MALICIOUS
152
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 a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.com. This indicates a social engineering attempt to drive traffic to potentially malicious sites under the guise of providing educational content. The ML classifier strongly supports the malicious verdict.
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=adding+integers+word+problems+pdf
- http://files.evelyngamacounseling.com/uploads/1/3/2/7/132712206/junewosijumiv.pdf
- http://files.jamztrainings.com/uploads/1/3/2/3/132303351/02c79e.pdf
- http://dalux.herefordshirefencingclub.co.uk/uploads/1/3/2/7/132712663/2686175.pdf
- http://files.bentcreeklodge.com/uploads/1/3/1/0/131070872/933118.pdf
- http://files.thewellonbeacon.com/uploads/1/3/0/8/130873992/9d761bd16.pdf
- https://cdn.shopify.com/s/files/1/0433/9204/1118/files/cryptocurrency_trading_platform_comparison.pdf
- https://cdn.shopify.com/s/files/1/0432/8790/4411/files/characteristics_of_life_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0430/6924/3549/files/fozofigiw.pdf
- https://cdn.shopify.com/s/files/1/0430/8379/2533/files/nemikibuzub.pdf
- https://cdn.shopify.com/s/files/1/0433/7103/6823/files/penokudowami.pdf
- https://cdn.shopify.com/s/files/1/0437/7300/1889/files/development_economics_masters.pdf
- https://cdn.shopify.com/s/files/1/0432/1044/0862/files/anna_karenina_magyarul.pdf
- https://cdn.shopify.com/s/files/1/0440/7007/6566/files/jenkins_generate_xml_report.pdf
- https://cdn.shopify.com/s/files/1/0430/8706/9335/files/28156694917.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007352.bin4aba2bb845853324476be69e5ed1bf4ff35002942389efac2b843cac1129f0e9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7352 | 2828 bytes |
font_01_sfnt_off00007d4d.bin2508c68599d7bf6471b82b7f5ddcddd20a790b95f625906e115352f53a643e18 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D4D | 5372 bytes |
font_02_sfnt_off00008f8b.bin1434fd140b9228ce6333b222e4be178c537f5ef1437505c4fdc5742f854c6a51 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8F8B | 10160 bytes |
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