MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm of 30 external PDF files, with one primary link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'A word wallpaper hd' and the malicious URL, suggesting a lure for users to download content that ultimately leads to malicious infrastructure. The ML classifier strongly indicated maliciousness.
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/pify?keyword=a+word+wallpaper+hd In PDF document text
- http://walofu.didintle.online/uploads/1/3/0/7/130776158/zisajuf-wuwuziludojob-liwad-kowufepi.pdfIn PDF document text
- http://kovomi.oabtrucker.com/uploads/1/3/2/6/132681670/parur-setogexuneki-wivokifafatuf-kasenuluxen.pdfIn PDF document text
- http://tupez.diamondhomes.net/uploads/1/3/1/3/131384609/3380089.pdfIn PDF document text
- http://files.choosejoyanyway.org/uploads/1/3/1/4/131437949/80acb94d6807.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0433/5638/9528/files/rekexu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4023/4902/files/25561745541.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5840/5274/files/topudesusimubudesibo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lebalod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0698/3335/files/68109989430.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4697/7179/files/bleacher_report_ny_knicks.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1762/3957/files/29935262815.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2381/1239/files/82402942416.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2210/6271/files/zakopedomosekali.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9194/1781/files/nawogadimiwogegitalalozun.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0840/0280/files/twitch_ban_checker.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5964/1496/files/13106878577.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1712/6563/files/34834222206.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000065b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65B7 | 4504 bytes |
SHA-256: 86557c4b2ba9dc16cfbd19dc2336183f775c0443880dd0e7661dc67cc7f84e6b |
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font_01_sfnt_off00007518.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7518 | 10288 bytes |
SHA-256: bbc0243ec2491727c71ea7c012a42541f25f135fd53d8bbf54b8c914d1b7e08a |
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font_02_sfnt_off00009818.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9818 | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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