MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains numerous links, including one pointing to a known malicious redirector infrastructure at 'ttraff.cc'. The document body, though heavily obfuscated, contains text related to 'Rectangular array worksheets 4th grade' and the malicious URL, suggesting a lure to disguise the malicious intent. The presence of a link farm and the ML classifier's high confidence indicate malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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/pify?keyword=rectangular+array+worksheets+4th+grade
- http://minasag.royalpawsmobilegrooming.com/uploads/1/3/0/9/130969723/cdb1701a236.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/8669/1998/files/33106860042.pdf
- https://cdn.shopify.com/s/files/1/0431/1384/0793/files/28926707123.pdf
- https://cdn.shopify.com/s/files/1/0432/0323/1908/files/derapamezatowusopofu.pdf
- https://cdn.shopify.com/s/files/1/0438/2480/8096/files/zerijine.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20424522606.pdf
- https://cdn.shopify.com/s/files/1/0429/6730/2303/files/calendario_escolar_2020_a_2020_para_imprimir.pdf
- https://cdn.shopify.com/s/files/1/0434/0783/5293/files/voxim.pdf
- https://cdn.shopify.com/s/files/1/0432/2210/6271/files/comment_assembler_des_gratuitement.pdf
- https://cdn.shopify.com/s/files/1/0431/8239/1451/files/68796280235.pdf
- https://cdn.shopify.com/s/files/1/0437/8794/4094/files/xipepikepelenu.pdf
- https://cdn.shopify.com/s/files/1/0430/7098/0247/files/rojerotiwolisizal.pdf
- https://cdn.shopify.com/s/files/1/0431/2920/8992/files/bach_fugue_g_minor.pdf
- https://cdn.shopify.com/s/files/1/0429/7873/8335/files/gopam.pdf
- https://cdn.shopify.com/s/files/1/0435/2396/5079/files/dugufakimo.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004478.bin289d7d4f23354994bee8f85e0e5573b878988bc32f7aa9f03e1538137bf3a82b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4478 | 5556 bytes |
font_01_sfnt_off00005774.binc4bfbfb8e3918c13f72e83d0af1a562c0baf09b5cf2caef4221667b8d1b9e35a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5774 | 9640 bytes |
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