MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document contains a link farm and a redirector pointing to 'ttraff.ru', which is flagged as malicious. The document body, though heavily obfuscated, contains a URL that appears to be part of a lure for opening RAR archives. The presence of a password-protected archive lure suggests an attempt to bypass gateway scanning, and the ML classifier strongly indicates malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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=programa+para+abrir+rar+archivos+par In PDF document text
- http://bebinoriz.thelongwellfiles.com/uploads/1/3/1/3/131397997/c1cfee.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8237/4561/files/77538967307.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1740/4573/files/fomogezolategisuluxezafef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5199/9637/files/24239599626.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6017/3717/files/reragure.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5481/6667/files/standard_ps_2_keyboard_driver_hp.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1378/1157/files/free_printable_sheet_music_paper.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1167/0179/files/rovetukono.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2046/7869/files/gumonigusimorujofosa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6825/2565/files/free_alphabetical_order_worksheets.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000068da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68DA | 6832 bytes |
SHA-256: 01ac34376b7092400a12f9c5b46029046d686b565a1181b560d79e3eb0283013 |
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font_01_sfnt_off00007a2a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A2A | 5516 bytes |
SHA-256: 9d90134aed9f965eeb68046dc0c2524b58f90513488a164d28a50ebba2521bba |
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font_02_sfnt_off00008ccc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8CCC | 11512 bytes |
SHA-256: 19c981225f9fff5311e61987e4b107e188c1af4f0bc71a504634c069dc7e9ddc |
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font_03_sfnt_off0000b279.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB279 | 16312 bytes |
SHA-256: bf8f9ece8d9d74ce2d7a98a07ee1bb8f4056faf702b3b1702118181e85f1b939 |
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