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Analysis
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max time kernel
144s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
01/09/2024, 13:42
Static task
static1
Behavioral task
behavioral1
Sample
4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe
Resource
win10v2004-20240802-en
General
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Target
4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe
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Size
12.5MB
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MD5
c4c9428ea6a30325f8ac6a3fecc199a1
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SHA1
e8c27d01e8e1b4f11f6183e8ba4b3065392349ce
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SHA256
4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1
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SHA512
b052061f5936ee2f30fc18e81daa9542451a1ad58235bd180e7d01fa49977813945492890a1a37a3cec59bb261a626cd175f12ac85bec9e000273159980e7a33
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SSDEEP
196608:TPRMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMP:T
Malware Config
Extracted
tofsee
defeatwax.ru
refabyd.info
Signatures
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Creates new service(s) 2 TTPs
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3648 netsh.exe -
Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\ectccbpx\ImagePath = "C:\\Windows\\SysWOW64\\ectccbpx\\eqxrwcpx.exe" svchost.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation 4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe -
Deletes itself 1 IoCs
pid Process 3168 svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2316 eqxrwcpx.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2316 set thread context of 3168 2316 eqxrwcpx.exe 107 -
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 5828 sc.exe 6056 sc.exe 5144 sc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe -
Program crash 2 IoCs
pid pid_target Process procid_target 1700 5176 WerFault.exe 85 5232 2316 WerFault.exe 99 -
System Location Discovery: System Language Discovery 1 TTPs 9 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 4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language eqxrwcpx.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 5176 wrote to memory of 3028 5176 4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe 87 PID 5176 wrote to memory of 3028 5176 4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe 87 PID 5176 wrote to memory of 3028 5176 4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe 87 PID 5176 wrote to memory of 5996 5176 4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe 89 PID 5176 wrote to memory of 5996 5176 4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe 89 PID 5176 wrote to memory of 5996 5176 4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe 89 PID 5176 wrote to memory of 6056 5176 4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe 91 PID 5176 wrote to memory of 6056 5176 4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe 91 PID 5176 wrote to memory of 6056 5176 4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe 91 PID 5176 wrote to memory of 5144 5176 4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe 95 PID 5176 wrote to memory of 5144 5176 4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe 95 PID 5176 wrote to memory of 5144 5176 4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe 95 PID 5176 wrote to memory of 5828 5176 4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe 97 PID 5176 wrote to memory of 5828 5176 4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe 97 PID 5176 wrote to memory of 5828 5176 4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe 97 PID 5176 wrote to memory of 3648 5176 4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe 102 PID 5176 wrote to memory of 3648 5176 4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe 102 PID 5176 wrote to memory of 3648 5176 4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe 102 PID 2316 wrote to memory of 3168 2316 eqxrwcpx.exe 107 PID 2316 wrote to memory of 3168 2316 eqxrwcpx.exe 107 PID 2316 wrote to memory of 3168 2316 eqxrwcpx.exe 107 PID 2316 wrote to memory of 3168 2316 eqxrwcpx.exe 107 PID 2316 wrote to memory of 3168 2316 eqxrwcpx.exe 107
Processes
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C:\Users\Admin\AppData\Local\Temp\4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe"C:\Users\Admin\AppData\Local\Temp\4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5176 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ectccbpx\2⤵
- System Location Discovery: System Language Discovery
PID:3028
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\eqxrwcpx.exe" C:\Windows\SysWOW64\ectccbpx\2⤵
- System Location Discovery: System Language Discovery
PID:5996
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create ectccbpx binPath= "C:\Windows\SysWOW64\ectccbpx\eqxrwcpx.exe /d\"C:\Users\Admin\AppData\Local\Temp\4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:6056
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description ectccbpx "wifi internet conection"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:5144
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start ectccbpx2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:5828
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C:\Windows\SysWOW64\netsh.exe"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul2⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:3648
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5176 -s 5922⤵
- Program crash
PID:1700
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C:\Windows\SysWOW64\ectccbpx\eqxrwcpx.exeC:\Windows\SysWOW64\ectccbpx\eqxrwcpx.exe /d"C:\Users\Admin\AppData\Local\Temp\4fb9ec0883d7b509a16d73e2181f5236d13042706cb8bbe82091f8a9db4575d1.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2316 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:3168
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2316 -s 5202⤵
- Program crash
PID:5232
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 5176 -ip 51761⤵PID:4556
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2316 -ip 23161⤵PID:4956
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
1Replay Monitor
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Downloads
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Filesize
11.1MB
MD51906894822a56674add4f746e5d1b137
SHA17f0037e9e27d00706fa3329bd973eea5259ac745
SHA2565b7a38d91298826357ed0c2860c95238d05688e957f2728fc35bd145afd7d774
SHA512c74dec7fcfaba030bca9fc4e14623078ef85bfe98a20ffd74282c3a9bb7b8cfcfb09725cd1d7cc99bf55f60bc6120ecfb143ed4a487d6aec5bf5052a89620850