Analysis
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max time kernel
180s -
max time network
191s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
07-11-2022 09:25
Static task
static1
Behavioral task
behavioral1
Sample
f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe
Resource
win10v2004-20220812-en
General
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Target
f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe
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Size
44KB
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MD5
0ed25ef75b69f6e095b59f64722c20f6
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SHA1
820231547d0897ad02feaf87a20db4410aefed6e
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SHA256
f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97
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SHA512
df6152bbd2af56b2b11e52a5363e75dd9fa6b17d49281bfd9ce6ef9c7b3566f3c6c27870bbe1c5725e56a6c0b7ac39335d355c94aa9dd1ed98247e05346c9256
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SSDEEP
768:aJyujySX3upUXBA9PgY7XaJHhWh/gk/CdYivUH+X3g:EPDWMBA9PrOTKYk7I3g
Malware Config
Signatures
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Possible privilege escalation attempt 2 IoCs
Processes:
takeown.exeicacls.exepid process 2328 takeown.exe 1632 icacls.exe -
Modifies file permissions 1 TTPs 2 IoCs
Processes:
takeown.exeicacls.exepid process 2328 takeown.exe 1632 icacls.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exedescription ioc process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\KpMhj = "c:\\windows\\system32\\cbonm.exe" f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe -
Drops file in System32 directory 2 IoCs
Processes:
f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exedescription ioc process File created \??\c:\windows\SysWOW64\cbonm.exe f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe File opened for modification \??\c:\windows\SysWOW64\cbonm.exe f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exepid process 2288 f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exedescription pid process target process PID 2288 wrote to memory of 2328 2288 f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe takeown.exe PID 2288 wrote to memory of 2328 2288 f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe takeown.exe PID 2288 wrote to memory of 2328 2288 f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe takeown.exe PID 2288 wrote to memory of 1632 2288 f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe icacls.exe PID 2288 wrote to memory of 1632 2288 f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe icacls.exe PID 2288 wrote to memory of 1632 2288 f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe icacls.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe"C:\Users\Admin\AppData\Local\Temp\f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97.exe"1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2288 -
C:\Windows\SysWOW64\takeown.exeC:\Windows\system32\takeown.exe /f "c:\windows\system32\cbonm.exe"2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:2328 -
C:\Windows\SysWOW64\icacls.exeC:\Windows\system32\icacls.exe "c:\windows\system32\cbonm.exe" /grant Users:F2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:1632
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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\??\c:\windows\SysWOW64\cbonm.exeFilesize
44KB
MD50ed25ef75b69f6e095b59f64722c20f6
SHA1820231547d0897ad02feaf87a20db4410aefed6e
SHA256f4ebf8c81c15d2019536c5e5e0af3ea9b3b56816e249d62e91ef29bb06046e97
SHA512df6152bbd2af56b2b11e52a5363e75dd9fa6b17d49281bfd9ce6ef9c7b3566f3c6c27870bbe1c5725e56a6c0b7ac39335d355c94aa9dd1ed98247e05346c9256
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memory/1632-135-0x0000000000000000-mapping.dmp
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memory/2328-134-0x0000000000000000-mapping.dmp