MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, with one pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the malicious URL and references to other PDFs, suggesting a link farm or redirection scheme. The primary attack pattern involves directing users to malicious infrastructure.
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=love+hurts+lyrics+incubus
- http://files.hamptonalumniatl.com/uploads/1/3/1/4/131453645/6696568.pdf
- http://files.pacehighchoir.com/uploads/1/3/1/8/131871891/2056809.pdf
- http://files.navajoareacoa.com/uploads/1/3/1/3/131398338/wutaraje.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/5390/8117/files/68420946984.pdf
- https://cdn.shopify.com/s/files/1/0439/2629/0587/files/21050709346.pdf
- https://cdn.shopify.com/s/files/1/0432/8954/2809/files/63403106043.pdf
- https://cdn.shopify.com/s/files/1/0431/5293/3018/files/65754785313.pdf
- https://cdn.shopify.com/s/files/1/0438/0862/0701/files/zuzudepizi.pdf
- https://cdn.shopify.com/s/files/1/0431/0673/0144/files/65496320443.pdf
- https://cdn.shopify.com/s/files/1/0429/8244/1113/files/91673821221.pdf
- https://cdn.shopify.com/s/files/1/0434/0862/1735/files/gavamof.pdf
- https://cdn.shopify.com/s/files/1/0430/8176/0935/files/zitudasafawapukozox.pdf
- https://cdn.shopify.com/s/files/1/0431/9150/0961/files/63962924503.pdf
- https://cdn.shopify.com/s/files/1/0432/8564/3420/files/63727853717.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004efc.bin52b4770e8b222de9c89668eac807aec4aa57f85ab3d2b06eb4ecc0eea8288b71 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4EFC | 4920 bytes |
font_01_sfnt_off00005fc9.bin3d7b36afd5324985a8495c52572e5b368fdfaa1815570f4eadc7dd7e1ec45617 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FC9 | 10064 bytes |
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