Analysis
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max time kernel
149s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
23-05-2024 02:48
Static task
static1
Behavioral task
behavioral1
Sample
c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe
Resource
win10v2004-20240508-en
General
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Target
c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe
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Size
70KB
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MD5
f1814993078ced5d7f8119e225f6b53d
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SHA1
b8e5228026f384cf2a346334adeb7c0f5854e576
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SHA256
c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e
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SHA512
fbdd1afd9f9a6d595f9817f9f04df3b7b0887e57c8d91f216de1c5c7340ea3025abe2c56e1885afdf36566eca1868ac8ca8a866d3ef3dee1bf40186d2d5bc266
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SSDEEP
1536:1teqKDlXvCDB04f5Gn/L8FlADNt3d1Hw8B:Olg35GTslA5t3/w8B
Malware Config
Signatures
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Processes:
ulcoxoox.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "25600" ulcoxoox.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600" ulcoxoox.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600" ulcoxoox.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600" ulcoxoox.exe -
Modifies Installed Components in the registry 2 TTPs 4 IoCs
Processes:
ulcoxoox.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4256524B-4950-5453-4256-524B49505453}\StubPath = "C:\\Windows\\system32\\acmihoac-oudum.exe" ulcoxoox.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4256524B-4950-5453-4256-524B49505453} ulcoxoox.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4256524B-4950-5453-4256-524B49505453}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a" ulcoxoox.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4256524B-4950-5453-4256-524B49505453}\IsInstalled = "1" ulcoxoox.exe -
Sets file execution options in registry 2 TTPs 3 IoCs
Processes:
ulcoxoox.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe ulcoxoox.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 = "a" ulcoxoox.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "C:\\Windows\\system32\\eamdisah-ocid.exe" ulcoxoox.exe -
Executes dropped EXE 2 IoCs
Processes:
ulcoxoox.exeulcoxoox.exepid process 2400 ulcoxoox.exe 1192 ulcoxoox.exe -
Processes:
ulcoxoox.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "25600" ulcoxoox.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600" ulcoxoox.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600" ulcoxoox.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600" ulcoxoox.exe -
Modifies WinLogon 2 TTPs 5 IoCs
Processes:
ulcoxoox.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B} ulcoxoox.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify ulcoxoox.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a" ulcoxoox.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\DLLName = "C:\\Windows\\system32\\uknuboav-ucat.dll" ulcoxoox.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup" ulcoxoox.exe -
Drops file in System32 directory 9 IoCs
Processes:
ulcoxoox.exec54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exedescription ioc process File created C:\Windows\SysWOW64\eamdisah-ocid.exe ulcoxoox.exe File opened for modification C:\Windows\SysWOW64\acmihoac-oudum.exe ulcoxoox.exe File created C:\Windows\SysWOW64\acmihoac-oudum.exe ulcoxoox.exe File created C:\Windows\SysWOW64\uknuboav-ucat.dll ulcoxoox.exe File created C:\Windows\SysWOW64\ulcoxoox.exe c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe File opened for modification C:\Windows\SysWOW64\eamdisah-ocid.exe ulcoxoox.exe File opened for modification C:\Windows\SysWOW64\uknuboav-ucat.dll ulcoxoox.exe File opened for modification C:\Windows\SysWOW64\ulcoxoox.exe ulcoxoox.exe File opened for modification C:\Windows\SysWOW64\ulcoxoox.exe c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
ulcoxoox.exeulcoxoox.exepid process 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 1192 ulcoxoox.exe 1192 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe 2400 ulcoxoox.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exeulcoxoox.exedescription pid process Token: SeDebugPrivilege 4472 c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe Token: SeDebugPrivilege 2400 ulcoxoox.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exeulcoxoox.exedescription pid process target process PID 4472 wrote to memory of 2400 4472 c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe ulcoxoox.exe PID 4472 wrote to memory of 2400 4472 c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe ulcoxoox.exe PID 4472 wrote to memory of 2400 4472 c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe ulcoxoox.exe PID 2400 wrote to memory of 616 2400 ulcoxoox.exe winlogon.exe PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 1192 2400 ulcoxoox.exe ulcoxoox.exe PID 2400 wrote to memory of 1192 2400 ulcoxoox.exe ulcoxoox.exe PID 2400 wrote to memory of 1192 2400 ulcoxoox.exe ulcoxoox.exe PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE PID 2400 wrote to memory of 3532 2400 ulcoxoox.exe Explorer.EXE
Processes
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C:\Windows\system32\winlogon.exewinlogon.exe1⤵
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
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C:\Users\Admin\AppData\Local\Temp\c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe"C:\Users\Admin\AppData\Local\Temp\c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe"2⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\ulcoxoox.exe"C:\Windows\system32\ulcoxoox.exe"3⤵
- Windows security bypass
- Modifies Installed Components in the registry
- Sets file execution options in registry
- Executes dropped EXE
- Windows security modification
- Modifies WinLogon
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\ulcoxoox.exe--k33p4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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C:\Windows\SysWOW64\acmihoac-oudum.exeFilesize
72KB
MD5258dfc876d452b3eb02cf810ae2e9d93
SHA1c002d567269c4ea237d314e806ce49cc7742c9e0
SHA256e196cb9d58e08f1910ba2cfd9e97a33dae4c50326155a451c35633092bc7f064
SHA51218213031f9241d42513ffc7acaacfdb2d73ed78326028bb70ac778aac0a4cfec54d4c8bac32bc2e729e921b29ebe92c33cafcea8425c84f99e7cc9cb10284b56
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C:\Windows\SysWOW64\eamdisah-ocid.exeFilesize
73KB
MD532ef5e44985a09108d8d6fba81f01236
SHA16e4c3ca601c23cfaad7ed2d4cdb97f7732fbc464
SHA25694cabff58d429ae81b5aa059fa805c44e892b1cfa1b8ffd395097350368177e7
SHA512386441cabef2cf9effc935bf2e0221d91027f0171fc7c58221a262bf01157059acf06c1af33b0e83a1815bee135b2e431594e955935d6aaf532d60cd2d4dbde9
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C:\Windows\SysWOW64\uknuboav-ucat.dllFilesize
5KB
MD5f37b21c00fd81bd93c89ce741a88f183
SHA1b2796500597c68e2f5638e1101b46eaf32676c1c
SHA25676cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0
SHA512252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4
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C:\Windows\SysWOW64\ulcoxoox.exeFilesize
70KB
MD5f1814993078ced5d7f8119e225f6b53d
SHA1b8e5228026f384cf2a346334adeb7c0f5854e576
SHA256c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e
SHA512fbdd1afd9f9a6d595f9817f9f04df3b7b0887e57c8d91f216de1c5c7340ea3025abe2c56e1885afdf36566eca1868ac8ca8a866d3ef3dee1bf40186d2d5bc266
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memory/1192-50-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/2400-49-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/4472-4-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB