MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs pointing to other PDF files, indicating a link farm designed to manipulate search engine results or distribute content. One URL, https://ttraff.com/wb?keyword=area%20and%20circumference%20of%20a%20circle%20word%20problems%20worksheet, is identified as a known malicious redirector. The ML classifier also strongly flagged this PDF as malicious.
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.com/wb?keyword=area%20and%20circumference%20of%20a%20circle%20word%20problems%20worksheet In PDF document text
- http://files.curetypeone.com/uploads/1/3/1/3/131380121/dadf492e7ec13e.pdfIn PDF document text
- http://files.bigoakfarms.net/uploads/1/3/1/6/131606280/jadepopa_mekolojo_susise.pdfIn PDF document text
- http://files.mhsrunningtribe.com/uploads/1/3/0/9/130969046/2af9b84d0.pdfIn PDF document text
- http://files.lakeareatidbits.com/uploads/1/3/1/3/131383383/e5e72f.pdfIn PDF document text
- http://files.l4designbuild.com/uploads/1/3/0/9/130969992/vojizit.pdfIn PDF document text
- http://files.corhartselle.org/uploads/1/3/1/4/131438150/c19fe1.pdfIn PDF document text
- http://files.pinegrovecogop.org/uploads/1/3/0/8/130874318/de351d21ce3806f.pdfIn PDF document text
- http://files.firstathens.org/uploads/1/3/2/7/132710687/9347935.pdfIn PDF document text
- http://files.pathsforwholeness.com/uploads/1/3/2/7/132741181/80770fca107baf0.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://fiwojinugir.files.wordpress.com/2020/06/51173552534.pdfIn PDF document text
- https://laxosuval.files.wordpress.com/2020/07/57501937153.pdfIn PDF document text
- https://wepubutapov523926748.files.wordpress.com/2020/07/4129168577.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xigidewepiwunabifaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/39858795743.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/22650439267.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kefemomorevogik.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000063b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63B4 | 5564 bytes |
SHA-256: 6c1af8ed874c171e16d83c4c417150c3a23f2577e278064e4018d8f11dfb5542 |
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font_01_sfnt_off0000766e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x766E | 10680 bytes |
SHA-256: a77bf87a0cf8aaff52895380f98f1efe239b56589fef1da0b53cb7692ac7f7c8 |
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font_02_sfnt_off00009b26.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9B26 | 16324 bytes |
SHA-256: 8fc4bdb6d230b8de5b4cd572f0ea9af8610b804e36dd471692395ea844a04b06 |
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