MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.cc, which is presented as a 'bleep sound effect download'. The document also functions as a link farm, directing users to numerous other PDFs hosted on various domains, many of which are dynamically generated or use numeric slugs, suggesting a SEO poisoning or link farm tactic. The ML classifier strongly indicated 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.cc/pify?keyword=bleep+sound+effect+download
- http://files.cypbb.com/uploads/1/3/0/7/130775192/3a7ce22b9d48e8.pdf
- http://files.hammellwinealliance.com/uploads/1/3/2/6/132695575/d00818ffd3e.pdf
- http://files.daisyhillgoats.com/uploads/1/3/0/9/130969855/fagajawerowiz-jasewonimaxar-fikama.pdf
- http://files.loveandorthodontics.com/uploads/1/3/0/7/130740017/zejipater.pdf
- https://cdn.shopify.com/s/files/1/0429/3237/1622/files/46962580699.pdf
- https://cdn.shopify.com/s/files/1/0433/0638/5573/files/topus.pdf
- https://cdn.shopify.com/s/files/1/0431/1128/4893/files/wilexopexinule.pdf
- https://cdn.shopify.com/s/files/1/0431/2186/8960/files/zuzududunosukovunuvebuk.pdf
- https://cdn.shopify.com/s/files/1/0431/7764/0093/files/bozurifagemobidemakovid.pdf
- https://cdn.shopify.com/s/files/1/0431/3153/5524/files/70381955721.pdf
- https://cdn.shopify.com/s/files/1/0438/5816/5925/files/tanka_poetry_example.pdf
- https://cdn.shopify.com/s/files/1/0429/2309/8279/files/kubota_b7800_for_sale.pdf
- https://cdn.shopify.com/s/files/1/0433/7562/4350/files/91896031094.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81667611697.pdf
- https://cdn.shopify.com/s/files/1/0437/3735/0293/files/55707101487.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_off00004a17.bin64d7e36f406d8ef676377dfa7858d23e085ccac3e0379faa0f9a19f2d632251a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4A17 | 5196 bytes |
font_01_sfnt_off00005bf4.bind1f64fdf9d9d8573eb66f995feb2947d10b22a9620ce6cdcb1fc6bd562c67cf7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5BF4 | 9640 bytes |
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