MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One critical heuristic identified a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be part of a link farm designed to attract traffic, likely for malicious purposes. 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=pathogenesis+of+neonatal+sepsis+pdf
- http://sewakes.g-baldai.lt/uploads/1/3/1/3/131383664/83818.pdf
- http://files.thefranchiseleague.com/uploads/1/3/1/4/131438175/turafu.pdf
- http://files.catalystmsm.com/uploads/1/3/2/6/132683334/8340257.pdf
- http://files.goldenbirdhope.com/uploads/1/3/2/6/132695418/rovig.pdf
- http://xapis.capricecrawford.com/uploads/1/3/0/8/130873851/1801597.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0436/2970/7422/files/tanunixidukakugi.pdf
- https://cdn.shopify.com/s/files/1/0429/8693/0329/files/48528521493.pdf
- https://cdn.shopify.com/s/files/1/0434/7058/6022/files/54131875440.pdf
- https://cdn.shopify.com/s/files/1/0433/6749/7880/files/jonenibuposikide.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32773531818.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tipibag.pdf
- https://cdn.shopify.com/s/files/1/0431/4651/0498/files/324036877.pdf
- https://cdn.shopify.com/s/files/1/0433/0147/0366/files/chinua_achebe_the_african_trilogy.pdf
- https://cdn.shopify.com/s/files/1/0438/4853/2128/files/all_the_mods_3_power_generation.pdf
- https://cdn.shopify.com/s/files/1/0430/1327/5811/files/rakaxogexewonuvuga.pdf
- https://cdn.shopify.com/s/files/1/0432/8695/4140/files/bteb_job_circular_2020.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_off000068e8.binbd206990b89810d0fe6e744ca57fa2dc3454dddaa0c0652cc61b545bc9c5f4dd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68E8 | 5208 bytes |
font_01_sfnt_off00007aab.bin529a29bfe735edc34d84f5211e7c323ac2e375208d632e6614dc31281bb827a7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AAB | 10024 bytes |
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