MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains embedded links, with one pointing to a known malicious redirector. The document body, though partially corrupted, includes text related to 'Topics for group discussion with answers' and the malicious URL, suggesting a lure. The presence of numerous external PDF links further indicates a link farm strategy, likely to obscure the ultimate destination or to improve search engine ranking for malicious content. The ML classifier strongly flagged this PDF as malicious.
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.ru/pify?keyword=topics+for+group+discussion+with+answers
- http://vokanox.talltechteacher.com/uploads/1/3/2/3/132303382/vojobofok-juxobegoromut-gazol-gevepakilaloro.pdf
- http://gerakuj.scarboroughmaineyoga.com/uploads/1/3/1/3/131380999/dizufun_mutigum_nipifuva.pdf
- http://files.rockvillehelp.org/uploads/1/3/1/4/131437443/5649129.pdf
- http://rexovix.cjbrassica.com/uploads/1/3/0/8/130874075/a35c7ca3844db.pdf
- https://cdn.shopify.com/s/files/1/0440/3717/7494/files/buwavinu.pdf
- https://cdn.shopify.com/s/files/1/0438/1189/7504/files/zavamusexukixu.pdf
- https://cdn.shopify.com/s/files/1/0435/7763/9075/files/second_conditional_exercises_multiple_choice.pdf
- https://cdn.shopify.com/s/files/1/0432/7568/1947/files/adagio_baermann.pdf
- https://cdn.shopify.com/s/files/1/0427/4031/8375/files/augusto_cury_livros.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pejuzesuloroxutebed.pdf
- https://cdn.shopify.com/s/files/1/0437/8266/8437/files/87378343670.pdf
- https://cdn.shopify.com/s/files/1/0430/7301/1863/files/85499613945.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/
- https://cdn.shopify.com/s/files/1/0435/7763/9075/files/second_conditional_exercises_m
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006e9a.bind87f1d345274e8e178aaa108bf5b77349d273e1efeffc919fcb14fc0d81485f6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E9A | 5428 bytes |
font_01_sfnt_off00008113.binc3ac06a62af7a3828113e366d1332f47a8cf81d8ec17b66a56f753338d218e13 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8113 | 10200 bytes |
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