MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF was flagged as malicious by a machine learning classifier and contains numerous embedded links. One critical heuristic identified a link to known malicious redirector infrastructure, and another identified a large link farm, suggesting a coordinated effort to distribute malicious content. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector.
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=autothermal+reforming+process+flow+diagram
- http://files.thewrightauthor.com/uploads/1/3/0/8/130814397/batukitotejan.pdf
- http://files.abellcable.com/uploads/1/3/0/7/130740391/vubupikepita.pdf
- http://files.massimilianogatti.com/uploads/1/3/1/3/131380871/ab3a4799439.pdf
- https://cdn.shopify.com/s/files/1/0437/0874/3835/files/mamujerefudokibetejikad.pdf
- https://cdn.shopify.com/s/files/1/0430/7537/1159/files/lowalajuxa.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85947343199.pdf
- https://cdn.shopify.com/s/files/1/0434/7982/6582/files/93609532808.pdf
- https://cdn.shopify.com/s/files/1/0430/6986/6133/files/raxeboguvimulafani.pdf
- https://cdn.shopify.com/s/files/1/0433/8031/0174/files/62737421140.pdf
- https://cdn.shopify.com/s/files/1/0430/6495/0945/files/98216003670.pdf
- https://cdn.shopify.com/s/files/1/0432/2154/9217/files/31215532330.pdf
- https://cdn.shopify.com/s/files/1/0440/1171/6766/files/25166625856.pdf
- https://cdn.shopify.com/s/files/1/0459/6033/1423/files/top_songs_in_the_world_free.pdf
- https://cdn.shopify.com/s/files/1/0434/7707/4086/files/pulajiviwazaju.pdf
- https://cdn.shopify.com/s/files/1/0431/3969/4741/files/ameritrade_ira_terms_of_withdrawal.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_off0000dbf6.bin469ed2f56d7505b78b89bba549af31842d60c8cab4394c732ebacc999420a190 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBF6 | 5652 bytes |
font_01_sfnt_off0000ef16.bin05a985f6a2ae6312ff2ad9e35302e81276c42adbea2c1a7cca2cfb082781a84a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF16 | 11416 bytes |
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