MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link disguised as a download for 'Bitdefender free edition 2018' which redirects to a malicious URL (ttraff.ru). This indicates a social engineering lure to trick users into visiting a potentially harmful site. The ML classifier strongly flagged this PDF as malicious, and multiple heuristics confirm the presence of malicious redirector links and a link farm.
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.ru/pify?keyword=bitdefender+free+edition+2018
- http://files.upbaseballsoftball.org/uploads/1/3/0/8/130814229/80009.pdf
- http://files.allbookedup.ca/uploads/1/3/0/7/130775103/mazoxepekevud_motuwexexuram_vobanot_lusato.pdf
- http://files.vintagefarmsuds.com/uploads/1/3/1/3/131398139/2611349.pdf
- http://vegutom.crsurfzone.com/uploads/1/3/1/6/131606233/7492e35e.pdf
- https://cdn.shopify.com/s/files/1/0429/5108/2143/files/gapexipodigedo.pdf
- https://cdn.shopify.com/s/files/1/0433/2906/1014/files/35527529096.pdf
- https://cdn.shopify.com/s/files/1/0438/2192/4514/files/31355767447.pdf
- https://cdn.shopify.com/s/files/1/0433/0936/7454/files/the_sum_of_its_parts_quote.pdf
- https://cdn.shopify.com/s/files/1/0428/2561/3468/files/pudisuseve.pdf
- https://cdn.shopify.com/s/files/1/0432/6971/8172/files/english_speaking_course_notes_free_download.pdf
- https://cdn.shopify.com/s/files/1/0430/7573/1616/files/tuxijenitidirasuxim.pdf
- https://cdn.shopify.com/s/files/1/0439/3218/8840/files/castle_in_the_sky_piano.pdf
- https://cdn.shopify.com/s/files/1/0431/0702/5056/files/fram_ph8170_cross_reference.pdf
- https://cdn.shopify.com/s/files/1/0432/2466/2173/files/cbt_therapy_worksheets.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_off00005bea.bind45175ca66c2196ff693c49cd842e970f23a35dfce462e74394852517c06385c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5BEA | 5048 bytes |
font_01_sfnt_off00006d27.bin3c917d0ab01063c20eb9ae6850e235ac7afc6a71401f3ecd8d66cb31d32594bd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D27 | 15616 bytes |
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