MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded links, one of which points to a known malicious redirector. The document body, though heavily obfuscated, appears to be a lure for an educational worksheet. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm or SEO manipulation tactic. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent.
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/wix?keyword=finding+probability+worksheet
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://cdn.shopify.com/s/files/1/0431/1370/9722/files/12965342809.pdf
- https://cdn.shopify.com/s/files/1/0433/8450/4474/files/69861772009.pdf
- https://cdn.shopify.com/s/files/1/0431/7331/4715/files/kawubaxekogorolazubo.pdf
- https://cdn.shopify.com/s/files/1/0431/6492/6111/files/sociology_as_a_science_of_society.pdf
- https://cdn.shopify.com/s/files/1/0436/8993/5002/files/wirigasilotapelabofax.pdf
- https://cdn.shopify.com/s/files/1/0431/8245/6981/files/dofaje.pdf
- https://cdn.shopify.com/s/files/1/0434/2729/9478/files/idol_champ_quiz_answers_may_2019.pdf
- https://cdn.shopify.com/s/files/1/0432/6077/2516/files/phonics_world.pdf
- https://cdn.shopify.com/s/files/1/0431/0951/5425/files/gopugezozikagiraxesapew.pdf
- https://cdn.shopify.com/s/files/1/0430/9676/8665/files/alternate_exterior_interior_angles_worksheet.pdf
- https://static.usrfiles.com/ugd/b8c837_32d97ab57f0a47c9ab6851cf43d13cac.pdf
- https://static.usrfiles.com/ugd/b8c837_f0bbb218a3344a518b3ca18c344ff1bf.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005bb5.bin1204745c80efd76cce40b8809136815cb7995ffda6cf6d3ef845106b43894625 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5BB5 | 5364 bytes |
font_01_sfnt_off00006df5.binf31381d0aa91863c5ece879266bbd62b6f0bbd665d82d4695416b7b98d6462dd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DF5 | 10136 bytes |
font_02_sfnt_off000090b7.bin1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x90B7 | 4324 bytes |
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