MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links that redirect to malicious infrastructure, specifically identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body, though heavily obfuscated, contains text related to 'cerebral angiogram pdf' and includes the malicious URL, suggesting a lure to a phishing or malware distribution site. 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.ru/pify?keyword=cerebral+angiogram+pdf
- http://files.transcend-ed.com/uploads/1/3/1/6/131606431/2291430.pdf
- http://lipoj.sbcsocialsciences.com/uploads/1/3/0/7/130739415/6778664.pdf
- http://files.orbmet.org/uploads/1/3/0/9/130969884/977fae60.pdf
- https://cdn.shopify.com/s/files/1/0430/5331/8306/files/tukevumirip.pdf
- https://cdn.shopify.com/s/files/1/0430/7759/9383/files/23785529924.pdf
- https://cdn.shopify.com/s/files/1/0437/7418/1534/files/ante_nicene_fathers_volume_7.pdf
- https://cdn.shopify.com/s/files/1/0429/5481/7690/files/wamowawuguxavuxik.pdf
- https://cdn.shopify.com/s/files/1/0430/9752/2329/files/jidamonefoju.pdf
- https://cdn.shopify.com/s/files/1/0429/7595/3049/files/93601568734.pdf
- https://cdn.shopify.com/s/files/1/0435/2750/4024/files/tudovufobivasasoli.pdf
- https://cdn.shopify.com/s/files/1/0438/0459/0242/files/26920558266.pdf
- https://cdn.shopify.com/s/files/1/0429/7529/7689/files/sources_of_groundwater_pollution.pdf
- https://cdn.shopify.com/s/files/1/0430/3526/3138/files/75237459207.pdf
- https://cdn.shopify.com/s/files/1/0438/8493/7384/files/21734107877.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12410546401.pdf
- https://cdn.shopify.com/s/files/1/0435/4818/0634/files/female_body_parts_name_with_picture.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_off00006bf2.bin68693dd82d7ffe740e6bdb70ab5a016e7c5dddf89d4b663f4acc3d59bda742f4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BF2 | 5228 bytes |
font_01_sfnt_off00007d94.bin8a4848ee3c8630db9830e865fc85b77aad30f644abd450a9a3962061457ff301 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D94 | 10224 bytes |
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