MALICIOUS
162
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm and a malicious redirector URL, indicating an attempt to lead users to malicious content. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure for educational materials. The ML classifier 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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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.com/pify?keyword=printable+letters+worksheets+for+kindergarten
- http://bemak.bettysbunch.com/uploads/1/3/0/8/130874197/lepovu_ronolajenigap.pdf
- http://files.whipcityshields.com/uploads/1/3/1/4/131483249/pekujoresunodas.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/7710/7865/files/bhagavad_gita_as_it_is_english.pdf
- https://cdn.shopify.com/s/files/1/0432/7014/4155/files/13102572757.pdf
- https://cdn.shopify.com/s/files/1/0432/3124/8542/files/69739989475.pdf
- https://cdn.shopify.com/s/files/1/0434/1320/9246/files/soraleboxaxuruz.pdf
- https://cdn.shopify.com/s/files/1/0433/0618/8955/files/56435749604.pdf
- https://cdn.shopify.com/s/files/1/0434/8539/7152/files/blood_relation_with_answers.pdf
- https://cdn.shopify.com/s/files/1/0430/5554/6517/files/nulogoverevezalegogilupim.pdf
- https://cdn.shopify.com/s/files/1/0431/9281/1681/files/73161906183.pdf
- https://cdn.shopify.com/s/files/1/0432/6539/2804/files/daxusuxakifew.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_off00006181.bin96efb51654b0d78b4c79bed321d34495f90f5ad56dc9e174da2ee6258c397a85 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6181 | 5464 bytes |
font_01_sfnt_off00007418.binab0b67cb36d10ce947f83b49a4cf9bda5a32a15e89ab3a35eea56683aa1b0bb0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7418 | 10144 bytes |
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