General
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Target
b7f5d309309e41f43d6605b2007088afb5bf82c677bca8f50b392f27c3db8c1b
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Size
786KB
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Sample
230608-tyk68sgg74
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MD5
f2fe29e59327fca5b6a18ec8244e8060
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SHA1
0af3f379c5d010f4bb0564000291cceaef61481c
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SHA256
b7f5d309309e41f43d6605b2007088afb5bf82c677bca8f50b392f27c3db8c1b
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SHA512
3ded380f5c0264a878ad8837368a1f5fbe9fe46b9b3e7ec19ad7c643d0c3a626366191464db956d8aa235c7f27d35bf0bfc74ca941232f1bc82dfb81dfc3604c
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SSDEEP
12288:k3y3EwowJnHSgWM9eX58M42ZPCXY3kssswt1N85VyThLVQYBmb:k3bKHSgdQ5342ZqolsH1N85kThLVbEb
Static task
static1
Behavioral task
behavioral1
Sample
b7f5d309309e41f43d6605b2007088afb5bf82c677bca8f50b392f27c3db8c1b.exe
Resource
win10v2004-20230220-en
Malware Config
Extracted
djvu
http://zexeq.com/raud/get.php
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extension
.neon
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offline_id
0vTA6MA1m5nzrdffOCJC7YmAa4Lp6YNN8lOJ4mt1
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payload_url
http://colisumy.com/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
4.2
a81bcf59d85e6e13257840e65b9d1da8
https://steamcommunity.com/profiles/76561199511129510
https://t.me/rechnungsbetrag
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profile_id_v2
a81bcf59d85e6e13257840e65b9d1da8
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user_agent
Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.38 Safari/537.36 Brave/75
Targets
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Target
b7f5d309309e41f43d6605b2007088afb5bf82c677bca8f50b392f27c3db8c1b
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Size
786KB
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MD5
f2fe29e59327fca5b6a18ec8244e8060
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SHA1
0af3f379c5d010f4bb0564000291cceaef61481c
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SHA256
b7f5d309309e41f43d6605b2007088afb5bf82c677bca8f50b392f27c3db8c1b
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SHA512
3ded380f5c0264a878ad8837368a1f5fbe9fe46b9b3e7ec19ad7c643d0c3a626366191464db956d8aa235c7f27d35bf0bfc74ca941232f1bc82dfb81dfc3604c
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SSDEEP
12288:k3y3EwowJnHSgWM9eX58M42ZPCXY3kssswt1N85VyThLVQYBmb:k3bKHSgdQ5342ZqolsH1N85kThLVbEb
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Detected Djvu ransomware
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Downloads MZ/PE file
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Loads dropped DLL
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Modifies file permissions
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Accesses cryptocurrency files/wallets, possible credential harvesting
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of SetThreadContext
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