Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system -
submitted
25/03/2024, 15:47
Static task
static1
Behavioral task
behavioral1
Sample
de5f0b876145c3072389c0af52539a06.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
de5f0b876145c3072389c0af52539a06.exe
Resource
win10v2004-20240226-en
General
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Target
de5f0b876145c3072389c0af52539a06.exe
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Size
11.6MB
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MD5
de5f0b876145c3072389c0af52539a06
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SHA1
8fcb3d87bdb58c8f5eb5cd5d439fb08c88e19c23
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SHA256
fbc03327661ed973c859257eb8ad4941108669c968de30a2ef77af775fe0e960
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SHA512
858c78636b4c50791353b11df415e51bb8e3a2da4e2cda94ec2468a611db42ce30c3c3af3fa402825b2010eaad6f982088b293ddcc592726531933a4549092fc
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SSDEEP
49152:L88888888888888888888888888888888888888888888888888888888888888T:
Malware Config
Extracted
tofsee
defeatwax.ru
refabyd.info
Signatures
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\mfnklunj = "0" svchost.exe -
Creates new service(s) 1 TTPs
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 868 netsh.exe -
Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\mfnklunj\ImagePath = "C:\\Windows\\SysWOW64\\mfnklunj\\veuijxms.exe" svchost.exe -
Deletes itself 1 IoCs
pid Process 2464 svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2756 veuijxms.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2756 set thread context of 2464 2756 veuijxms.exe 41 -
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 2616 sc.exe 2716 sc.exe 2592 sc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2328 wrote to memory of 1712 2328 de5f0b876145c3072389c0af52539a06.exe 28 PID 2328 wrote to memory of 1712 2328 de5f0b876145c3072389c0af52539a06.exe 28 PID 2328 wrote to memory of 1712 2328 de5f0b876145c3072389c0af52539a06.exe 28 PID 2328 wrote to memory of 1712 2328 de5f0b876145c3072389c0af52539a06.exe 28 PID 2328 wrote to memory of 1964 2328 de5f0b876145c3072389c0af52539a06.exe 30 PID 2328 wrote to memory of 1964 2328 de5f0b876145c3072389c0af52539a06.exe 30 PID 2328 wrote to memory of 1964 2328 de5f0b876145c3072389c0af52539a06.exe 30 PID 2328 wrote to memory of 1964 2328 de5f0b876145c3072389c0af52539a06.exe 30 PID 2328 wrote to memory of 2616 2328 de5f0b876145c3072389c0af52539a06.exe 32 PID 2328 wrote to memory of 2616 2328 de5f0b876145c3072389c0af52539a06.exe 32 PID 2328 wrote to memory of 2616 2328 de5f0b876145c3072389c0af52539a06.exe 32 PID 2328 wrote to memory of 2616 2328 de5f0b876145c3072389c0af52539a06.exe 32 PID 2328 wrote to memory of 2716 2328 de5f0b876145c3072389c0af52539a06.exe 34 PID 2328 wrote to memory of 2716 2328 de5f0b876145c3072389c0af52539a06.exe 34 PID 2328 wrote to memory of 2716 2328 de5f0b876145c3072389c0af52539a06.exe 34 PID 2328 wrote to memory of 2716 2328 de5f0b876145c3072389c0af52539a06.exe 34 PID 2328 wrote to memory of 2592 2328 de5f0b876145c3072389c0af52539a06.exe 36 PID 2328 wrote to memory of 2592 2328 de5f0b876145c3072389c0af52539a06.exe 36 PID 2328 wrote to memory of 2592 2328 de5f0b876145c3072389c0af52539a06.exe 36 PID 2328 wrote to memory of 2592 2328 de5f0b876145c3072389c0af52539a06.exe 36 PID 2328 wrote to memory of 868 2328 de5f0b876145c3072389c0af52539a06.exe 39 PID 2328 wrote to memory of 868 2328 de5f0b876145c3072389c0af52539a06.exe 39 PID 2328 wrote to memory of 868 2328 de5f0b876145c3072389c0af52539a06.exe 39 PID 2328 wrote to memory of 868 2328 de5f0b876145c3072389c0af52539a06.exe 39 PID 2756 wrote to memory of 2464 2756 veuijxms.exe 41 PID 2756 wrote to memory of 2464 2756 veuijxms.exe 41 PID 2756 wrote to memory of 2464 2756 veuijxms.exe 41 PID 2756 wrote to memory of 2464 2756 veuijxms.exe 41 PID 2756 wrote to memory of 2464 2756 veuijxms.exe 41 PID 2756 wrote to memory of 2464 2756 veuijxms.exe 41
Processes
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C:\Users\Admin\AppData\Local\Temp\de5f0b876145c3072389c0af52539a06.exe"C:\Users\Admin\AppData\Local\Temp\de5f0b876145c3072389c0af52539a06.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2328 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mfnklunj\2⤵PID:1712
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\veuijxms.exe" C:\Windows\SysWOW64\mfnklunj\2⤵PID:1964
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create mfnklunj binPath= "C:\Windows\SysWOW64\mfnklunj\veuijxms.exe /d\"C:\Users\Admin\AppData\Local\Temp\de5f0b876145c3072389c0af52539a06.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
PID:2616
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description mfnklunj "wifi internet conection"2⤵
- Launches sc.exe
PID:2716
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start mfnklunj2⤵
- Launches sc.exe
PID:2592
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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
PID:868
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C:\Windows\SysWOW64\mfnklunj\veuijxms.exeC:\Windows\SysWOW64\mfnklunj\veuijxms.exe /d"C:\Users\Admin\AppData\Local\Temp\de5f0b876145c3072389c0af52539a06.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2756 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2464
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.3MB
MD59e47bbde4eb2bcd36749bd71b6cdb3fd
SHA149761226378ac20a28b6bc0db9677836226c2ea4
SHA256763f2ff2fc525efeaa5b12b3eb5d0ae50dcd3d040f59c8d0898b94cfb7bdad9f
SHA512ef0e1a4b817e1700f70997383176c22f43d8fe29f922e7b326a5ce6ff9e699099ee6ed19474b3557c8aec2b817a238e2147fb314937587bb9c14ad7b99263b55
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Filesize
2.6MB
MD5133f6ccff654ab3c26c8b1cc0d0d2fd8
SHA19b65290ae3f5447511c76fa413a0de7381ba3869
SHA25611c2e9126ff4d05d9adf6d3ba62fc71b07bf21a234e1f2abfa1529b85495e6fc
SHA51292fc259383d86a37a8c7100d06fd316ca6bacfdab2e3757a6bcb93047492b49c14adeae6ceacd85f5c1be088b057b4033910d20f4582a2e3e0ff32e6e439f262