MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination of the malicious payload. The document also contains a large number of links to benign-looking PDFs hosted on Shopify, suggesting a link farm or SEO poisoning tactic to attract victims. The ML classifier strongly indicated maliciousness.
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=protein+disulfide+bond+formation+in+prokaryotes
- http://files.leavingtheninetynine.org/uploads/1/3/0/9/130969695/rimos.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0435/5761/7823/files/mujuxizamuvepatusepu.pdf
- https://cdn.shopify.com/s/files/1/0435/8779/7151/files/nonuwewesepexekino.pdf
- https://cdn.shopify.com/s/files/1/0432/3111/7467/files/sugovusuwefudajijap.pdf
- https://cdn.shopify.com/s/files/1/0431/1633/1172/files/gastroenterology_clinical_cases.pdf
- https://cdn.shopify.com/s/files/1/0440/7679/4008/files/amino_acid_function.pdf
- https://cdn.shopify.com/s/files/1/0429/2640/7833/files/98234208113.pdf
- https://cdn.shopify.com/s/files/1/0434/6534/3126/files/rudirifibuwa.pdf
- https://cdn.shopify.com/s/files/1/0430/2202/4867/files/wadazakoxara.pdf
- https://cdn.shopify.com/s/files/1/0431/1652/7770/files/gavabotaboro.pdf
- https://cdn.shopify.com/s/files/1/0435/1442/9608/files/fulazugunepowurakijav.pdf
- https://cdn.shopify.com/s/files/1/0433/7824/5781/files/76048105259.pdf
- https://cdn.shopify.com/s/files/1/0438/2490/6400/files/xolofibunixigozolinu.pdf
- https://cdn.shopify.com/s/files/1/0428/2767/7852/files/90342061022.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_off00004d32.binfcae46572028eead89958778c71d7119081342a4e57c99bed15731fa36b9f4af |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4D32 | 5492 bytes |
font_01_sfnt_off00005fc8.binc238f84ba8f838a6559c417c7970b66234beb7b6b0cff1345f1fda9c00c46596 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FC8 | 10248 bytes |
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