Analysis
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max time kernel
149s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
20-11-2024 23:36
Static task
static1
Behavioral task
behavioral1
Sample
64fc4c4a3b1aa4fc68f6fe7ec93fca6c5e1fc3c324c91e6a381fa2e3bff118ae.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
64fc4c4a3b1aa4fc68f6fe7ec93fca6c5e1fc3c324c91e6a381fa2e3bff118ae.exe
Resource
win10v2004-20241007-en
General
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Target
64fc4c4a3b1aa4fc68f6fe7ec93fca6c5e1fc3c324c91e6a381fa2e3bff118ae.exe
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Size
88KB
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MD5
d27f881e3ba08db6f564a223d983fe6b
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SHA1
6d9f70f5afc0faad40ea8ae460df9131258de158
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SHA256
64fc4c4a3b1aa4fc68f6fe7ec93fca6c5e1fc3c324c91e6a381fa2e3bff118ae
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SHA512
702dc6f675b46cacdcaa10b81763cfc77b62594b47ec19b9d7e6a36448b04b3b357ed8888a2349df8ca4602ac389ef7fabdb4f608f8771be2e13871b742b4a08
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SSDEEP
1536:suajDPMGd66ayZ/zko42j99ORmWMdvsBSTdpz5YrlcxVT2:/aXEQZ/zko42j99OoWyV/PT2
Malware Config
Signatures
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "24064" fsofoh-atooc.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "24064" fsofoh-atooc.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "24064" fsofoh-atooc.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "24064" fsofoh-atooc.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\{50494445-5552-5959-5049-444555525959}\StubPath = "C:\\Windows\\system32\\anhexab.exe" fsofoh-atooc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{50494445-5552-5959-5049-444555525959} fsofoh-atooc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{50494445-5552-5959-5049-444555525959}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a" fsofoh-atooc.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{50494445-5552-5959-5049-444555525959}\IsInstalled = "1" fsofoh-atooc.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 fsofoh-atooc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 = "a" fsofoh-atooc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "C:\\Windows\\system32\\oulsivet.exe" fsofoh-atooc.exe -
Executes dropped EXE 2 IoCs
pid Process 2820 fsofoh-atooc.exe 2896 fsofoh-atooc.exe -
Loads dropped DLL 3 IoCs
pid Process 2716 64fc4c4a3b1aa4fc68f6fe7ec93fca6c5e1fc3c324c91e6a381fa2e3bff118ae.exe 2716 64fc4c4a3b1aa4fc68f6fe7ec93fca6c5e1fc3c324c91e6a381fa2e3bff118ae.exe 2820 fsofoh-atooc.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "24064" fsofoh-atooc.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "24064" fsofoh-atooc.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "24064" fsofoh-atooc.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "24064" fsofoh-atooc.exe -
description ioc Process Delete value \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger fsofoh-atooc.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} fsofoh-atooc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify fsofoh-atooc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a" fsofoh-atooc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\DLLName = "C:\\Windows\\system32\\oscoomut.dll" fsofoh-atooc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup" fsofoh-atooc.exe -
Drops file in System32 directory 17 IoCs
description ioc Process File created C:\Windows\SysWOW64\fsofoh-atooc.exe 64fc4c4a3b1aa4fc68f6fe7ec93fca6c5e1fc3c324c91e6a381fa2e3bff118ae.exe File created C:\Windows\SysWOW64\oulsivet.exe fsofoh-atooc.exe File opened for modification C:\Windows\SysWOW64\oscoomut.dll fsofoh-atooc.exe File opened for modification C:\Windows\SysWOW64\winrnt.exe fsofoh-atooc.exe File opened for modification C:\Windows\SysWOW64\idbg32.exe fsofoh-atooc.exe File opened for modification C:\Windows\SysWOW64\fsofoh-atooc.exe 64fc4c4a3b1aa4fc68f6fe7ec93fca6c5e1fc3c324c91e6a381fa2e3bff118ae.exe File created C:\Windows\SysWOW64\oscoomut.dll fsofoh-atooc.exe File opened for modification C:\Windows\SysWOW64\RECOVER32.DLL fsofoh-atooc.exe File opened for modification C:\Windows\SysWOW64\gymspzd.dll fsofoh-atooc.exe File opened for modification C:\Windows\SysWOW64\oulsivet.exe fsofoh-atooc.exe File opened for modification C:\Windows\SysWOW64\anhexab.exe fsofoh-atooc.exe File opened for modification C:\Windows\SysWOW64\rmass.exe fsofoh-atooc.exe File opened for modification C:\Windows\SysWOW64\ntdbg.exe fsofoh-atooc.exe File created C:\Windows\SysWOW64\anhexab.exe fsofoh-atooc.exe File opened for modification C:\Windows\SysWOW64\aset32.exe fsofoh-atooc.exe File opened for modification C:\Windows\SysWOW64\ahuy.exe fsofoh-atooc.exe File opened for modification C:\Windows\SysWOW64\fsofoh-atooc.exe fsofoh-atooc.exe -
resource yara_rule behavioral1/files/0x000a00000001202c-1.dat upx behavioral1/memory/2820-10-0x0000000000400000-0x0000000000418000-memory.dmp upx behavioral1/memory/2820-44-0x0000000000400000-0x0000000000418000-memory.dmp upx behavioral1/memory/2896-49-0x0000000000400000-0x0000000000418000-memory.dmp upx -
Drops file in Program Files directory 8 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Common Files\System\aset32.exe fsofoh-atooc.exe File opened for modification C:\Program Files (x86)\Common Files\System\ahuy.exe fsofoh-atooc.exe File opened for modification C:\Program Files (x86)\Common Files\System\idbg32.exe fsofoh-atooc.exe File opened for modification C:\Program Files (x86)\Common Files\System\ntdbg.exe fsofoh-atooc.exe File opened for modification C:\Program Files (x86)\Common Files\System\RECOVER32.DLL fsofoh-atooc.exe File opened for modification C:\Program Files (x86)\Common Files\System\gymspzd.dll fsofoh-atooc.exe File opened for modification C:\Program Files (x86)\Common Files\System\winrnt.exe fsofoh-atooc.exe File opened for modification C:\Program Files (x86)\Common Files\System\rmass.exe fsofoh-atooc.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 64fc4c4a3b1aa4fc68f6fe7ec93fca6c5e1fc3c324c91e6a381fa2e3bff118ae.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language fsofoh-atooc.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2896 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe 2820 fsofoh-atooc.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2820 fsofoh-atooc.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 2716 wrote to memory of 2820 2716 64fc4c4a3b1aa4fc68f6fe7ec93fca6c5e1fc3c324c91e6a381fa2e3bff118ae.exe 30 PID 2716 wrote to memory of 2820 2716 64fc4c4a3b1aa4fc68f6fe7ec93fca6c5e1fc3c324c91e6a381fa2e3bff118ae.exe 30 PID 2716 wrote to memory of 2820 2716 64fc4c4a3b1aa4fc68f6fe7ec93fca6c5e1fc3c324c91e6a381fa2e3bff118ae.exe 30 PID 2716 wrote to memory of 2820 2716 64fc4c4a3b1aa4fc68f6fe7ec93fca6c5e1fc3c324c91e6a381fa2e3bff118ae.exe 30 PID 2820 wrote to memory of 424 2820 fsofoh-atooc.exe 5 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 2896 2820 fsofoh-atooc.exe 31 PID 2820 wrote to memory of 2896 2820 fsofoh-atooc.exe 31 PID 2820 wrote to memory of 2896 2820 fsofoh-atooc.exe 31 PID 2820 wrote to memory of 2896 2820 fsofoh-atooc.exe 31 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21 PID 2820 wrote to memory of 1196 2820 fsofoh-atooc.exe 21
Processes
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C:\Windows\system32\winlogon.exewinlogon.exe1⤵PID:424
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:1196
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C:\Users\Admin\AppData\Local\Temp\64fc4c4a3b1aa4fc68f6fe7ec93fca6c5e1fc3c324c91e6a381fa2e3bff118ae.exe"C:\Users\Admin\AppData\Local\Temp\64fc4c4a3b1aa4fc68f6fe7ec93fca6c5e1fc3c324c91e6a381fa2e3bff118ae.exe"2⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2716 -
C:\Windows\SysWOW64\fsofoh-atooc.exe"C:\Windows\SysWOW64\fsofoh-atooc.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
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2820 -
C:\Windows\SysWOW64\fsofoh-atooc.exe--k33p4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:2896
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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
88KB
MD5d3b1d5f0b5af0c7c39dfc9c1029b8f11
SHA1c3629702ad5aebce96ee6bb7ae18ee22a2f1713e
SHA2561f103daef4e2b05eb7febe5ef276db015b6e3cd2ec71b14f5247370b0451f592
SHA51289b6dea297d7f4fe9649b83256794bd76e661e9dbb676088255d13f4fd86ce5ef62175609f8460ba13f07763e3c5705c1f649583732e5266dbc98bb437bd5873
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Filesize
5KB
MD5c8521a5fdd1c9387d536f599d850b195
SHA1a543080665107b7e32bcc1ed19dbfbc1d2931356
SHA256fa8f77b6daf775d66de9d27c1d896168a792057358e518c00e72b8964b966ca5
SHA512541500e2cd502852a007d29badc1a1848d187245f78ec272281bab290cc6e308f0ae6d1b96863e0c30a176b16c6cf7e63e08a8de81a84615e4710e7164a805cd
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Filesize
89KB
MD5add81486878541bb7680ae5d26d9993b
SHA1ab6831543ab1aeeb5f15224f4ab4d13440a9500b
SHA25643c890a6a7b78a26146966dcc473184c0a0bb083a3060a30da77de302edc73cc
SHA51249f2cb58a9003fba86220a9871c879eb9f9074c031e625e3ca71d2769faee7328407a3ddd2e5abd2ff050b52c0e3a25172bdead762f3d781085985bc196e3660
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Filesize
86KB
MD594cb7998b34f50262087cbd5c1fa259f
SHA1859280d3145ed8867d8c2316c38f1749a92a939b
SHA256a73c41ed78e7d2f7c28cbb50e56e6c7da98788141dfe7be8f596c695a9da73ec
SHA5129aa2e67118c1b7402ffa3e83df8e252fcae297dc63c70e491244141bf263d24bf42d3d539e06e4b4918271082d15021d14d89c9df0ccc76145a4851d3039a8d7