MALICIOUS
192
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1566.002 Spearphishing Attachment
The PDF contains a deceptive call-to-action and numerous links to external PDF files, a common tactic for SEO poisoning and redirecting users to malicious sites. The primary URL, https://ttraff.ru/wb?keyword=download%20pdf%20instead%20of%20opening%20in%20browser%20html, is flagged as a malicious redirector. The document body and heuristics indicate a lure to download a PDF, likely to initiate a further malicious download or exploit. No scripts were extracted from this sample.
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=download%20pdf%20instead%20of%20opening%20in%20browser%20html In PDF document text
- http://files.quantummachinelearning.org/uploads/1/3/1/4/131438002/1f501d56aea6.pdfIn PDF document text
- http://files.mwcatlanta.org/uploads/1/3/1/4/131454126/jukikenu.pdfIn PDF document text
- http://files.preacherponderings.com/uploads/1/3/1/4/131437474/jajesuzimeg.pdfIn PDF document text
- http://files.sjvkailua.org/uploads/1/3/1/4/131437948/1f63444f7ad5aa.pdfIn PDF document text
- http://files.theplatteringco.com/uploads/1/3/1/3/131380236/5758568.pdfIn PDF document text
- http://files.jesusnotjesus.org/uploads/1/3/1/1/131164387/wojabusizamatex.pdfIn PDF document text
- http://files.littleladyo.com/uploads/1/3/0/9/130969004/furopigolijur.pdfIn PDF document text
- http://files.getwriteentertainment.com/uploads/1/3/1/6/131606271/2372858.pdfIn PDF document text
- http://files.elisebiersma.com/uploads/1/3/2/6/132695329/tudemegumebomi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://xolutibeju.files.wordpress.com/2020/07/70047474270.pdfIn PDF document text
- https://vewitoxu.files.wordpress.com/2020/06/23604690156.pdfIn PDF document text
- https://posuwobi.files.wordpress.com/2020/06/37175202318.pdfIn PDF document text
- https://wixulanax.files.wordpress.com/2020/07/93644838450.pdfIn PDF document text
- https://dowulito.files.wordpress.com/2020/07/25988070944.pdfIn PDF document text
- https://denorawe.files.wordpress.com/2020/07/wuluxepepewa.pdfIn PDF document text
- https://sofifetipi.files.wordpress.com/2020/06/36507537462.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58863311498.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/magej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bipifapokuwegi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/japoxotoruzub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94260126358.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bafewemuwidizisaj.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_off00006936.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6936 | 5476 bytes |
SHA-256: 23367316007eb6829602d522de0cea5fafb0bef7f249bbb38e1773502388c3b4 |
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font_01_sfnt_off00007bb7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7BB7 | 9760 bytes |
SHA-256: ad8426aa2efa56461070cc3d5ad5e94cadb9d2243e2bac0c33dc334a0ba778da |
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