MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded links pointing to redirector infrastructure, specifically 'ttraff.cc', which is flagged as malicious. The document body, though heavily obfuscated, contains text related to a 'crossword puzzle answer' and the authoring application 'wkhtmltopdf', suggesting a lure. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy, likely to obscure the malicious redirector. No scripts were extracted from this sample.
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/pify?keyword=energize+crossword+puzzle+answer
- http://files.myguttellsme.com/uploads/1/3/2/7/132710786/cb0b21d4e1ff.pdf
- http://files.harmonytrainingclub.com/uploads/1/3/0/7/130738607/dujugefugipog_jaloxapavodu_kizodavevawazi.pdf
- http://feborosa.saginawcountyreportcard.org/uploads/1/3/2/6/132682790/e3c266.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0435/7675/4344/files/72385627085.pdf
- https://cdn.shopify.com/s/files/1/0431/6836/6760/files/65710178134.pdf
- https://cdn.shopify.com/s/files/1/0433/4272/5275/files/71530213828.pdf
- https://cdn.shopify.com/s/files/1/0430/7487/9641/files/37392315460.pdf
- https://cdn.shopify.com/s/files/1/0429/1415/2607/files/human_vascular_system.pdf
- https://cdn.shopify.com/s/files/1/0437/1474/0375/files/92301641487.pdf
- https://cdn.shopify.com/s/files/1/0427/9762/9596/files/zelivabodafi.pdf
- https://cdn.shopify.com/s/files/1/0435/5552/0667/files/fuwozuwixikeluvivusuget.pdf
- https://cdn.shopify.com/s/files/1/0432/8187/5112/files/sugaluvuninopevig.pdf
- https://cdn.shopify.com/s/files/1/0435/3287/7975/files/3ds_virtual_console_cia.pdf
- https://cdn.shopify.com/s/files/1/0439/0735/0696/files/open_heaven_2015.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005b92.bin3c54865d1e91ad4f62be2826df67d403c5479e20e91c95070e969e155886cfc4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5B92 | 5340 bytes |
font_01_sfnt_off00006de2.bind2f57508fef89ff9a86659cec67a08f30a48d8a7b02d5d7ef691f393ec53ebe1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DE2 | 9992 bytes |
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