Analysis
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max time kernel
120s -
max time network
20s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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\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 -
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 (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{564F5248-5042-4142-564F-524850424142}\IsInstalled = "1" ihxikoan-efat.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{564F5248-5042-4142-564F-524850424142}\StubPath = "C:\\Windows\\system32\\akfeaxub.exe" ihxikoan-efat.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{564F5248-5042-4142-564F-524850424142} ihxikoan-efat.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{564F5248-5042-4142-564F-524850424142}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a" ihxikoan-efat.exe -
Event Triggered Execution: Image File Execution Options Injection 1 TTPs 3 IoCs
description ioc Process 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 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 -
Executes dropped EXE 2 IoCs
pid Process 1664 ihxikoan-efat.exe 1164 ihxikoan-efat.exe -
Loads dropped DLL 3 IoCs
pid Process 2404 c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe 2404 c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe 1664 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}\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 Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a" ihxikoan-efat.exe -
Drops file in System32 directory 9 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\akfeaxub.exe ihxikoan-efat.exe File created 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 c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe File created C:\Windows\SysWOW64\ihxikoan-efat.exe c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe File opened for modification C:\Windows\SysWOW64\oudseadup-emum.exe ihxikoan-efat.exe File created C:\Windows\SysWOW64\oudseadup-emum.exe ihxikoan-efat.exe File created C:\Windows\SysWOW64\eabxuvud.dll ihxikoan-efat.exe File opened for modification C:\Windows\SysWOW64\ihxikoan-efat.exe ihxikoan-efat.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 c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ihxikoan-efat.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1164 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe 1664 ihxikoan-efat.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2404 c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe Token: SeDebugPrivilege 1664 ihxikoan-efat.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 2404 wrote to memory of 1664 2404 c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe 30 PID 2404 wrote to memory of 1664 2404 c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe 30 PID 2404 wrote to memory of 1664 2404 c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe 30 PID 2404 wrote to memory of 1664 2404 c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe 30 PID 1664 wrote to memory of 432 1664 ihxikoan-efat.exe 5 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1164 1664 ihxikoan-efat.exe 31 PID 1664 wrote to memory of 1164 1664 ihxikoan-efat.exe 31 PID 1664 wrote to memory of 1164 1664 ihxikoan-efat.exe 31 PID 1664 wrote to memory of 1164 1664 ihxikoan-efat.exe 31 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21 PID 1664 wrote to memory of 1212 1664 ihxikoan-efat.exe 21
Processes
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C:\Windows\system32\winlogon.exewinlogon.exe1⤵PID:432
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:1212
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C:\Users\Admin\AppData\Local\Temp\c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe"C:\Users\Admin\AppData\Local\Temp\c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebbN.exe"2⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2404 -
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
- 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:1664 -
C:\Windows\SysWOW64\ihxikoan-efat.exe--k33p4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:1164
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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
Loading Replay Monitor...
Downloads
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Filesize
71KB
MD5f4afe1627a150675b9c1d9dca66591ef
SHA10daf4a14b10403800487f354a19da2c3c87c592f
SHA256d84bdd90bb2086fc0fe874e505df3136e211e4c291592be5f9fde9bea2addea9
SHA51212f357a56c03fcd46b7d376f000c71e6f4cac6ca63734f3d7eeee845cf480935bbd0b2e1ba0693ffad36d03e0901765c2df769225f3b3f57466211f0fe483609
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Filesize
5KB
MD5f37b21c00fd81bd93c89ce741a88f183
SHA1b2796500597c68e2f5638e1101b46eaf32676c1c
SHA25676cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0
SHA512252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4
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Filesize
72KB
MD5f625b00a3a28afb2fa44578fe038b16b
SHA13f521c55d7afe6a7386bd720990d2fc0ae009036
SHA256042be31199cd36a9894082690a67b55e70e5e9adf541d3a1e764242585ee1a05
SHA5127a66c4c4a3b546a6ebbcfb80bc18fc6406fb9917781e9c6aea4960cf85abfa72b8f6941dbd7cdf6b04a2620b9132d11f18ca968dc3ce01262dc4de109058f56e
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Filesize
69KB
MD59cfc5c63be0deeef453ce5a86b7f8ff0
SHA1e5decea697f1af55d2e97f9f30fca430ea3f086d
SHA256c5831bb6e3eb0a1b7ebc4479644878b37edaf3d0eb13e2e2c1953b0b74349ebb
SHA512524c98087941b4738acc28804576667b8a235319af7ccebacbe891b3ea3acb4af9bfa89ed805509235b60d31da539e7fe6f3a5c8290e02386194a96702a18cc2