MALICIOUS
152
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. Additionally, it exhibits characteristics of a PDF SEO link farm, with numerous links to external PDFs, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious. The embedded URL 'https://ttraff.ru/pify?keyword=const+in+c' is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site.
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/pify?keyword=const+in+c
- http://files.sprucestreetnyc.org/uploads/1/3/1/3/131380440/f77012b719aff5.pdf
- http://files.duhbuhlyoo.com/uploads/1/3/1/8/131871850/xeweludigokivor_risovimapake_rekuzigiluku_zigetovomi.pdf
- http://files.columbiadentcenter.com/uploads/1/3/0/9/130969910/jubegonakajij-desagomabof-sateno-pikilolot.pdf
- https://cdn.shopify.com/s/files/1/0429/2388/4711/files/42541078412.pdf
- https://cdn.shopify.com/s/files/1/0428/3547/6636/files/57910777774.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/82595467958.pdf
- https://cdn.shopify.com/s/files/1/0433/2814/3510/files/nipeduxijulofikimavimuwo.pdf
- https://cdn.shopify.com/s/files/1/0429/0140/5852/files/watch_smallville_online_free_megavideo.pdf
- https://cdn.shopify.com/s/files/1/0427/7121/8588/files/wupamajemodobetujiwiwu.pdf
- https://cdn.shopify.com/s/files/1/0430/6649/1042/files/3547083377.pdf
- https://cdn.shopify.com/s/files/1/0432/0778/6654/files/miwuwujawawopamo.pdf
- https://cdn.shopify.com/s/files/1/0434/2215/4908/files/48460714665.pdf
- https://cdn.shopify.com/s/files/1/0431/6197/6994/files/67571223340.pdf
- https://cdn.shopify.com/s/files/1/0428/6860/5095/files/18307799244.pdf
- https://cdn.shopify.com/s/files/1/0429/1559/4393/files/didonazo.pdf
- https://cdn.shopify.com/s/files/1/0431/0423/9770/files/tuket.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_off0000b9be.binfe580b7374994206c9d3e80a766fe15c7593033380864034711b608e11d53475 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9BE | 4360 bytes |
font_01_sfnt_off0000c8a2.bin8b7f145e415de41cd39cf032d022fc294922c4602418beb59f1e37ef9f55327c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8A2 | 10592 bytes |
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