MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many pointing to external PDF files hosted on various domains. One critical heuristic identified a link to known malicious redirector infrastructure. The ML classifier strongly indicated maliciousness. The document body, though obfuscated, contains the text 'Variable aleatoria binomial pdf' and the malicious URL, suggesting a lure to a phishing or malware distribution site.
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=variable%20aleatoria%20binomial%20pdf In PDF document text
- http://files.pianolessonsbyjulie.com/uploads/1/3/1/3/131380868/59baef08.pdfIn PDF document text
- http://files.lifeandentertainment.com/uploads/1/3/2/7/132740398/rarewafoku.pdfIn PDF document text
- http://files.sanctuaries.org/uploads/1/3/1/8/131856443/jebegesogitesol.pdfIn PDF document text
- http://files.bishopgumbleton.com/uploads/1/3/1/3/131379371/tokasinipegog.pdfIn PDF document text
- http://files.lochgoin.com/uploads/1/3/1/6/131607239/gutexal.pdfIn PDF document text
- http://files.tonypalermolifecoach.com/uploads/1/3/1/4/131437740/eaf0f757.pdfIn PDF document text
- http://files.metalmeltdown.com/uploads/1/3/0/7/130775755/36f932b68a.pdfIn PDF document text
- http://files.paiboon.biz/uploads/1/3/1/4/131406762/1208977.pdfIn PDF document text
- http://files.leaderboxessentials.com/uploads/1/3/0/7/130775172/1436979.pdfIn PDF document text
- http://files.lorraineparishwriter.com/uploads/1/3/0/8/130873870/lobojixo.pdfIn PDF document text
- http://files.domaplasma.com/uploads/1/3/1/1/131164534/gifuwubumip.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://favajozavabi.files.wordpress.com/2020/06/bexiturewotavurejetoxuw.pdfIn PDF document text
- https://sewogadugabo.files.wordpress.com/2020/07/woselifegekevifaleranu.pdfIn PDF document text
- https://wejofokil.files.wordpress.com/2020/07/65555327658.pdfIn PDF document text
- https://zasajeloso685135112.files.wordpress.com/2020/06/95842604132.pdfIn PDF document text
- https://bivugon.files.wordpress.com/2020/06/daronawewotosuxo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xiguxalenagidofivixonagez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/17721531589.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/44603331863.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lufixupiz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28650507632.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000810f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x810F | 3380 bytes |
SHA-256: e7fcce69d1a25d106c6b0cacf9c7c496933c364ebfbc2c44e6150c50f5fb08d6 |
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font_01_sfnt_off00008d2c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D2C | 4904 bytes |
SHA-256: 0e393c1fb54619a370bfc525f3626551a78f55773a62debe98ec3bdbd8c15bd0 |
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font_02_sfnt_off00009db0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9DB0 | 11880 bytes |
SHA-256: 00a7adeb6f8514c20ad6461638cd09876a7c0449101693c203d8778798e44f48 |
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