MALICIOUS
150
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to external resources, a technique often used for SEO poisoning or to redirect users to malicious sites. One such link, 'https://ttraff.cc/wb?keyword=simplifying%20radical%20expressions%20worksheet%20answers', is identified as a malicious redirector. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains references to the malicious URL and other PDF links, suggesting a coordinated effort to distribute malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 3
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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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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/wb?keyword=simplifying%20radical%20expressions%20worksheet%20answers
- http://files.fhacaurora.org/uploads/1/3/0/7/130776511/badavi-jinugap-midupeweg.pdf
- http://files.mr-stevens.com/uploads/1/3/0/7/130776864/zoxakaso.pdf
- http://files.healthnotwealth.co.uk/uploads/1/3/0/8/130874495/8ea4984.pdf
- http://files.sawmlian.com/uploads/1/3/1/6/131607712/vutejepasaratoz_nikan.pdf
- https://cdn.shopify.com/s/files/1/0437/3164/8661/files/rebanijiforulapoxiwezon.pdf
- https://cdn.shopify.com/s/files/1/0431/0971/2021/files/22237632202.pdf
- https://cdn.shopify.com/s/files/1/0436/9914/2810/files/16853968423.pdf
- https://cdn.shopify.com/s/files/1/0434/6249/2313/files/tuxaduneligupewadib.pdf
- https://cdn.shopify.com/s/files/1/0441/1867/1512/files/maui_snorkel_report.pdf
- https://cdn.shopify.com/s/files/1/0434/1877/9815/files/92606345007.pdf
- https://cdn.shopify.com/s/files/1/0434/1760/0152/files/50803374968.pdf
- https://cdn.shopify.com/s/files/1/0437/8211/1381/files/add_blank_page_to_mac.pdf
- https://cdn.shopify.com/s/files/1/0434/3998/0710/files/tipos_de_canulas_para_traqueostomia.pdf
- https://cdn.shopify.com/s/files/1/0440/8918/0310/files/kayla_itsines_28_day_book.pdf
- https://cdn.shopify.com/s/files/1/0430/5613/6341/files/lusel.pdf
- https://cdn.shopify.com/s/files/1/0430/9424/5537/files/59793539417.pdf
- https://cdn.shopify.com/s/files/1/0433/8188/3030/files/xebokakapon.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/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000061e9.bina73679d571bcf0e7e29aba0e600d71e498f8e580eebd09733c69f06725b68d72 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61E9 | 5996 bytes |
font_01_sfnt_off0000763c.bin6d9a3115498bf64bcb60dbb0953d47704ede94fdfe7e6ba7625982471e3b9671 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x763C | 12616 bytes |
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