MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.ru. The document body, though heavily obfuscated, contains the same URL and appears to be a lure disguised as an installation manual. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF files, some of which are hosted on potentially compromised domains. The ML classifier strongly indicates maliciousness.
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/wb?keyword=insinkerator%20evolution%20pro%20compact%20installation%20manual
- http://files.massagetherapyvt.com/uploads/1/3/0/7/130776460/menawu.pdf
- http://files.yingyanzhao.com/uploads/1/3/1/4/131437724/riwuwefurosan_vorijemud.pdf
- http://files.brandongillin.com/uploads/1/3/1/8/131856347/e4de509a6.pdf
- https://cdn.shopify.com/s/files/1/0451/3919/8105/files/introduction_of_web_designing.pdf
- https://cdn.shopify.com/s/files/1/0444/2639/5814/files/tv_tropes_gargoyles.pdf
- https://cdn.shopify.com/s/files/1/0429/5429/3402/files/bogafapirulowebelawogum.pdf
- https://cdn.shopify.com/s/files/1/0436/7374/7609/files/botewugabilodozuforoziz.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/varanomavumozomadeda.pdf
- https://cdn.shopify.com/s/files/1/0431/2875/0241/files/92083730122.pdf
- https://cdn.shopify.com/s/files/1/0427/8976/5279/files/wubokoxupofuvegewoxa.pdf
- https://cdn.shopify.com/s/files/1/0439/8222/5566/files/que_es_administrador_de_dispositivos_en_informatica.pdf
- https://cdn.shopify.com/s/files/1/0431/7547/7407/files/37045947070.pdf
- https://cdn.shopify.com/s/files/1/0434/0131/4456/files/fixuduvowetufazepig.pdf
- https://cdn.shopify.com/s/files/1/0434/3624/5142/files/full_program_indir.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_off00005c34.bindcd4fca45025d9f05dbd130d61f590f34196e9479bde0da0852f3a59c512407b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C34 | 5140 bytes |
font_01_sfnt_off00006d99.bind0155508f5f24a276db9d47069dd8c78fd5c1346ae328266462aea8f261c51a6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D99 | 10244 bytes |
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