Analysis
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max time kernel
167s -
max time network
196s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220113 -
submitted
11-02-2022 06:35
Static task
static1
Behavioral task
behavioral1
Sample
b9fa8aec976af38d2a8a92a994aed5c2ef2771b1ef9030351cccef354dbe4b4d.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
b9fa8aec976af38d2a8a92a994aed5c2ef2771b1ef9030351cccef354dbe4b4d.exe
Resource
win10v2004-en-20220113
General
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Target
b9fa8aec976af38d2a8a92a994aed5c2ef2771b1ef9030351cccef354dbe4b4d.exe
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Size
55KB
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MD5
f35aef4680d54776183a63f5f453a13c
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SHA1
d742f7d9ae9f6531b6232192d027a22a3c61e3ed
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SHA256
b9fa8aec976af38d2a8a92a994aed5c2ef2771b1ef9030351cccef354dbe4b4d
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SHA512
a0ddfb66f2635ff018b7e99538bae71609308b16a7527bde372c5a83f0573e37fef3f6377c884c61e8a3b0c6f83a28dd36b443c2df20b0e44fd993f5270e4aaf
Malware Config
Extracted
C:\instructions.html
<strong>[email protected]</strong></li>
Signatures
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GlobeImposter
GlobeImposter is a ransomware first seen in 2017.
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Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce b9fa8aec976af38d2a8a92a994aed5c2ef2771b1ef9030351cccef354dbe4b4d.exe Set value (str) \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\BrowserUpdateCheck = "C:\\Users\\Admin\\AppData\\Roaming\\b9fa8aec976af38d2a8a92a994aed5c2ef2771b1ef9030351cccef354dbe4b4d.exe" b9fa8aec976af38d2a8a92a994aed5c2ef2771b1ef9030351cccef354dbe4b4d.exe -
Drops desktop.ini file(s) 5 IoCs
description ioc Process File opened for modification C:\Users\Public\Libraries\desktop.ini b9fa8aec976af38d2a8a92a994aed5c2ef2771b1ef9030351cccef354dbe4b4d.exe File opened for modification C:\Users\Public\desktop.ini b9fa8aec976af38d2a8a92a994aed5c2ef2771b1ef9030351cccef354dbe4b4d.exe File opened for modification C:\Users\Public\Videos\desktop.ini b9fa8aec976af38d2a8a92a994aed5c2ef2771b1ef9030351cccef354dbe4b4d.exe File opened for modification C:\Users\Public\Pictures\desktop.ini b9fa8aec976af38d2a8a92a994aed5c2ef2771b1ef9030351cccef354dbe4b4d.exe File opened for modification C:\Users\Public\Music\desktop.ini b9fa8aec976af38d2a8a92a994aed5c2ef2771b1ef9030351cccef354dbe4b4d.exe -
Drops file in Windows directory 8 IoCs
description ioc Process File opened for modification C:\Windows\SoftwareDistribution\ReportingEvents.log svchost.exe File opened for modification C:\Windows\Logs\CBS\CBS.log TiWorker.exe File opened for modification C:\Windows\WinSxS\pending.xml TiWorker.exe File opened for modification C:\Windows\WindowsUpdate.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.edb svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm svchost.exe -
Kills process with taskkill 1 IoCs
pid Process 4840 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4312 b9fa8aec976af38d2a8a92a994aed5c2ef2771b1ef9030351cccef354dbe4b4d.exe 4312 b9fa8aec976af38d2a8a92a994aed5c2ef2771b1ef9030351cccef354dbe4b4d.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 4840 taskkill.exe Token: SeShutdownPrivilege 720 svchost.exe Token: SeCreatePagefilePrivilege 720 svchost.exe Token: SeShutdownPrivilege 720 svchost.exe Token: SeCreatePagefilePrivilege 720 svchost.exe Token: SeShutdownPrivilege 720 svchost.exe Token: SeCreatePagefilePrivilege 720 svchost.exe Token: SeSecurityPrivilege 732 TiWorker.exe Token: SeRestorePrivilege 732 TiWorker.exe Token: SeBackupPrivilege 732 TiWorker.exe Token: SeBackupPrivilege 732 TiWorker.exe Token: SeRestorePrivilege 732 TiWorker.exe Token: SeSecurityPrivilege 732 TiWorker.exe Token: SeBackupPrivilege 732 TiWorker.exe Token: SeRestorePrivilege 732 TiWorker.exe Token: SeSecurityPrivilege 732 TiWorker.exe Token: SeBackupPrivilege 732 TiWorker.exe Token: SeRestorePrivilege 732 TiWorker.exe Token: SeSecurityPrivilege 732 TiWorker.exe Token: SeBackupPrivilege 732 TiWorker.exe Token: SeRestorePrivilege 732 TiWorker.exe Token: SeSecurityPrivilege 732 TiWorker.exe Token: SeBackupPrivilege 732 TiWorker.exe Token: SeRestorePrivilege 732 TiWorker.exe Token: SeSecurityPrivilege 732 TiWorker.exe Token: SeBackupPrivilege 732 TiWorker.exe Token: SeRestorePrivilege 732 TiWorker.exe Token: SeSecurityPrivilege 732 TiWorker.exe Token: SeBackupPrivilege 732 TiWorker.exe Token: SeRestorePrivilege 732 TiWorker.exe Token: SeSecurityPrivilege 732 TiWorker.exe Token: SeBackupPrivilege 732 TiWorker.exe Token: SeRestorePrivilege 732 TiWorker.exe Token: SeSecurityPrivilege 732 TiWorker.exe Token: SeBackupPrivilege 732 TiWorker.exe Token: SeRestorePrivilege 732 TiWorker.exe Token: SeSecurityPrivilege 732 TiWorker.exe Token: SeBackupPrivilege 732 TiWorker.exe Token: SeRestorePrivilege 732 TiWorker.exe Token: SeSecurityPrivilege 732 TiWorker.exe Token: SeBackupPrivilege 732 TiWorker.exe Token: SeRestorePrivilege 732 TiWorker.exe Token: SeSecurityPrivilege 732 TiWorker.exe Token: SeBackupPrivilege 732 TiWorker.exe Token: SeRestorePrivilege 732 TiWorker.exe Token: SeSecurityPrivilege 732 TiWorker.exe Token: SeBackupPrivilege 732 TiWorker.exe Token: SeRestorePrivilege 732 TiWorker.exe Token: SeSecurityPrivilege 732 TiWorker.exe Token: SeBackupPrivilege 732 TiWorker.exe Token: SeRestorePrivilege 732 TiWorker.exe Token: SeSecurityPrivilege 732 TiWorker.exe Token: SeBackupPrivilege 732 TiWorker.exe Token: SeRestorePrivilege 732 TiWorker.exe Token: SeSecurityPrivilege 732 TiWorker.exe Token: SeBackupPrivilege 732 TiWorker.exe Token: SeRestorePrivilege 732 TiWorker.exe Token: SeSecurityPrivilege 732 TiWorker.exe Token: SeBackupPrivilege 732 TiWorker.exe Token: SeRestorePrivilege 732 TiWorker.exe Token: SeSecurityPrivilege 732 TiWorker.exe Token: SeBackupPrivilege 732 TiWorker.exe Token: SeRestorePrivilege 732 TiWorker.exe Token: SeSecurityPrivilege 732 TiWorker.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4312 wrote to memory of 4840 4312 b9fa8aec976af38d2a8a92a994aed5c2ef2771b1ef9030351cccef354dbe4b4d.exe 83 PID 4312 wrote to memory of 4840 4312 b9fa8aec976af38d2a8a92a994aed5c2ef2771b1ef9030351cccef354dbe4b4d.exe 83 PID 4312 wrote to memory of 4840 4312 b9fa8aec976af38d2a8a92a994aed5c2ef2771b1ef9030351cccef354dbe4b4d.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\b9fa8aec976af38d2a8a92a994aed5c2ef2771b1ef9030351cccef354dbe4b4d.exe"C:\Users\Admin\AppData\Local\Temp\b9fa8aec976af38d2a8a92a994aed5c2ef2771b1ef9030351cccef354dbe4b4d.exe"1⤵
- Adds Run key to start application
- Drops desktop.ini file(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4312 -
C:\Windows\SysWOW64\taskkill.exetaskkill /F /T /PID 43122⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4840
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:720
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C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exeC:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:732