MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass external link farm, with a primary URL pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Business report writing format' and the malicious URL itself, suggesting a lure. The ML classifier strongly indicated maliciousness. No scripts were extracted, but the PDF structure and embedded links are indicative of a phishing or redirection attempt.
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=business+report+writing+format
- http://files.armakansas.org/uploads/1/3/1/4/131453843/magekadiripi_topiranoboxa_wifivosajibutob.pdf
- http://xopufo.mrshemlersclass.com/uploads/1/3/0/8/130814328/2251918.pdf
- https://cdn.shopify.com/s/files/1/0427/7462/6470/files/52851489821.pdf
- https://cdn.shopify.com/s/files/1/0429/9869/4049/files/sumamanujufanadawumifabi.pdf
- https://cdn.shopify.com/s/files/1/0437/9269/5456/files/lejovezefubiwejeko.pdf
- https://cdn.shopify.com/s/files/1/0429/4125/1747/files/phn_mm_chuyn_i_file_nh_sang_min_ph.pdf
- https://cdn.shopify.com/s/files/1/0429/3450/1535/files/zobes.pdf
- https://cdn.shopify.com/s/files/1/0428/9282/0643/files/ets_gre_book.pdf
- https://cdn.shopify.com/s/files/1/0435/6662/9032/files/zaguridipixegugujonin.pdf
- https://cdn.shopify.com/s/files/1/0429/6481/1935/files/62795266755.pdf
- https://cdn.shopify.com/s/files/1/0429/8440/7199/files/delhi_metro_map_full_hd.pdf
- https://cdn.shopify.com/s/files/1/0434/5148/2278/files/90306327586.pdf
- https://cdn.shopify.com/s/files/1/0432/8760/9497/files/69289851596.pdf
- https://cdn.shopify.com/s/files/1/0431/9117/3282/files/gobinorukolufugifita.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_off00005eb8.bin5fa7d831df816f09efa221265661cb9e9a449a1a0f61df66753644a0d56ade54 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EB8 | 5332 bytes |
font_01_sfnt_off000070d3.bin2af798b84c84aa7d4c4ddc8c15153322dd8970622f5d1d7c647b45b95dbbc795 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70D3 | 9772 bytes |
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