MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. This, combined with a high ML classifier score and a heuristic indicating a PDF link farm, strongly suggests a malicious intent. The document body, though heavily obfuscated, contains text related to 'Acute gastroenteritis treatment pdf', likely a lure to disguise the malicious links. The primary attack pattern involves redirecting the user to a potentially harmful site.
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=acute+gastroenteritis+treatment+pdf
- http://files.brettjonesportfolio.com/uploads/1/3/2/3/132302970/fijimabuwatifubemuv.pdf
- http://files.ancientsonespeak.com/uploads/1/3/0/8/130813855/mekivamonipeb.pdf
- http://files.corralesconstructionllc.com/uploads/1/3/1/8/131871618/doruned.pdf
- http://files.khunterart.com/uploads/1/3/1/4/131453399/lukoxifosofug.pdf
- https://cdn.shopify.com/s/files/1/0428/5923/3443/files/81085534013.pdf
- https://cdn.shopify.com/s/files/1/0435/7950/6847/files/sabapubegewudofazuzu.pdf
- https://cdn.shopify.com/s/files/1/0434/6901/3157/files/70225551694.pdf
- https://cdn.shopify.com/s/files/1/0433/5131/0488/files/66822771112.pdf
- https://cdn.shopify.com/s/files/1/0431/9540/0349/files/44488308193.pdf
- https://cdn.shopify.com/s/files/1/0427/4287/4278/files/manaxe.pdf
- https://cdn.shopify.com/s/files/1/0432/8056/4392/files/87655904948.pdf
- https://cdn.shopify.com/s/files/1/0437/5488/1175/files/95682658230.pdf
- https://cdn.shopify.com/s/files/1/0430/9899/6889/files/88792711885.pdf
- https://cdn.shopify.com/s/files/1/0433/7618/1400/files/sixevabobufazanipez.pdf
- https://cdn.shopify.com/s/files/1/0432/0028/2783/files/zuxorexopuluxozawejisugun.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_off00010786.binac7e9575d180c31a9fa1524c7afd989770dc8b18ba3323f2ea5d8022d5157376 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10786 | 5316 bytes |
font_01_sfnt_off0001197b.bin2b0942b836ff073e6b9cc640be234cc4a29d7f96c69b504c02d0cc6807efc046 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1197B | 11044 bytes |
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