MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, with one identified as a known malicious redirector. The document body, though partially corrupted, contains the text 'How to play sounds through mic' and a URL that matches the redirector. This suggests a lure to trick users into clicking malicious links, likely for phishing or malware delivery. The ML classifier also 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=how+to+play+sounds+through+mic
- http://files.angelsofcharity.org/uploads/1/3/1/4/131406412/vobeteletenuvot.pdf
- http://files.guono.org/uploads/1/3/1/4/131406149/3988d751.pdf
- http://files.mjohnen.com/uploads/1/3/0/7/130739175/bb27d0a27c3f8.pdf
- http://files.radicallyawakenedmasters.com/uploads/1/3/0/7/130776249/deziw.pdf
- http://files.cwjcnwa.org/uploads/1/3/0/7/130775011/929e1221e427f9.pdf
- https://cdn.shopify.com/s/files/1/0439/2386/5768/files/61841310018.pdf
- https://cdn.shopify.com/s/files/1/0433/5845/3918/files/63680029310.pdf
- https://cdn.shopify.com/s/files/1/0431/5293/3024/files/wivokerunuwubedul.pdf
- https://cdn.shopify.com/s/files/1/0434/1514/2551/files/51340788564.pdf
- https://cdn.shopify.com/s/files/1/0435/7881/8715/files/67466903944.pdf
- https://cdn.shopify.com/s/files/1/0436/9360/5014/files/91271993838.pdf
- https://cdn.shopify.com/s/files/1/0431/8347/2802/files/vinimuxalafixizolirazoxe.pdf
- https://cdn.shopify.com/s/files/1/0429/2732/5343/files/53385517300.pdf
- https://cdn.shopify.com/s/files/1/0431/8278/4676/files/63270658366.pdf
- https://cdn.shopify.com/s/files/1/0434/3801/4616/files/213481148.pdf
- https://cdn.shopify.com/s/files/1/0431/1423/4017/files/89892154668.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_off000066d1.binc29e31cc67cc9d0feee86e2c581102b2e13c68fad748be57a8a0bd3ba0fcf34b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66D1 | 5644 bytes |
font_01_sfnt_off000079eb.bin2c03be2f88b3d0ef46a522f9a68471e6bd4673a2a505acdc27438b9116eae59e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79EB | 10020 bytes |
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