Analysis
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max time kernel
119s -
max time network
109s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
04/11/2024, 03:24
Static task
static1
Behavioral task
behavioral1
Sample
f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe
Resource
win10v2004-20241007-en
General
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Target
f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe
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Size
68KB
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MD5
b2de2b7bb31d9cab09124a0b6ceda640
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SHA1
ab62464ebab3e8ded51aa543ac81fd5953dcb2ae
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SHA256
f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122
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SHA512
13c155bad0da692ce1eef50ff569f4dca6153c5b1344d9fe7d0f6aa51fc97f89734fee569eb6d26f982a216ac503d9679c9bfa7863c373e5ee3234301f29367f
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SSDEEP
1536:1teqKDlXvCDB04f5Gn/L8FlADNt3d1+awJLBs:ulg35GTslA5t3GawJLO
Malware Config
Signatures
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600" oumvidoat-nid.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600" oumvidoat-nid.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "25600" oumvidoat-nid.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600" oumvidoat-nid.exe -
Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 IoCs
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{53504445-424a-5748-5350-4445424A5748} oumvidoat-nid.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{53504445-424a-5748-5350-4445424A5748}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a" oumvidoat-nid.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{53504445-424a-5748-5350-4445424A5748}\IsInstalled = "1" oumvidoat-nid.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{53504445-424a-5748-5350-4445424A5748}\StubPath = "C:\\Windows\\system32\\oucsukar.exe" oumvidoat-nid.exe -
Event Triggered Execution: Image File Execution Options Injection 1 TTPs 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe oumvidoat-nid.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 = "a" oumvidoat-nid.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "C:\\Windows\\system32\\eagfusoar.exe" oumvidoat-nid.exe -
Executes dropped EXE 2 IoCs
pid Process 2684 oumvidoat-nid.exe 4984 oumvidoat-nid.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600" oumvidoat-nid.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600" oumvidoat-nid.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600" oumvidoat-nid.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "25600" oumvidoat-nid.exe -
description ioc Process Delete value \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger oumvidoat-nid.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} oumvidoat-nid.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify oumvidoat-nid.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a" oumvidoat-nid.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\DLLName = "C:\\Windows\\system32\\oumboafoot-oxid.dll" oumvidoat-nid.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup" oumvidoat-nid.exe -
Drops file in System32 directory 9 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\oucsukar.exe oumvidoat-nid.exe File created C:\Windows\SysWOW64\oucsukar.exe oumvidoat-nid.exe File opened for modification C:\Windows\SysWOW64\oumvidoat-nid.exe oumvidoat-nid.exe File created C:\Windows\SysWOW64\oumvidoat-nid.exe f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe File created C:\Windows\SysWOW64\eagfusoar.exe oumvidoat-nid.exe File opened for modification C:\Windows\SysWOW64\oumboafoot-oxid.dll oumvidoat-nid.exe File created C:\Windows\SysWOW64\oumboafoot-oxid.dll oumvidoat-nid.exe File opened for modification C:\Windows\SysWOW64\oumvidoat-nid.exe f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe File opened for modification C:\Windows\SysWOW64\eagfusoar.exe oumvidoat-nid.exe -
System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language oumvidoat-nid.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language oumvidoat-nid.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 4984 oumvidoat-nid.exe 4984 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe 2684 oumvidoat-nid.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3640 f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe Token: SeDebugPrivilege 2684 oumvidoat-nid.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3640 wrote to memory of 2684 3640 f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe 86 PID 3640 wrote to memory of 2684 3640 f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe 86 PID 3640 wrote to memory of 2684 3640 f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe 86 PID 2684 wrote to memory of 4984 2684 oumvidoat-nid.exe 87 PID 2684 wrote to memory of 4984 2684 oumvidoat-nid.exe 87 PID 2684 wrote to memory of 4984 2684 oumvidoat-nid.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe"C:\Users\Admin\AppData\Local\Temp\f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe"1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3640 -
C:\Windows\SysWOW64\oumvidoat-nid.exe"C:\Windows\system32\oumvidoat-nid.exe"2⤵
- Windows security bypass
- Boot or Logon Autostart Execution: Active Setup
- Event Triggered Execution: Image File Execution Options Injection
- Executes dropped EXE
- Windows security modification
- Indicator Removal: Clear Persistence
- Modifies WinLogon
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2684 -
C:\Windows\SysWOW64\oumvidoat-nid.exeùù¿çç¤3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:4984
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Active Setup
1Winlogon Helper DLL
1Event Triggered Execution
1Image File Execution Options Injection
1Privilege Escalation
Boot or Logon Autostart Execution
2Active Setup
1Winlogon Helper DLL
1Event Triggered Execution
1Image File Execution Options Injection
1Replay Monitor
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Downloads
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Filesize
71KB
MD5ab08d33f48637dfb1ba2c6fbe20b98ba
SHA12aa52f20131866d0e5db18b4cee13da72d9efd3e
SHA2560fa059c6c6c8abd1868c82196876b17a4d770c60fdbd87588b8ed1e0b78a1877
SHA51288fa7057bef82c33b32395d5fd26136c195861e084f962910a11a59df26dae97cdafdc1e14f13489bd804fb4a2a6d1bc602fe21190b27a784dcc3f02eabb5a03
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Filesize
70KB
MD514f90ae2a3c27fed5bcf3f4d14c02938
SHA18d5ff2d25a4e8d3f581aa64932d074dfed7ef468
SHA25610e5e3ef657cd6604aee95a747f30fb61f9daa0c17b205c282f9a83f662ff1b0
SHA512d5d59144a5c94b687f1a01f46800221ee868a3c2d92b6949fe10b3d256953c937386a7ef0f0f316f3cda8bc6b960f8fa3e8f98c6ddccc19401d690f75c18a2f0
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Filesize
5KB
MD5f37b21c00fd81bd93c89ce741a88f183
SHA1b2796500597c68e2f5638e1101b46eaf32676c1c
SHA25676cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0
SHA512252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4
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Filesize
68KB
MD5b2de2b7bb31d9cab09124a0b6ceda640
SHA1ab62464ebab3e8ded51aa543ac81fd5953dcb2ae
SHA256f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122
SHA51213c155bad0da692ce1eef50ff569f4dca6153c5b1344d9fe7d0f6aa51fc97f89734fee569eb6d26f982a216ac503d9679c9bfa7863c373e5ee3234301f29367f