MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a malicious redirector link disguised as a worksheet, which is a common lure for phishing attacks. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic shows a large number of external links, many of which are likely part of a link farm to improve search engine ranking for malicious content. The primary malicious IOC is the redirector URL.
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.club/wix?keyword=drawing+scatter+graphs+worksheet
- https://static.usrfiles.com/ugd/6da380_2194668a56924629b2b20f2f32a4d2f1.pdf
- https://static.usrfiles.com/ugd/de65f7_52e241ac007849f2a93add1e2bba0cb2.pdf
- https://static.usrfiles.com/ugd/b8c837_3ce59fce00724f29a5bf37664d72886b.pdf
- https://static.usrfiles.com/ugd/55cc32_e1d4ed99f269452ca94fb327df550538.pdf
- https://cdn.shopify.com/s/files/1/0434/2883/9586/files/bobina_de_tesla_unam.pdf
- https://cdn.shopify.com/s/files/1/0431/7360/9636/files/bigukeguri.pdf
- https://cdn.shopify.com/s/files/1/0430/7465/0261/files/megujisabekotedaku.pdf
- https://cdn.shopify.com/s/files/1/0437/3626/8949/files/verizon_kyocera_flip_phone_manual.pdf
- https://cdn.shopify.com/s/files/1/0436/7617/2441/files/neumonia_en_nios_colombia.pdf
- https://cdn.shopify.com/s/files/1/0434/0262/5178/files/bharat_movie_moviescounter.pdf
- https://cdn.shopify.com/s/files/1/0433/1791/9909/files/zeweribivobipovozazut.pdf
- https://cdn.shopify.com/s/files/1/0428/4373/4172/files/blackmart_apk_xda.pdf
- https://cdn.shopify.com/s/files/1/0438/8945/9368/files/sirozenowovixujufod.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_off00005a0e.bin365d576960fe641b9215baa9cba95185f01329ddbc7ae10ddc9751fcadcf7a98 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A0E | 5316 bytes |
font_01_sfnt_off00006c3e.bin1308747ef2c85d8ebbb99d437a3c69dcf8dd5f819b31533fdb1fb9f8224fd0f4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C3E | 9944 bytes |
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