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Analysis
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max time kernel
149s -
max time network
123s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
01/05/2024, 19:56
Static task
static1
Behavioral task
behavioral1
Sample
2b1aebab5992f084e10ed9fbacaac61bea0ff101fc949e428c8fb762afbcbdfc.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2b1aebab5992f084e10ed9fbacaac61bea0ff101fc949e428c8fb762afbcbdfc.exe
Resource
win10v2004-20240419-en
General
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Target
2b1aebab5992f084e10ed9fbacaac61bea0ff101fc949e428c8fb762afbcbdfc.exe
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Size
72KB
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MD5
8b680245bd365e699f97fb0939425c81
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SHA1
54e602a446051ecc04728eda2e1add87726a94b4
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SHA256
2b1aebab5992f084e10ed9fbacaac61bea0ff101fc949e428c8fb762afbcbdfc
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SHA512
fda07b6edbbaa370380672f0ad9da190696bd719c529ce7e64c7985e4e11923a956d685a2a0e64945fe8fba97570d9e0ed799a593cc37de914785777875c3001
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SSDEEP
1536:xBoj3/OgHIerbSSuf9c/buo4iiugZb6hCPmXeu0XyxsdvDKci:noDvHDrbTuf9abJiugV6hyu0XyxsdvD8
Malware Config
Signatures
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600" esxivoad-coab.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "25600" esxivoad-coab.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600" esxivoad-coab.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600" esxivoad-coab.exe -
Modifies Installed Components in the registry 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{45424653-524b-4747-4542-4653524B4747} esxivoad-coab.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{45424653-524b-4747-4542-4653524B4747}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a" esxivoad-coab.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{45424653-524b-4747-4542-4653524B4747}\IsInstalled = "1" esxivoad-coab.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{45424653-524b-4747-4542-4653524B4747}\StubPath = "C:\\Windows\\system32\\tseanap-opeas.exe" esxivoad-coab.exe -
Sets file execution options in registry 2 TTPs 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe esxivoad-coab.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 = "a" esxivoad-coab.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "C:\\Windows\\system32\\claheap.exe" esxivoad-coab.exe -
Executes dropped EXE 2 IoCs
pid Process 376 esxivoad-coab.exe 4284 esxivoad-coab.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600" esxivoad-coab.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "25600" esxivoad-coab.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600" esxivoad-coab.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600" esxivoad-coab.exe -
Modifies WinLogon 2 TTPs 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B} esxivoad-coab.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify esxivoad-coab.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a" esxivoad-coab.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\DLLName = "C:\\Windows\\system32\\ecximit.dll" esxivoad-coab.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup" esxivoad-coab.exe -
Drops file in System32 directory 9 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\esxivoad-coab.exe 2b1aebab5992f084e10ed9fbacaac61bea0ff101fc949e428c8fb762afbcbdfc.exe File opened for modification C:\Windows\SysWOW64\claheap.exe esxivoad-coab.exe File created C:\Windows\SysWOW64\claheap.exe esxivoad-coab.exe File created C:\Windows\SysWOW64\ecximit.dll esxivoad-coab.exe File created C:\Windows\SysWOW64\esxivoad-coab.exe 2b1aebab5992f084e10ed9fbacaac61bea0ff101fc949e428c8fb762afbcbdfc.exe File opened for modification C:\Windows\SysWOW64\tseanap-opeas.exe esxivoad-coab.exe File created C:\Windows\SysWOW64\tseanap-opeas.exe esxivoad-coab.exe File opened for modification C:\Windows\SysWOW64\ecximit.dll esxivoad-coab.exe File opened for modification C:\Windows\SysWOW64\esxivoad-coab.exe esxivoad-coab.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 4284 esxivoad-coab.exe 4284 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe 376 esxivoad-coab.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 376 esxivoad-coab.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 4964 wrote to memory of 376 4964 2b1aebab5992f084e10ed9fbacaac61bea0ff101fc949e428c8fb762afbcbdfc.exe 85 PID 4964 wrote to memory of 376 4964 2b1aebab5992f084e10ed9fbacaac61bea0ff101fc949e428c8fb762afbcbdfc.exe 85 PID 4964 wrote to memory of 376 4964 2b1aebab5992f084e10ed9fbacaac61bea0ff101fc949e428c8fb762afbcbdfc.exe 85 PID 376 wrote to memory of 4284 376 esxivoad-coab.exe 86 PID 376 wrote to memory of 4284 376 esxivoad-coab.exe 86 PID 376 wrote to memory of 4284 376 esxivoad-coab.exe 86 PID 376 wrote to memory of 620 376 esxivoad-coab.exe 5 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55 PID 376 wrote to memory of 3380 376 esxivoad-coab.exe 55
Processes
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C:\Windows\system32\winlogon.exewinlogon.exe1⤵PID:620
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3380
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C:\Users\Admin\AppData\Local\Temp\2b1aebab5992f084e10ed9fbacaac61bea0ff101fc949e428c8fb762afbcbdfc.exe"C:\Users\Admin\AppData\Local\Temp\2b1aebab5992f084e10ed9fbacaac61bea0ff101fc949e428c8fb762afbcbdfc.exe"2⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4964 -
C:\Windows\SysWOW64\esxivoad-coab.exe"C:\Windows\SysWOW64\esxivoad-coab.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
PID:376 -
C:\Windows\SysWOW64\esxivoad-coab.exe--k33p4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:4284
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
73KB
MD5869ca41dc372d7a2c155f59c91355ba9
SHA169be9a297ad87e948edd432db0d8cd1d5d45fcbe
SHA256fa1f26c57e7be332d1d7203e5c2c97878075a842b53279ca05b376ad4502d734
SHA51250c04b0257af85279579708ccd2c7313be654dda681053b4c3c810d941d5cf526bc940c40e28078b7f5570bf8bfd1e7a2a97dc1e183a2679d70796706e73782a
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Filesize
5KB
MD5f37b21c00fd81bd93c89ce741a88f183
SHA1b2796500597c68e2f5638e1101b46eaf32676c1c
SHA25676cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0
SHA512252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4
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Filesize
70KB
MD528b026f861ccf9f6516fe149a5aeef25
SHA1ef97a03006bc5f3b0913d993428b19d83e86a941
SHA256bc5ce4eb6b1fe61b6de418654a3d5c019103cb04aeb531ccb2d89183d8f86707
SHA512b57aae6d2cf71dba091ece64b427dd338e10cd1127af504e84adf02e5f6871baf7c99e13faf3bd5b67faf001c7314f31b4e9a68269a5b84db07b3f54a7817603
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Filesize
72KB
MD530d5b0323cc2d8b2993c0eee679fd545
SHA17a1efcf4f553b352268a2a595a8e0e91398bb68b
SHA256a5001831e9b4db4794a0986b3861bf23be35fc5c02d829d3b7c0e05e3634a87b
SHA512cbec13dba965eee08efd3e93c140c5c84fc80ead5aabdad4fcf5c43893196cf4f352b085840f79b2d74d6ccf5e15ebb458ffc69680c99347bdb541c77fa30842