MALICIOUS
202
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. The document body, though heavily obfuscated, suggests a lure related to a book summary. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to further malicious content. The ML classifier strongly indicates maliciousness.
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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINKPDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
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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=the%20minister In PDF document text
- http://files.5ivecoffee.com/uploads/1/3/1/4/131409693/xuvonomivegu.pdfIn PDF document text
- http://files.ratt-ru.org/uploads/1/3/1/8/131871494/litasuwadefaliv.pdfIn PDF document text
- http://files.catharsisfightingthedrugepidemic.com/uploads/1/3/2/7/132741764/1f82c.pdfIn PDF document text
- https://ttraff.ru/wb?keyword=the%20minister's%20black%20veil%20summary%20pdfIn 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/1/0428/9835/8432/files/tozonolemudafolafoxi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5900/4070/files/kitagi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7512/5923/files/buxalulizevudok.pdfIn PDF document text
- https://jagenanevor.files.wordpress.com/2020/06/59152118971.pdfIn PDF document text
- https://legebepome.files.wordpress.com/2020/06/99743388653.pdfIn PDF document text
- https://namilarom.files.wordpress.com/2020/07/zabubafotemamoxi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71062637782.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9450/6661/files/gegawagukavu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3649/2444/files/3942139641.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6862/8892/files/95431571642.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3694/2234/files/vowinu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3612/2008/files/gojanenatemerekosaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8260/4963/files/5280334093.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9455/6320/files/kezew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2767/7852/files/48995766622.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0288/8351/files/24907566890.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_off00007c27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C27 | 5516 bytes |
SHA-256: d2a68cbf43bb7e22c64743036a5e5ef3b2de273f54ff2bfd5f07022e04d155af |
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font_01_sfnt_off00008ec5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8EC5 | 9976 bytes |
SHA-256: 6d2af021c8d076b153a23733d43bf82740df195bee91ee545de82aca684902e5 |
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