General
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Target
yuha.exe
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Size
514KB
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Sample
230629-tbxxhseg9v
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MD5
5afc6111908fca00d93b74b0357b9994
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SHA1
6f9a09cd6970c9797b33025968ccec1d4256159c
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SHA256
6aa14b8612361f8cd34a86edcf341aaee819fb9a0cc18d51165e52afdcbe5e60
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SHA512
bcfa9fb991eb51bb867e5a0d9ba16e5f9e5e5ea27cf8337bf6a07eb072a048d686a594483e7011386045409b3442f4721f680a22d40ec1e6195dd1118110832f
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SSDEEP
12288:z0kY/pqltvGEwhcDhDxHvkAbefOcg6I0rOLIZ6:z0nxqtvqhOXv0rOMY
Static task
static1
Behavioral task
behavioral1
Sample
yuha.exe
Resource
win7-20230621-en
Behavioral task
behavioral2
Sample
yuha.exe
Resource
win10v2004-20230621-en
Malware Config
Extracted
amadey
3.83
45.9.74.80/0bjdn2Z/index.php
Extracted
smokeloader
pub5
Extracted
smokeloader
2022
http://aapu.at/tmp/
http://poudineh.com/tmp/
http://firsttrusteedrx.ru/tmp/
http://kingpirate.ru/tmp/
Extracted
gcleaner
45.12.253.56
45.12.253.72
45.12.253.98
45.12.253.75
Extracted
smokeloader
up3
Extracted
smokeloader
2020
http://host-file-host6.com/
http://host-host-file8.com/
Targets
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Target
yuha.exe
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Size
514KB
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MD5
5afc6111908fca00d93b74b0357b9994
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SHA1
6f9a09cd6970c9797b33025968ccec1d4256159c
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SHA256
6aa14b8612361f8cd34a86edcf341aaee819fb9a0cc18d51165e52afdcbe5e60
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SHA512
bcfa9fb991eb51bb867e5a0d9ba16e5f9e5e5ea27cf8337bf6a07eb072a048d686a594483e7011386045409b3442f4721f680a22d40ec1e6195dd1118110832f
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SSDEEP
12288:z0kY/pqltvGEwhcDhDxHvkAbefOcg6I0rOLIZ6:z0nxqtvqhOXv0rOMY
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Glupteba payload
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Modifies boot configuration data using bcdedit
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Downloads MZ/PE file
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Drops file in Drivers directory
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Modifies Windows Firewall
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Possible attempt to disable PatchGuard
Rootkits can use kernel patching to embed themselves in an operating system.
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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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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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Suspicious use of SetThreadContext
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MITRE ATT&CK Matrix ATT&CK v6
Persistence
Modify Existing Service
1Registry Run Keys / Startup Folder
1Scheduled Task
1Defense Evasion
Disabling Security Tools
2Modify Registry
4Impair Defenses
1Install Root Certificate
1