MALICIOUS
192
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 PowerShell
The PDF document contains numerous embedded links designed to lead users to malicious redirectors, masquerading as a catalogue or invoice. The heuristic firings indicate a deliberate attempt to create a link farm for SEO poisoning, directing users to potentially harmful content. The primary malicious URL identified is https://ttraff.com/wb?keyword=tsubaki%20chain%20coupling%20catalogue%20pdf.
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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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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.com/wb?keyword=tsubaki%20chain%20coupling%20catalogue%20pdf In PDF document text
- http://files.iphonerepair-inlosangeles.com/uploads/1/3/1/4/131455463/5816b826bd111.pdfIn PDF document text
- http://files.headstockofwoodstock.com/uploads/1/3/0/7/130739107/gabuwuninufe_mupivokulen_golil.pdfIn PDF document text
- http://files.georgiabullochcsb.com/uploads/1/3/1/3/131383305/vazular_tozajepe_potezivo.pdfIn PDF document text
- http://files.codyrooney.com/uploads/1/3/1/3/131398281/9994185.pdfIn PDF document text
- http://files.stitchedwithcare.com/uploads/1/3/1/3/131383624/dowumi-wefudazebukop-wivavin-tajewowe.pdfIn PDF document text
- http://files.schombergcommunityfarm.ca/uploads/1/3/1/3/131380868/c3c31a37f78ec7.pdfIn PDF document text
- http://files.gatewoodgraphics.com/uploads/1/3/0/8/130874647/rejutimuvapasise.pdfIn PDF document text
- http://files.aarongomezmakeupartist.com/uploads/1/3/0/9/130970014/6906122.pdfIn PDF document text
- http://files.domaplasma.com/uploads/1/3/1/1/131164534/gifuwubumip.pdfIn PDF document text
- http://files.simplywood.com.au/uploads/1/3/1/4/131452803/8d47d21a.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://lusotadefel.files.wordpress.com/2020/06/98319849822.pdfIn PDF document text
- https://taloxufig.files.wordpress.com/2020/07/27346035861.pdfIn PDF document text
- https://nulogep.files.wordpress.com/2020/07/rugarefudusakuni.pdfIn PDF document text
- https://liwigevaba.files.wordpress.com/2020/06/74565422670.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kupenase.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wexidemunuviviradepinitim.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13170590630.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wifufokamavobopizevotug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48054684450.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23535065851.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_off00006264.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6264 | 5356 bytes |
SHA-256: 1f7806963f76e821507a25bea215325b4a58865f01eb0c7fdbbc66080d8f3713 |
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font_01_sfnt_off00007482.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7482 | 13476 bytes |
SHA-256: 47f0fc707f64a1490701410259838f42698a83a6089d6d431207b55122b5fd93 |
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