e0d5771fac8839fd9f1ef7c57589405c409f4910 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5DF9 | 5368 bytes |
font_01_sfnt_off00007021.bin8810bcb29f8d8568edbf33b6c5c6163114f789287ddbbf7d9423199fe6cffb98 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7021 | 11992 bytes |
font_02_sfnt_off00009519.binad623bc7c681097dfa1224999cf6cc6072d3ca9a137655dc1129b0261f0b357c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9519 | 4324 bytes |
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