Analysis
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max time kernel
120s -
max time network
19s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-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 Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{42435852-4a46-4b45-4243-58524A464b45}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a" oumvidoat-nid.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{42435852-4a46-4b45-4243-58524A464b45}\IsInstalled = "1" oumvidoat-nid.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{42435852-4a46-4b45-4243-58524A464b45}\StubPath = "C:\\Windows\\system32\\oucsukar.exe" oumvidoat-nid.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{42435852-4a46-4b45-4243-58524A464b45} 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 2744 oumvidoat-nid.exe 2396 oumvidoat-nid.exe -
Loads dropped DLL 3 IoCs
pid Process 572 f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe 572 f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe 2744 oumvidoat-nid.exe -
description ioc Process 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 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 -
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 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 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 -
Drops file in System32 directory 9 IoCs
description ioc Process File created C:\Windows\SysWOW64\oumboafoot-oxid.dll 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 opened for modification C:\Windows\SysWOW64\eagfusoar.exe oumvidoat-nid.exe File created C:\Windows\SysWOW64\eagfusoar.exe oumvidoat-nid.exe 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\oumboafoot-oxid.dll oumvidoat-nid.exe File opened for modification C:\Windows\SysWOW64\oumvidoat-nid.exe f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe -
System Location Discovery: System Language Discovery 1 TTPs 2 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 -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2396 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe 2744 oumvidoat-nid.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 572 f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe Token: SeDebugPrivilege 2744 oumvidoat-nid.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 572 wrote to memory of 2744 572 f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe 29 PID 572 wrote to memory of 2744 572 f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe 29 PID 572 wrote to memory of 2744 572 f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe 29 PID 572 wrote to memory of 2744 572 f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe 29 PID 2744 wrote to memory of 2396 2744 oumvidoat-nid.exe 30 PID 2744 wrote to memory of 2396 2744 oumvidoat-nid.exe 30 PID 2744 wrote to memory of 2396 2744 oumvidoat-nid.exe 30 PID 2744 wrote to memory of 2396 2744 oumvidoat-nid.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe"C:\Users\Admin\AppData\Local\Temp\f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:572 -
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
- Loads dropped DLL
- 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:2744 -
C:\Windows\SysWOW64\oumvidoat-nid.exeùù¿çç¤3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:2396
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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
MD5fc8eb462713bbe21cf3da2f75be252c3
SHA18400d7079014214015d5ef95a440f0881524a6c1
SHA2561e9884abcec97162225627510fb6645676b1e138b70c05bf6469824e596613b5
SHA512516afb2e44faecc7eaa3f339f445eca67eb4b334021867180bd9037b73ab2ba59905023f78b9da4e65b17184788f366908705000c2517b2a59f4ad099188fb79
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Filesize
70KB
MD5ddd9b24948fdf40a6c60e45b90c6c47c
SHA184ca59e393b600ea3e19b1be3465492348b30a70
SHA25665e9cdbd9659da30126a09d0930f11032826ce66b1e97ea8fe3a327d55217b28
SHA5129a3d5da70dd56ed2786bd895b7a9740913c3b47056f0f13ff2d5b0bae888a40e2b6c8297d45d9d88878ca3b62ef2724eb643d1214796365aea7556f36c0cf504
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Filesize
5KB
MD5f37b21c00fd81bd93c89ce741a88f183
SHA1b2796500597c68e2f5638e1101b46eaf32676c1c
SHA25676cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0
SHA512252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4
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Filesize
68KB
MD5b2de2b7bb31d9cab09124a0b6ceda640
SHA1ab62464ebab3e8ded51aa543ac81fd5953dcb2ae
SHA256f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122
SHA51213c155bad0da692ce1eef50ff569f4dca6153c5b1344d9fe7d0f6aa51fc97f89734fee569eb6d26f982a216ac503d9679c9bfa7863c373e5ee3234301f29367f