General
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Target
yuha.exe
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Size
501KB
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Sample
230701-kexlgshe9t
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MD5
70f331abf74c5b4351e71a45d834ada1
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SHA1
e828bd4f00d8f63c4205a9be7c6da1239e21e707
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SHA256
68af9af3506c7a35ef60026b6662cbc1fda0b36007a6eb48a974e4d7574db21f
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SHA512
aae6cc3c590d9cad22b58eadbe51dae8812dc111a8bf274ec5c5ee6a62d7f7ae6ce2851ae33ac816b0f7eb1d4eb009f0945198f96b19a6c97642d2caf209f39e
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SSDEEP
6144:Iyv496N16r+vkN9SUWcSVVKoxxfWf4qa9wR4uPH20nfoaNAQftrDdpiDKGASKGkP:bvLK+mSUWZXKojWf4+RVHhAlASKGk19
Static task
static1
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
501KB
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MD5
70f331abf74c5b4351e71a45d834ada1
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SHA1
e828bd4f00d8f63c4205a9be7c6da1239e21e707
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SHA256
68af9af3506c7a35ef60026b6662cbc1fda0b36007a6eb48a974e4d7574db21f
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SHA512
aae6cc3c590d9cad22b58eadbe51dae8812dc111a8bf274ec5c5ee6a62d7f7ae6ce2851ae33ac816b0f7eb1d4eb009f0945198f96b19a6c97642d2caf209f39e
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SSDEEP
6144:Iyv496N16r+vkN9SUWcSVVKoxxfWf4qa9wR4uPH20nfoaNAQftrDdpiDKGASKGkP:bvLK+mSUWZXKojWf4+RVHhAlASKGk19
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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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Drops file in System32 directory
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v6
Persistence
Modify Existing Service
1Registry Run Keys / Startup Folder
1Scheduled Task
1Defense Evasion
Disabling Security Tools
2Impair Defenses
1Install Root Certificate
1Modify Registry
4