MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a mass of external links, including a critical link to a known malicious redirector at `https://ttraff.cc/pify?keyword=febrile+neutropenia+prevention+guidelines`. The document body, though heavily obfuscated, contains this URL and other PDF links, suggesting a lure to external malicious content. The ML classifier also strongly flagged this PDF as malicious.
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=febrile+neutropenia+prevention+guidelines
- http://files.joyingrief.com/uploads/1/3/1/0/131069808/viribufapi-xomovuvo-raseduj.pdf
- http://xudog.martelart.com/uploads/1/3/0/7/130738731/2427366.pdf
- http://files.desireandsuccess.com/uploads/1/3/1/4/131453253/3407488.pdf
- https://cdn.shopify.com/s/files/1/0431/7688/6431/files/rixuwamu.pdf
- https://cdn.shopify.com/s/files/1/0437/8463/4530/files/62559133018.pdf
- https://cdn.shopify.com/s/files/1/0439/1347/8312/files/76302412814.pdf
- https://cdn.shopify.com/s/files/1/0433/9692/3555/files/my_beautifier_lyrics.pdf
- https://cdn.shopify.com/s/files/1/0465/1863/2598/files/47938208055.pdf
- https://cdn.shopify.com/s/files/1/0429/9754/7157/files/86813659155.pdf
- https://cdn.shopify.com/s/files/1/0434/5459/5224/files/moxiwinepegekokanefikasow.pdf
- https://cdn.shopify.com/s/files/1/0449/8112/5278/files/52176718860.pdf
- https://cdn.shopify.com/s/files/1/0437/4790/1592/files/wefijovapofuvixovotimeta.pdf
- https://cdn.shopify.com/s/files/1/0430/6593/3973/files/27418103083.pdf
- https://cdn.shopify.com/s/files/1/0439/8402/7806/files/socialismo_democratico.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_off0000df78.bin4ca1cc24920771314720e1c9ea343374ed54db135d063cc1d6d900f2fdcff335 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF78 | 5280 bytes |
font_01_sfnt_off0000f177.bin468f2077871b650d5ec85fe33ef9ad7b5fad7a9b999774f11688ec2f824c4d63 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF177 | 15644 bytes |
font_02_sfnt_off0001228d.bindc5cbbf61a8f4f6ee329843406fa4b8c11ef30ffe5c8da1bfc032fb961a1f704 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1228D | 16320 bytes |
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