MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. The document body text, though heavily obfuscated, contains the URL 'https://ttraff.cc/wb?keyword=fragment%20sentence%20worksheets%205th%20grade', suggesting a lure to download further content. The presence of numerous other PDF links, many hosted on shopify.com, indicates a link farm strategy, likely to obscure the ultimate malicious destination.
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.cc/wb?keyword=fragment%20sentence%20worksheets%205th%20grade
- http://gagukij.vickyannewrightstudios.com/uploads/1/3/1/3/131380349/jipejev.pdf
- http://files.chongai520.com/uploads/1/3/1/4/131437491/5950858.pdf
- http://files.newlenoxordnance.com/uploads/1/3/0/9/130969561/roremijeg.pdf
- http://files.mathmaniarobotics.com/uploads/1/3/1/3/131383958/3682217.pdf
- http://files.wheatlesskitchen.com/uploads/1/3/0/7/130775219/6269589.pdf
- https://cdn.shopify.com/s/files/1/0434/9168/8610/files/monosarafatideluk.pdf
- https://cdn.shopify.com/s/files/1/0428/6644/2406/files/tidexibemugakipegijirib.pdf
- https://cdn.shopify.com/s/files/1/0430/0213/4681/files/calculus_10th_edition_book.pdf
- https://cdn.shopify.com/s/files/1/0429/6137/1290/files/mud_logging_handbook.pdf
- https://cdn.shopify.com/s/files/1/0437/1791/8870/files/compressing_file_size_mac.pdf
- https://cdn.shopify.com/s/files/1/0430/3942/4669/files/dafujubajevagenixamol.pdf
- https://cdn.shopify.com/s/files/1/0431/4241/4492/files/wubasopegisixelejis.pdf
- https://cdn.shopify.com/s/files/1/0428/9868/6111/files/85205073499.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/6317908028.pdf
- https://cdn.shopify.com/s/files/1/0434/4718/9670/files/jidixojetase.pdf
- https://cdn.shopify.com/s/files/1/0438/5121/9104/files/kudobo.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_off000046a4.bin11922877903ff080e05d73aeca74820f55ee09deb86fd283e8cf65cd93812cf5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x46A4 | 5556 bytes |
font_01_sfnt_off0000596f.bin7d681dcdd4df9abec6ef5dfe860606f282e41c56b3a904fff8723236d1f7de14 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x596F | 9052 bytes |
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