MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, with a critical heuristic identifying it as a redirector link to malicious infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.club/pify?keyword=apostila+tecnico+em+laboratorio+de+a', which is also flagged as malicious. The presence of a large number of external PDF links suggests a link farm, potentially for SEO manipulation or to distribute further malicious content.
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.club/pify?keyword=apostila+tecnico+em+laboratorio+de+a
- http://files.lifecoach-sacramento.com/uploads/1/3/2/8/132814468/7380723.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/3264/9636/files/48918729613.pdf
- https://cdn.shopify.com/s/files/1/0430/6989/8909/files/82034818027.pdf
- https://cdn.shopify.com/s/files/1/0434/9755/4084/files/muwifezogatimizasuriroze.pdf
- https://cdn.shopify.com/s/files/1/0435/7026/6273/files/cronica_de_una_muerte_anunciada_pers.pdf
- https://cdn.shopify.com/s/files/1/0438/3378/6528/files/14175752020.pdf
- https://cdn.shopify.com/s/files/1/0440/9557/0072/files/54978801369.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61066914906.pdf
- https://cdn.shopify.com/s/files/1/0430/8946/1410/files/24987913052.pdf
- https://cdn.shopify.com/s/files/1/0429/7110/3395/files/panolotisiwepexosav.pdf
- https://cdn.shopify.com/s/files/1/0434/4043/9446/files/23019531268.pdf
- https://cdn.shopify.com/s/files/1/0431/6558/1469/files/autodesk_maya_2013_free.pdf
- https://cdn.shopify.com/s/files/1/0429/0484/6503/files/sowodesumu.pdf
- https://cdn.shopify.com/s/files/1/0432/9403/2025/files/67140661970.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_off00007045.bine5108e78277e0dc0a439ff7dd1c1e443a8d49bc1752fc591c199cbba209a7aef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7045 | 5348 bytes |
font_01_sfnt_off00008247.binf81d556878cfca93651467b142ef9409324ed60a1e2f0246366169a265206bcd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8247 | 13536 bytes |
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