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Analysis
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max time kernel
91s -
max time network
137s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
06/11/2022, 05:32
Static task
static1
Behavioral task
behavioral1
Sample
b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe
Resource
win7-20220812-en
windows7-x64
2 signatures
150 seconds
General
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Target
b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe
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Size
69KB
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MD5
36372eec32766a73d248f6e6f2d8a590
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SHA1
215a422bc0efb7b303c083e9deee034d34d4c0db
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SHA256
b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750
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SHA512
4f66e778473754ce1c3f85c9e6d931712c6aa5c640bc1f5a348c5f2a23cada885ee9fbcbeea70f729000a0e22fde2ce39686a87e9c0bc0bf883a373fc6e1dc25
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SSDEEP
1536:gZxeCSzXkR7Osy6YNrbQOQGw9sKzo2nFWN1E+AwsP:gZxvY07OsyBQPKGsTE+UP
Malware Config
Signatures
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe -
resource yara_rule behavioral2/memory/4152-132-0x0000000002310000-0x0000000003336000-memory.dmp upx behavioral2/memory/4152-134-0x0000000002310000-0x0000000003336000-memory.dmp upx -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SYSTEM.INI b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe Token: SeDebugPrivilege 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 4152 wrote to memory of 776 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe 8 PID 4152 wrote to memory of 780 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe 13 PID 4152 wrote to memory of 408 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe 9 PID 4152 wrote to memory of 2280 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe 26 PID 4152 wrote to memory of 2288 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe 63 PID 4152 wrote to memory of 2424 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe 60 PID 4152 wrote to memory of 2640 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe 35 PID 4152 wrote to memory of 3076 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe 34 PID 4152 wrote to memory of 3284 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe 33 PID 4152 wrote to memory of 3380 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe 32 PID 4152 wrote to memory of 3444 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe 31 PID 4152 wrote to memory of 3580 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe 56 PID 4152 wrote to memory of 3884 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe 55 PID 4152 wrote to memory of 4740 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe 53 PID 4152 wrote to memory of 4200 4152 b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe 46 -
System policy modification 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe
Processes
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C:\Windows\system32\fontdrvhost.exe"fontdrvhost.exe"1⤵PID:776
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C:\Windows\system32\dwm.exe"dwm.exe"1⤵PID:408
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C:\Windows\system32\fontdrvhost.exe"fontdrvhost.exe"1⤵PID:780
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C:\Windows\system32\sihost.exesihost.exe1⤵PID:2280
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵PID:3444
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵PID:3380
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}1⤵PID:3284
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc1⤵PID:3076
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:2640
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C:\Users\Admin\AppData\Local\Temp\b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe"C:\Users\Admin\AppData\Local\Temp\b581b4b656f909b2078ccd07ec92726142fe687be550ab7e68c68330b91f3750.exe"2⤵
- UAC bypass
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4152
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C:\Windows\system32\backgroundTaskHost.exe"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca1⤵PID:4200
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵PID:4740
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵PID:3884
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C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca1⤵PID:3580
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C:\Windows\system32\taskhostw.exetaskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}1⤵PID:2424
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc1⤵PID:2288