Analysis
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max time kernel
149s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
04/11/2024, 03:29
Static task
static1
Behavioral task
behavioral1
Sample
f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe
Resource
win7-20240903-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\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 -
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\{4B484254-484a-4641-4B48-4254484A4641}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a" oumvidoat-nid.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4B484254-484a-4641-4B48-4254484A4641}\IsInstalled = "1" oumvidoat-nid.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4B484254-484a-4641-4B48-4254484A4641}\StubPath = "C:\\Windows\\system32\\oucsukar.exe" oumvidoat-nid.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4B484254-484a-4641-4B48-4254484A4641} 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 2460 oumvidoat-nid.exe 2804 oumvidoat-nid.exe -
Loads dropped DLL 3 IoCs
pid Process 2680 f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe 2680 f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe 2460 oumvidoat-nid.exe -
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 -
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\eagfusoar.exe oumvidoat-nid.exe File opened for modification C:\Windows\SysWOW64\oumvidoat-nid.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 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\oucsukar.exe oumvidoat-nid.exe File created C:\Windows\SysWOW64\oucsukar.exe oumvidoat-nid.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 f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language oumvidoat-nid.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2804 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe 2460 oumvidoat-nid.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2680 f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe Token: SeDebugPrivilege 2460 oumvidoat-nid.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2680 wrote to memory of 2460 2680 f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe 30 PID 2680 wrote to memory of 2460 2680 f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe 30 PID 2680 wrote to memory of 2460 2680 f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe 30 PID 2680 wrote to memory of 2460 2680 f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe 30 PID 2460 wrote to memory of 2804 2460 oumvidoat-nid.exe 31 PID 2460 wrote to memory of 2804 2460 oumvidoat-nid.exe 31 PID 2460 wrote to memory of 2804 2460 oumvidoat-nid.exe 31 PID 2460 wrote to memory of 2804 2460 oumvidoat-nid.exe 31
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:2680 -
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:2460 -
C:\Windows\SysWOW64\oumvidoat-nid.exeùù¿çç¤3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:2804
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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
MD51dc1ddec966300e973b7c0b5e8fe6fb1
SHA1ce47c7d3153c1db9c555218583211f2c09e9a445
SHA25672cb1d6485b9d35c5599df7778b44af32ebd89318eb83cfb4a9f022ebb2cc559
SHA5127b96c97978d7521b99f550b56f0f048fea3859a5e7fc9d5a3b234415b5b499a108791ce71d0ca02419d29df7619f0356de0d6a9d0a18c45dca94ee33924c869d
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Filesize
70KB
MD5c296641c044f2b121d608146a7664578
SHA128d701554c0b08f260d5b8a624d0ff0eb19b15de
SHA256e264332d4d7665daa5e06187e52a5c7fbfeba92adcce14a45a24bac26260b6b4
SHA5124463ae09751d25679338f4d12b32f1b6cec71cbf81310dc789dc44c6ccbd484b7d79810e0ecd734f4d0ac9158d1b0568e330f7975a9b8ef6a7248655ec4f4981
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Filesize
5KB
MD5f37b21c00fd81bd93c89ce741a88f183
SHA1b2796500597c68e2f5638e1101b46eaf32676c1c
SHA25676cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0
SHA512252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4
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Filesize
68KB
MD5b2de2b7bb31d9cab09124a0b6ceda640
SHA1ab62464ebab3e8ded51aa543ac81fd5953dcb2ae
SHA256f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122
SHA51213c155bad0da692ce1eef50ff569f4dca6153c5b1344d9fe7d0f6aa51fc97f89734fee569eb6d26f982a216ac503d9679c9bfa7863c373e5ee3234301f29367f