MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links that are flagged as malicious redirectors. The document body, though heavily obfuscated, contains text that appears to be a lure for educational materials, specifically an answer key. The primary malicious link, https://ttraff.ru/pify?keyword=bridges+in+mathematics+grade+4+home+connections+answer+key+pdf, is designed to redirect users to potentially harmful content. The presence of numerous other links, many hosted on cdn.shopify.com, suggests a link farm or SEO poisoning tactic to distribute the malicious payload.
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=bridges+in+mathematics+grade+4+home+connections+answer+key+pdf
- http://vinox.artvenya.com/uploads/1/3/1/4/131407005/8200414.pdf
- http://files.pbjprodj.com/uploads/1/3/0/7/130738971/kigudelilet-kodeb.pdf
- http://files.communityconnectionsaz.org/uploads/1/3/1/4/131437333/2360383.pdf
- https://cdn.shopify.com/s/files/1/0435/8832/1443/files/fexagegi.pdf
- https://cdn.shopify.com/s/files/1/0433/4705/0661/files/pozafesusepolur.pdf
- https://cdn.shopify.com/s/files/1/0435/2435/8298/files/opencv_raspberry_pi.pdf
- https://cdn.shopify.com/s/files/1/0432/3019/9966/files/92580476077.pdf
- https://cdn.shopify.com/s/files/1/0431/4251/2797/files/62042492950.pdf
- https://cdn.shopify.com/s/files/1/0436/5156/3670/files/dijajizob.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92283418618.pdf
- https://cdn.shopify.com/s/files/1/0434/5259/6374/files/digimon_theme_song_lyrics.pdf
- https://cdn.shopify.com/s/files/1/0429/7339/7145/files/nejunedubebuv.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_off00006532.bin58198bded0c7977c3a0b03287b135e3dcb9e81b396d5ef65fa1d19938002f678 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6532 | 5720 bytes |
font_01_sfnt_off00007891.bin5e093dafc25dcffa1a3f5042f14e47cdb2207c169627aedd8b814ceaf7f0d714 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7891 | 10076 bytes |
font_02_sfnt_off00009b07.bina542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9B07 | 4324 bytes |
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