MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded URLs that redirect to a malicious domain, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'diaphragm breathing exercises for singing pdf' and the malicious URL, suggesting a lure. The ML classifier strongly flagged this PDF as malicious. The primary IOC is the redirector URL used in the lure.
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=diaphragm+breathing+exercises+for+singing+pdf
- http://diwad.foundationforadrugfreeworldnewyorkchapter.org/uploads/1/3/0/8/130874493/gosejuwa_zamapanolulujub_xowulujozobis_vagizituf.pdf
- http://files.rram.ca/uploads/1/3/1/6/131606861/gebojofonu-kotifirasareren.pdf
- http://files.kendrathomastravaille.com/uploads/1/3/0/8/130813781/vowebolulixemuzug.pdf
- http://files.bloomkc.org/uploads/1/3/2/6/132681587/f5c30b2eb60a.pdf
- http://geriv.donnacronk.com/uploads/1/3/2/6/132682076/nasogoketuv_kipemosiw_tazofazivu_jidegolitib.pdf
- https://cdn.shopify.com/s/files/1/0433/9433/4869/files/wosani.pdf
- https://cdn.shopify.com/s/files/1/0434/1415/9521/files/42881263903.pdf
- https://cdn.shopify.com/s/files/1/0434/0717/9941/files/60946823825.pdf
- https://cdn.shopify.com/s/files/1/0433/2234/3577/files/33133548548.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vazakiliduvapi.pdf
- https://cdn.shopify.com/s/files/1/0433/2306/4488/files/28173083808.pdf
- https://cdn.shopify.com/s/files/1/0431/3733/5464/files/zoology_notes.pdf
- https://cdn.shopify.com/s/files/1/0430/3945/7429/files/67143321154.pdf
- https://cdn.shopify.com/s/files/1/0436/3059/2160/files/21538042969.pdf
- https://cdn.shopify.com/s/files/1/0432/6955/4329/files/kixutam.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_off000061fe.binec53e1e3c66fea50931494a0ba483aeb50e73eefb0fed576a5f35ec6cd365bee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61FE | 5744 bytes |
font_01_sfnt_off00007562.bin4fec5abe83cec41d6c5009c9632109e45906cb2622870c0a5565810ee52193da |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7562 | 10228 bytes |
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