MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to external resources, including a known malicious redirector. The document body, though heavily obfuscated, contains text related to worksheets and URLs that appear to be part of a link farm designed to attract traffic. The ML classifier strongly indicates maliciousness, supporting the conclusion that this is a phishing or redirection attempt.
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.com/pify?keyword=masculine+and+feminine+worksheets+for+grade+6
- http://files.davaocityproperties.com/uploads/1/3/1/4/131409309/jilubigat.pdf
- http://fiwire.defenseofthespecies.com/uploads/1/3/1/6/131606490/wusaziliv_gatikor_rezafutefip.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0427/8039/3639/files/zopepedeluxomin.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57790570823.pdf
- https://cdn.shopify.com/s/files/1/0436/5503/7093/files/48717023254.pdf
- https://cdn.shopify.com/s/files/1/0438/5662/5829/files/zodadi.pdf
- https://cdn.shopify.com/s/files/1/0427/8157/3279/files/zuzujebububerabifabadinik.pdf
- https://cdn.shopify.com/s/files/1/0428/7276/6631/files/big_data_hive_tutorial.pdf
- https://cdn.shopify.com/s/files/1/0436/0952/2339/files/7536818231.pdf
- https://cdn.shopify.com/s/files/1/0430/6976/7842/files/18641874142.pdf
- https://cdn.shopify.com/s/files/1/0433/2191/7598/files/excel_whole_sheet_greyed_out.pdf
- https://cdn.shopify.com/s/files/1/0433/1778/8830/files/36871894501.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_off000046d4.bin25787a7721a00f739f3ccaa24db53be95999d8caeaab8f6130c935a7ef480c3f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x46D4 | 5748 bytes |
font_01_sfnt_off00005a52.bin206cd92fe1f9465302d34cccbf29eb3b78880ee59a9c7b6d7a9c26b8c12437a0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A52 | 13568 bytes |
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