MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a link farm designed to appear as a SQL tutorial download, but the primary link redirects to a known malicious redirector. The PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics confirm the malicious intent. The ML classifier also strongly indicated maliciousness. The document body, though partially corrupted, contains the lure text and the malicious URL.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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.cc/wb?keyword=sql%20full%20tutorial%20pdf%20free%20download In PDF document text
- http://files.injectiondepot.ca/uploads/1/3/1/4/131452870/fuvula-xunelesejo.pdfIn PDF document text
- http://files.kimsalinassilva.com/uploads/1/3/0/8/130814868/5943582.pdfIn PDF document text
- http://files.cobilconnect.com/uploads/1/3/0/9/130969853/6ea8d66a.pdfIn PDF document text
- http://files.hlhas.com/uploads/1/3/1/4/131483550/wuvoxipepuzan.pdfIn PDF document text
- http://files.florencefoplodge210.com/uploads/1/3/1/3/131379951/5199302.pdfIn PDF document text
- http://files.makwawamalawi.com/uploads/1/3/2/7/132740860/zuder.pdfIn PDF document text
- http://files.risingravenband.com/uploads/1/3/1/3/131384018/buvab.pdfIn PDF document text
- http://files.suncoastsoul.com/uploads/1/3/1/3/131379612/baretanemomimu.pdfIn PDF document text
- http://files.4arrowsoutdoors.com/uploads/1/3/0/8/130814672/1910526.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://wudolatasuf.files.wordpress.com/2020/06/pifefemeb.pdfIn PDF document text
- https://sekaronokom.files.wordpress.com/2020/07/84953825168.pdfIn PDF document text
- https://niwujaregoz.files.wordpress.com/2020/06/luzezoxagafafapuros.pdfIn PDF document text
- https://xowubem.files.wordpress.com/2020/07/33349143872.pdfIn PDF document text
- https://jamofaj.files.wordpress.com/2020/06/70991604067.pdfIn PDF document text
- https://meretuzuwoj.files.wordpress.com/2020/07/dararifawaporexedil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wojilezufaguxulidumusad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71061356311.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85583151980.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/581871399.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53567737566.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nemevisofopanufu.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_off000061bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61BC | 5060 bytes |
SHA-256: a28249625af2f86fae2cdde664f858c2d8d1e8c5902671687286f031af41d2e7 |
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font_01_sfnt_off00007309.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7309 | 10304 bytes |
SHA-256: 61f51bbaa1143869e348baeeb62ee79333fdbccb0df5e2fc0f8b73a96770d789 |
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