MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a riddle and embeds multiple links, with the primary link directing to a known malicious redirector. This redirector is part of a link farm designed to distribute malicious content. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted, but the embedded links and heuristic firings indicate a social engineering attempt to lead the user to harmful 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.ru/pify?keyword=riddles+with+answer+what+am+i
- http://files.dignityandgrace.com/uploads/1/3/1/1/131164113/684266.pdf
- https://cdn.shopify.com/s/files/1/0438/2438/2109/files/26367500422.pdf
- https://cdn.shopify.com/s/files/1/0436/5120/3225/files/bourbaki_integration.pdf
- https://cdn.shopify.com/s/files/1/0430/4021/1105/files/37568528674.pdf
- https://cdn.shopify.com/s/files/1/0430/1645/4305/files/9209562175.pdf
- https://cdn.shopify.com/s/files/1/0436/3865/3086/files/gawonogavarapi.pdf
- https://cdn.shopify.com/s/files/1/0437/5930/4865/files/60728341318.pdf
- https://cdn.shopify.com/s/files/1/0437/9662/7616/files/nipimajexumuviputogo.pdf
- https://cdn.shopify.com/s/files/1/0436/9619/3686/files/90285854823.pdf
- https://cdn.shopify.com/s/files/1/0434/7353/5138/files/banoritawikoz.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006ddd.bin39c48013988b387845c8559df21f47db9abdcdeb14bc5500ac510606d91de02b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DDD | 4840 bytes |
font_01_sfnt_off00007e1a.binf832539fdeef44a3f73118988948c2c0081142648c68adc4141170501afa2af2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E1A | 10120 bytes |
font_02_sfnt_off0000a0b6.bin1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA0B6 | 4324 bytes |
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