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 'https://ttraff.cc/wb?keyword=vocalise%20piano%20trio%20pdf'. Additionally, another critical heuristic indicates a link farm with numerous external PDF links, suggesting a SEO-based distribution method. The ML classifier also strongly flagged this PDF as malicious. The embedded URL is the primary indicator of malicious intent, likely leading to a phishing or malware download 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.cc/wb?keyword=vocalise%20piano%20trio%20pdf
- http://files.magicstorybooks.com/uploads/1/3/0/7/130776131/5d97c.pdf
- http://xinaro.antoinegindt.com/uploads/1/3/1/6/131606407/2789563.pdf
- http://files.kendramccartney.com/uploads/1/3/0/7/130776485/5392179.pdf
- https://cdn.shopify.com/s/files/1/0430/5905/2706/files/93455550747.pdf
- https://cdn.shopify.com/s/files/1/0431/7321/6411/files/gajavugoledevalawa.pdf
- https://cdn.shopify.com/s/files/1/0440/0427/8422/files/jetugenukarixofukako.pdf
- https://cdn.shopify.com/s/files/1/0430/1262/0447/files/niborululin.pdf
- https://cdn.shopify.com/s/files/1/0437/6464/6040/files/kindle_fire_1st_generation_root.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pisanebemewamabojesodid.pdf
- https://cdn.shopify.com/s/files/1/0427/4028/5607/files/30640717721.pdf
- https://cdn.shopify.com/s/files/1/0431/1734/6982/files/rebopivatatevavetezevapog.pdf
- https://cdn.shopify.com/s/files/1/0438/1304/4386/files/sezevasevekepagilag.pdf
- https://cdn.shopify.com/s/files/1/0428/3708/2271/files/mateb.pdf
- https://cdn.shopify.com/s/files/1/0431/0620/5857/files/g-_unit_beg_for_mercy.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_off00007927.bin4644e25cc4ee4688b4ead9f78b41ec62815a8f7e5f6f115ddb4da9aea012201b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7927 | 5116 bytes |
font_01_sfnt_off00008aa1.binf88d103b5b0247c14ac126b6bda6a6a3138e28b84dac18f7246dd75005b4dbc3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8AA1 | 10716 bytes |
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