MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.ru/pify?keyword=system+administrator+in+linux+pdf'. The document body, though heavily obfuscated, contains this URL and appears to be a lure disguised as a technical document. The presence of a link farm and the ML classifier's high confidence further support the malicious classification. The primary attack vector is likely directing users to malicious infrastructure via these links.
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=system+administrator+in+linux+pdf In PDF document text
- http://zaniva.stdavidscarrmill.org/uploads/1/3/2/6/132682646/15ddd77c1b741.pdfIn PDF document text
- http://files.terrymcgrawphotography.com/uploads/1/3/1/3/131398182/6319721.pdfIn PDF document text
- http://files.belleandbeaucompany.com/uploads/1/3/1/1/131163667/b981639701c2062.pdfIn PDF document text
- http://files.dentontannerinsurance.com/uploads/1/3/0/7/130739715/mopixemosi-wobusi-letizazo.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/1/0430/5109/0071/files/44745718888.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nasodidupafulad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8909/3018/files/85564620254.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0023/3112/files/zidukudadefazuvuxetanuzaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3463/9522/files/97564971008.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9119/0167/files/characteristics_of_bacteria.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6113/9861/files/all_about_space_issue_70.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9065/7951/files/fupugerudenepisativumijoz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6975/0944/files/pdf_file_converter_autocad_drawing_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/5269/3654/files/noxobidawebezet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8951/1068/files/18341727443.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3281/3473/files/29739269605.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0733/6857/files/ludobemorigoze.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1138/1147/files/.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9946/2558/files/wekubipil.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_off00006b0f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B0F | 5460 bytes |
SHA-256: ec6acbbcc4354e230b21a15f9f194d5784440c7d1f6526a5fce68d3334708984 |
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font_01_sfnt_off00007d93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D93 | 12760 bytes |
SHA-256: 0d362a2766dc3486efd493396a3fd8e9519beb967af2ea9ae78c05711c8f8eb4 |
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