Analysis
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max time kernel
118s -
max time network
71s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
13-10-2022 15:24
Behavioral task
behavioral1
Sample
5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe
Resource
win7-20220812-en
General
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Target
5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe
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Size
350KB
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MD5
604a2c50b2e9b31583db35a8acb2c620
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SHA1
6f6265c5183e1bdb8f679869278c1de9485b676d
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SHA256
5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c
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SHA512
a96ddb0406e67890a24319b09ba0760c3186050f3ac44050cc43945946e5036da18fb222badc3d0537e9896736aa030948b4742df0158bc922afb5b8136557f1
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SSDEEP
6144:1yXu7IEBSsQ9ElMwm60lmqs7MTRGA3h3GVqdppJXEGhBukJF/KAwxFUOWdEmh:13BdQLL4BE93NGVYZX9BukJlwxSJdEm
Malware Config
Signatures
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Drops file in Drivers directory 2 IoCs
Processes:
5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exedescription ioc process File created C:\Windows\SysWOW64\drivers\51980804.sys 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe File created C:\Windows\SysWOW64\drivers\2d333d82.sys 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe -
Possible privilege escalation attempt 2 IoCs
Processes:
icacls.exetakeown.exepid process 1532 icacls.exe 632 takeown.exe -
Sets service image path in registry 2 TTPs 2 IoCs
Processes:
5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\51980804\ImagePath = "\\??\\C:\\Windows\\SysWOW64\\drivers\\51980804.sys" 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\2d333d82\ImagePath = "\\??\\C:\\Windows\\SysWOW64\\drivers\\2d333d82.sys" 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe -
Processes:
resource yara_rule behavioral1/memory/968-55-0x0000000001000000-0x000000000112D000-memory.dmp upx behavioral1/memory/968-60-0x0000000001000000-0x000000000112D000-memory.dmp upx -
Deletes itself 1 IoCs
Processes:
cmd.exepid process 1460 cmd.exe -
Modifies file permissions 1 TTPs 2 IoCs
Processes:
takeown.exeicacls.exepid process 632 takeown.exe 1532 icacls.exe -
Installs/modifies Browser Helper Object 2 TTPs 4 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
Processes:
5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exedescription ioc process Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{B4F3A835-0E21-4959-BA22-42B3008E02FF} 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{72853161-30C5-4D22-B7F9-0BBC1D38A37E} 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{18DF081C-E8AD-4283-A596-FA578C2EBDC3} 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe -
Drops file in System32 directory 5 IoCs
Processes:
5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exedescription ioc process File opened for modification C:\Windows\SysWOW64\goodsb.dll 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe File created C:\Windows\SysWOW64\goodsb.dll 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe File created C:\Windows\SysWOW64\ws2tcpip.dll 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe File opened for modification C:\Windows\SysWOW64\ws2tcpip.dll 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe File created C:\Windows\SysWOW64\wshtcpip.dll 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe -
Modifies registry class 4 IoCs
Processes:
5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\HOOK_ID 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\HOOK_ID\name = "5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe" 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\SYS_DLL 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\SYS_DLL\name = "YaHyuw.dll" 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exepid process 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe -
Suspicious behavior: LoadsDriver 5 IoCs
Processes:
5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exepid process 464 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 464 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exetakeown.exedescription pid process Token: SeDebugPrivilege 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe Token: SeTakeOwnershipPrivilege 632 takeown.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.execmd.exedescription pid process target process PID 968 wrote to memory of 1992 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe cmd.exe PID 968 wrote to memory of 1992 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe cmd.exe PID 968 wrote to memory of 1992 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe cmd.exe PID 968 wrote to memory of 1992 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe cmd.exe PID 1992 wrote to memory of 632 1992 cmd.exe takeown.exe PID 1992 wrote to memory of 632 1992 cmd.exe takeown.exe PID 1992 wrote to memory of 632 1992 cmd.exe takeown.exe PID 1992 wrote to memory of 632 1992 cmd.exe takeown.exe PID 1992 wrote to memory of 1532 1992 cmd.exe icacls.exe PID 1992 wrote to memory of 1532 1992 cmd.exe icacls.exe PID 1992 wrote to memory of 1532 1992 cmd.exe icacls.exe PID 1992 wrote to memory of 1532 1992 cmd.exe icacls.exe PID 968 wrote to memory of 1460 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe cmd.exe PID 968 wrote to memory of 1460 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe cmd.exe PID 968 wrote to memory of 1460 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe cmd.exe PID 968 wrote to memory of 1460 968 5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.exe"C:\Users\Admin\AppData\Local\Temp\5aec41b20cfb38cbec578dacb8107b16604158d1ddb657b3249171e24386307c.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
MD51d5cf75494986baacad836db86ae5796
SHA1bee6632378b5c399dc11c081f1a97c8d97bfaf44
SHA256489667aa55398fbff770a3ff7bcb5c78c72c02d68ea6a708a4f3dc30af562253
SHA512c1de5825a53f43eb5cf3af3635d770358cd8f751b5211e55e551dbf231350e67f0850d8dea9fb53990fec654dc9a65eedf0f8c027d9126baeb801a46c2b45057
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memory/632-57-0x0000000000000000-mapping.dmp
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memory/968-54-0x0000000076831000-0x0000000076833000-memory.dmpFilesize
8KB
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memory/968-55-0x0000000001000000-0x000000000112D000-memory.dmpFilesize
1.2MB
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memory/968-60-0x0000000001000000-0x000000000112D000-memory.dmpFilesize
1.2MB
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memory/1460-59-0x0000000000000000-mapping.dmp
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memory/1532-58-0x0000000000000000-mapping.dmp
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memory/1992-56-0x0000000000000000-mapping.dmp