MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/wb?keyword=jumlah%20penduduk%20dunia%202019%20pdf'. This indicates the document's primary purpose is to trick the user into visiting a malicious URL. The presence of a large number of external PDF links also suggests a link farm or SEO manipulation tactic to obscure the malicious intent. The ML classifier strongly supports the malicious nature of this PDF.
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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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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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/wb?keyword=jumlah%20penduduk%20dunia%202019%20pdf In PDF document text
- http://files.defrancefineart.com/uploads/1/3/1/3/131380083/difenapej-zenevegexusa-fomewiritonane-vusodat.pdfIn PDF document text
- http://files.thewineswirler.com/uploads/1/3/2/7/132740865/ee3c0f6b96212d6.pdfIn PDF document text
- http://files.karrathacaravanpark.com.au/uploads/1/3/0/8/130874501/c367936f4.pdfIn PDF document text
- http://files.kakapocakes.com/uploads/1/3/0/8/130813307/017e8771.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://bonokikaj.files.wordpress.com/2020/06/88781159324.pdfIn PDF document text
- https://makabusaban.files.wordpress.com/2020/07/22680119167.pdfIn PDF document text
- https://bubejiruzer907982527.files.wordpress.com/2020/06/32207936761.pdfIn PDF document text
- https://pulebikib.files.wordpress.com/2020/07/gegugufuligom.pdfIn PDF document text
- https://guzotigemidu.files.wordpress.com/2020/06/73505554487.pdfIn PDF document text
- https://kumitewefa.files.wordpress.com/2020/06/14899411210.pdfIn PDF document text
- https://fezipok.files.wordpress.com/2020/06/nosiselela.pdfIn PDF document text
- https://sonaloz.files.wordpress.com/2020/06/sapavuriz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15906675896.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9752/2329/files/jidamonefoju.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3373/9932/files/bediruwagamibapumugunen.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7194/6398/files/28624673256.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2585/8714/files/fisir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mazimuzoxoku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tedogunugovosilogupex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2270/4030/files/xukupani.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/20785775646.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
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000990f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x990F | 5232 bytes |
SHA-256: 09c5fd647bf6528fdb25f049dbc339f48daed6712d900974ff2ea7a7ab22f03b |
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font_01_sfnt_off0000aab2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAAB2 | 10588 bytes |
SHA-256: 2637dbb86452ce25efc3d3c929d65553ef65065c3ac65a736fcb11ad77b87deb |
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