MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file contains a critical heuristic firing for linking to malicious redirector infrastructure, specifically 'ttraff.ru'. The document body, though heavily obfuscated, contains URLs that are part of a link farm, suggesting an attempt to manipulate search engine results or distribute malicious content. The presence of a password archive lure heuristic indicates that the PDF may be a precursor to delivering a password-protected malicious archive.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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=bcra+informe+deudores+por+cuit
- http://files.aggieowned.com/uploads/1/3/0/8/130814411/3ff5bc50300c175.pdf
- http://files.humboldtmutualaid.org/uploads/1/3/2/8/132815003/9127204.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0438/4368/2469/files/winuzaz.pdf
- https://cdn.shopify.com/s/files/1/0429/5150/8131/files/40233366544.pdf
- https://cdn.shopify.com/s/files/1/0429/4790/3654/files/79606621958.pdf
- https://cdn.shopify.com/s/files/1/0428/6958/8124/files/44054950943.pdf
- https://cdn.shopify.com/s/files/1/0427/9762/9596/files/26673355808.pdf
- https://cdn.shopify.com/s/files/1/0431/0892/5600/files/luwerelusijudaridovovalo.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/99203043279.pdf
- https://cdn.shopify.com/s/files/1/0433/5425/9606/files/cable_tray_design.pdf
- https://cdn.shopify.com/s/files/1/0437/1588/7256/files/gejafexosoluw.pdf
- https://cdn.shopify.com/s/files/1/0439/9818/3582/files/gosain_baganer_bhoot_download.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_off00007410.bin03992e505771a639f9668e25b0783c8f5cba6b5066aba2f07385edea12d49d07 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7410 | 5320 bytes |
font_01_sfnt_off00008603.binb5b1ff9a17864b5a5d62626272b3ad93ff135c3f036c537fde12bc1869ebddfc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8603 | 10844 bytes |
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