Analysis
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max time kernel
34s -
max time network
47s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
11-10-2022 16:02
Static task
static1
Behavioral task
behavioral1
Sample
104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75.exe
Resource
win10v2004-20220901-en
General
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Target
104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75.exe
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Size
36KB
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MD5
177fda2ae82ae84dd122ce4b81040960
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SHA1
163246fe46f98a747ed37ad3394d5e5f35c906ff
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SHA256
104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75
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SHA512
f657d40f7dced48fe5300fea3e334caca87106f94990336d5bdeed1a4eeca3cb180b1b75f1d95c7430b7ff3af2cf090140c9265938efc3c96b4626ad17553eb2
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SSDEEP
768:/KtoFHcuipk3Sw1p0DNaPKB02Isxpjdn9Dp:/quZFSwAaPKB0In9Dp
Malware Config
Signatures
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Possible privilege escalation attempt 2 IoCs
Processes:
takeown.exeicacls.exepid process 848 takeown.exe 1504 icacls.exe -
Modifies file permissions 1 TTPs 2 IoCs
Processes:
icacls.exetakeown.exepid process 1504 icacls.exe 848 takeown.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75.exedescription ioc process Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run 104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\NaCJ = "C:\\Windows\\system32\\vkie.exe" 104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75.exe -
Drops file in System32 directory 2 IoCs
Processes:
104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75.exedescription ioc process File created C:\Windows\SysWOW64\vkie.exe 104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75.exe File opened for modification C:\Windows\SysWOW64\vkie.exe 104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75.exepid process 1072 104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75.exedescription pid process target process PID 1072 wrote to memory of 848 1072 104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75.exe takeown.exe PID 1072 wrote to memory of 848 1072 104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75.exe takeown.exe PID 1072 wrote to memory of 848 1072 104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75.exe takeown.exe PID 1072 wrote to memory of 848 1072 104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75.exe takeown.exe PID 1072 wrote to memory of 1504 1072 104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75.exe icacls.exe PID 1072 wrote to memory of 1504 1072 104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75.exe icacls.exe PID 1072 wrote to memory of 1504 1072 104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75.exe icacls.exe PID 1072 wrote to memory of 1504 1072 104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75.exe icacls.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75.exe"C:\Users\Admin\AppData\Local\Temp\104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75.exe"1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\takeown.exeC:\Windows\system32\takeown.exe /f "C:\Windows\system32\vkie.exe"2⤵
- Possible privilege escalation attempt
- Modifies file permissions
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C:\Windows\SysWOW64\icacls.exeC:\Windows\system32\icacls.exe "C:\Windows\system32\vkie.exe" /grant Users:F2⤵
- Possible privilege escalation attempt
- Modifies file permissions
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Windows\SysWOW64\vkie.exeFilesize
36KB
MD5177fda2ae82ae84dd122ce4b81040960
SHA1163246fe46f98a747ed37ad3394d5e5f35c906ff
SHA256104b880b8b19cd80a44b4d6689fe7b5c1732e1648555651b20ef694aafeb2c75
SHA512f657d40f7dced48fe5300fea3e334caca87106f94990336d5bdeed1a4eeca3cb180b1b75f1d95c7430b7ff3af2cf090140c9265938efc3c96b4626ad17553eb2
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memory/848-56-0x0000000000000000-mapping.dmp
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memory/1504-57-0x0000000000000000-mapping.dmp