Analysis
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max time kernel
120s -
max time network
133s -
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, 14:46
Static task
static1
Behavioral task
behavioral1
Sample
c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe
Resource
win10v2004-20241007-en
General
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Target
c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe
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Size
69KB
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MD5
9cfc5c63be0deeef453ce5a86b7f8ff0
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SHA1
e5decea697f1af55d2e97f9f30fca430ea3f086d
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SHA256
c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebb
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SHA512
524c98087941b4738acc28804576667b8a235319af7ccebacbe891b3ea3acb4af9bfa89ed805509235b60d31da539e7fe6f3a5c8290e02386194a96702a18cc2
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SSDEEP
1536:1teqKDlXvkDB04f5Gn/L8FlADNt3d1Tw8P:OlG35GTslA5t37w8P
Malware Config
Signatures
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600" ihxikoan-efat.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "25600" ihxikoan-efat.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600" ihxikoan-efat.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600" ihxikoan-efat.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\{5951524C-4b59-4f4e-5951-524C4B594f4e} ihxikoan-efat.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5951524C-4b59-4f4e-5951-524C4B594f4e}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a" ihxikoan-efat.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5951524C-4b59-4f4e-5951-524C4B594f4e}\IsInstalled = "1" ihxikoan-efat.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5951524C-4b59-4f4e-5951-524C4B594f4e}\StubPath = "C:\\Windows\\system32\\akfeaxub.exe" ihxikoan-efat.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 ihxikoan-efat.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 = "a" ihxikoan-efat.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "C:\\Windows\\system32\\oudseadup-emum.exe" ihxikoan-efat.exe -
Executes dropped EXE 2 IoCs
pid Process 3180 ihxikoan-efat.exe 1608 ihxikoan-efat.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "25600" ihxikoan-efat.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600" ihxikoan-efat.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600" ihxikoan-efat.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600" ihxikoan-efat.exe -
description ioc Process Delete value \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger ihxikoan-efat.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}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a" ihxikoan-efat.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\DLLName = "C:\\Windows\\system32\\eabxuvud.dll" ihxikoan-efat.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup" ihxikoan-efat.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B} ihxikoan-efat.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify ihxikoan-efat.exe -
Drops file in System32 directory 9 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\oudseadup-emum.exe ihxikoan-efat.exe File created C:\Windows\SysWOW64\akfeaxub.exe ihxikoan-efat.exe File created C:\Windows\SysWOW64\eabxuvud.dll ihxikoan-efat.exe File opened for modification C:\Windows\SysWOW64\akfeaxub.exe ihxikoan-efat.exe File opened for modification C:\Windows\SysWOW64\eabxuvud.dll ihxikoan-efat.exe File opened for modification C:\Windows\SysWOW64\ihxikoan-efat.exe ihxikoan-efat.exe File opened for modification C:\Windows\SysWOW64\ihxikoan-efat.exe c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe File created C:\Windows\SysWOW64\ihxikoan-efat.exe c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe File created C:\Windows\SysWOW64\oudseadup-emum.exe ihxikoan-efat.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 c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ihxikoan-efat.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ihxikoan-efat.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 1608 ihxikoan-efat.exe 1608 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe 3180 ihxikoan-efat.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 32 c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe Token: SeDebugPrivilege 3180 ihxikoan-efat.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 32 wrote to memory of 3180 32 c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe 87 PID 32 wrote to memory of 3180 32 c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe 87 PID 32 wrote to memory of 3180 32 c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe 87 PID 3180 wrote to memory of 616 3180 ihxikoan-efat.exe 5 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 1608 3180 ihxikoan-efat.exe 88 PID 3180 wrote to memory of 1608 3180 ihxikoan-efat.exe 88 PID 3180 wrote to memory of 1608 3180 ihxikoan-efat.exe 88 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56 PID 3180 wrote to memory of 3496 3180 ihxikoan-efat.exe 56
Processes
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C:\Windows\system32\winlogon.exewinlogon.exe1⤵PID:616
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3496
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C:\Users\Admin\AppData\Local\Temp\c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe"C:\Users\Admin\AppData\Local\Temp\c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe"2⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:32 -
C:\Windows\SysWOW64\ihxikoan-efat.exe"C:\Windows\system32\ihxikoan-efat.exe"3⤵
- 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:3180 -
C:\Windows\SysWOW64\ihxikoan-efat.exe--k33p4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:1608
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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
MD5cf8fd5fe360dde8e29512d5d70554b43
SHA1172b47dd57c520f40b2781b2dc7a8d408a412221
SHA256c67e4e362905cc644376467a766b67ec9176795af795fe52e00c569aa3173b03
SHA512228389b885d78cb4095691f8d4d7a00c4b29d366e057181214df48b0d12dd5ff84fc8a3aed3fbc72b2fc969a64bf08853b0ee9fa319377ef6c5554569e5066b9
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Filesize
5KB
MD5f37b21c00fd81bd93c89ce741a88f183
SHA1b2796500597c68e2f5638e1101b46eaf32676c1c
SHA25676cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0
SHA512252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4
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Filesize
69KB
MD59cfc5c63be0deeef453ce5a86b7f8ff0
SHA1e5decea697f1af55d2e97f9f30fca430ea3f086d
SHA256c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebb
SHA512524c98087941b4738acc28804576667b8a235319af7ccebacbe891b3ea3acb4af9bfa89ed805509235b60d31da539e7fe6f3a5c8290e02386194a96702a18cc2
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Filesize
72KB
MD57d341bd64c81fe3e93a040fb9cb5980f
SHA137ef30c5ea0fd80c656b5c45a37deb95a11821da
SHA2569f174a1000cf9c356a397734e35064ad41019c453c84661102c5c9db1b97d353
SHA512387b344fe3719593e40e2450c52bea409218bccb1d61271757d4c9c219875b78ae62caac2e97b85043975689e56ffdaf86c97d011b3d1d467e5c1cc46840e5a2