MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.com, disguised as a balance statement. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many hosted on cdn.shopify.com, suggesting a link farm used for SEO poisoning or traffic redirection. The ML classifier also strongly flagged this PDF as malicious. The document body, though partially corrupted, contains Portuguese text related to a balance statement, reinforcing the lure.
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=balancete+de+verifica%25C3%25A7%25C3%25A3o+pdf
- http://files.tuscaroraperformingarts.org/uploads/1/3/1/6/131606046/7670604.pdf
- http://files.fearnotministries.com/uploads/1/3/1/4/131453124/begadibex.pdf
- http://files.jeremy-proulx.com/uploads/1/3/0/7/130775197/b79ec8863a42.pdf
- https://cdn.shopify.com/s/files/1/0433/0127/3750/files/buxawox.pdf
- https://cdn.shopify.com/s/files/1/0429/6874/4087/files/matuvixe.pdf
- https://cdn.shopify.com/s/files/1/0431/8268/6370/files/gupajipaxejidebisaga.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kuzizurogepibisomagin.pdf
- https://cdn.shopify.com/s/files/1/0430/0505/1029/files/57947045239.pdf
- https://cdn.shopify.com/s/files/1/0428/6060/9703/files/7807568468.pdf
- https://cdn.shopify.com/s/files/1/0428/9629/4051/files/bubiwujafawol.pdf
- https://cdn.shopify.com/s/files/1/0430/8733/1481/files/fundamentals_of_electrical_engineering_bobrow.pdf
- https://cdn.shopify.com/s/files/1/0435/6833/2968/files/45523213339.pdf
- https://cdn.shopify.com/s/files/1/0432/8423/4398/files/jevalururokitatemona.pdf
- https://cdn.shopify.com/s/files/1/0436/9462/0837/files/zitemofonoxizuboj.pdf
- https://cdn.shopify.com/s/files/1/0431/3861/3399/files/converter_arquivo_autocad_para_online.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_off00006ffa.bin9e5891e7ba26bce4b21c627c8ae390b7e9997962d6eddb968be3236c15508715 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FFA | 5580 bytes |
font_01_sfnt_off0000822a.bina75a36a3e4c8bbc0ea56ce0baea97a56c8366e34353ea3433f6c57f535f05b74 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x822A | 12812 bytes |
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