Analysis
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max time kernel
60s -
max time network
52s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
03-10-2022 23:29
Behavioral task
behavioral1
Sample
4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe
Resource
win7-20220901-en
General
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Target
4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe
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Size
350KB
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MD5
391233b3c78fd9b2a7a869e078b84980
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SHA1
793e261a01b2cc15d168f5bfb5a84c4efb67e7eb
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SHA256
4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc
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SHA512
260e1bb17b0086cf4fca441a0d733b1d740b3ad788a375fbfa4a47b13db99ea2d7e745e1ba902bad2806a8becaa23e3907037b085cf9be93c65bcb08e0875c69
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SSDEEP
6144:TyXu7IEBSsQ9ElMwm60lmqs7MTRGA3h3GVqdppJXEGhBukJF/KAwxFUOWdEmh:T3BdQLL4BE93NGVYZX9BukJlwxSJdEm
Malware Config
Signatures
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Drops file in Drivers directory 2 IoCs
Processes:
4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exedescription ioc process File created C:\Windows\SysWOW64\drivers\44f00f8f.sys 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe File created C:\Windows\SysWOW64\drivers\385b3a09.sys 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe -
Possible privilege escalation attempt 2 IoCs
Processes:
takeown.exeicacls.exepid process 1588 takeown.exe 968 icacls.exe -
Sets service image path in registry 2 TTPs 2 IoCs
Processes:
4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\44f00f8f\ImagePath = "\\??\\C:\\Windows\\SysWOW64\\drivers\\44f00f8f.sys" 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\385b3a09\ImagePath = "\\??\\C:\\Windows\\SysWOW64\\drivers\\385b3a09.sys" 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe -
Processes:
resource yara_rule behavioral1/memory/1380-55-0x0000000001000000-0x000000000112D000-memory.dmp upx behavioral1/memory/1380-56-0x0000000001000000-0x000000000112D000-memory.dmp upx behavioral1/memory/1380-61-0x0000000001000000-0x000000000112D000-memory.dmp upx -
Deletes itself 1 IoCs
Processes:
cmd.exepid process 1324 cmd.exe -
Modifies file permissions 1 TTPs 2 IoCs
Processes:
takeown.exeicacls.exepid process 1588 takeown.exe 968 icacls.exe -
Installs/modifies Browser Helper Object 2 TTPs 4 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
Processes:
4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exedescription ioc process Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{B4F3A835-0E21-4959-BA22-42B3008E02FF} 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{72853161-30C5-4D22-B7F9-0BBC1D38A37E} 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{18DF081C-E8AD-4283-A596-FA578C2EBDC3} 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe -
Drops file in System32 directory 5 IoCs
Processes:
4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exedescription ioc process File created C:\Windows\SysWOW64\wshtcpip.dll 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe File opened for modification C:\Windows\SysWOW64\goodsb.dll 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe File created C:\Windows\SysWOW64\goodsb.dll 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe File created C:\Windows\SysWOW64\ws2tcpip.dll 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe File opened for modification C:\Windows\SysWOW64\ws2tcpip.dll 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe -
Modifies registry class 4 IoCs
Processes:
4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\HOOK_ID 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\HOOK_ID\name = "4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe" 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\SYS_DLL 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\SYS_DLL\name = "fYjYqH2.dll" 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exepid process 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe -
Suspicious behavior: LoadsDriver 5 IoCs
Processes:
4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exepid process 464 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 464 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exetakeown.exedescription pid process Token: SeDebugPrivilege 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe Token: SeTakeOwnershipPrivilege 1588 takeown.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.execmd.exedescription pid process target process PID 1380 wrote to memory of 620 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe cmd.exe PID 1380 wrote to memory of 620 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe cmd.exe PID 1380 wrote to memory of 620 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe cmd.exe PID 1380 wrote to memory of 620 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe cmd.exe PID 620 wrote to memory of 1588 620 cmd.exe takeown.exe PID 620 wrote to memory of 1588 620 cmd.exe takeown.exe PID 620 wrote to memory of 1588 620 cmd.exe takeown.exe PID 620 wrote to memory of 1588 620 cmd.exe takeown.exe PID 620 wrote to memory of 968 620 cmd.exe icacls.exe PID 620 wrote to memory of 968 620 cmd.exe icacls.exe PID 620 wrote to memory of 968 620 cmd.exe icacls.exe PID 620 wrote to memory of 968 620 cmd.exe icacls.exe PID 1380 wrote to memory of 1324 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe cmd.exe PID 1380 wrote to memory of 1324 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe cmd.exe PID 1380 wrote to memory of 1324 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe cmd.exe PID 1380 wrote to memory of 1324 1380 4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe"C:\Users\Admin\AppData\Local\Temp\4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe"1⤵
- Drops file in Drivers directory
- Sets service image path in registry
- Installs/modifies Browser Helper Object
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.execmd.exe /c takeown /f C:\Windows\SysWOW64\wshtcpip.dll && icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\takeown.exetakeown /f C:\Windows\SysWOW64\wshtcpip.dll3⤵
- Possible privilege escalation attempt
- Modifies file permissions
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\icacls.exeicacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F3⤵
- Possible privilege escalation attempt
- Modifies file permissions
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C:\Windows\SysWOW64\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\ahnmove.bat2⤵
- Deletes itself
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\ahnmove.batFilesize
181B
MD5f3e9bc722d9822e59176e52ee1b07578
SHA194368e3df235344f89263dafe5eb300ad10b5f27
SHA2569d612d10a1def75ba27ce71b77afd710cb89ee480233fa476dddb3610e4dd99d
SHA512233eb8dce286f86bbe0aadc76488c0bc587906407bffd71b73c9e8fd728cba48e0d08ccfb55b73a0ed01caffc2931f6ccc861c4d47e6f0b81a7211c535c1d09b
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memory/620-57-0x0000000000000000-mapping.dmp
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memory/968-59-0x0000000000000000-mapping.dmp
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memory/1324-60-0x0000000000000000-mapping.dmp
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memory/1380-54-0x00000000757A1000-0x00000000757A3000-memory.dmpFilesize
8KB
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memory/1380-55-0x0000000001000000-0x000000000112D000-memory.dmpFilesize
1.2MB
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memory/1380-56-0x0000000001000000-0x000000000112D000-memory.dmpFilesize
1.2MB
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memory/1380-61-0x0000000001000000-0x000000000112D000-memory.dmpFilesize
1.2MB
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memory/1588-58-0x0000000000000000-mapping.dmp