Analysis
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max time kernel
140s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
25/01/2024, 21:39
Behavioral task
behavioral1
Sample
7595586f8cd11da856b3b219b0c862e5.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
7595586f8cd11da856b3b219b0c862e5.exe
Resource
win10v2004-20231215-en
General
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Target
7595586f8cd11da856b3b219b0c862e5.exe
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Size
7KB
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MD5
7595586f8cd11da856b3b219b0c862e5
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SHA1
00a6c88d697c7b6b5143cc35cc4d49083d269dab
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SHA256
9441507305779e427a5a3e79377bab101de689e6aa16c1e6327bb3669d7e28c2
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SHA512
87ae16ffeb7c03b2b173ef507edd0f67742b7d2fa9173ec9cc6e802f9b53512f15ad41092ae2f10fec2fb7d1638b49e747017070b9762941dddcb2bbf4e575e1
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SSDEEP
192:Qr6T/2JcW1Jwoch1t2Bn6+0bIXL225Bll:I6rQV2mB0baL5Bll
Malware Config
Signatures
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Disables Task Manager via registry modification
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2044 netsh.exe -
resource yara_rule behavioral1/memory/2400-0-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2400-2-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2400-3-0x0000000000400000-0x000000000040B000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\System = "C:\\Windows\\system32\\kernels8.exe" 7595586f8cd11da856b3b219b0c862e5.exe -
Drops file in System32 directory 3 IoCs
description ioc Process File created C:\Windows\SysWOW64\kernels8.exe 7595586f8cd11da856b3b219b0c862e5.exe File opened for modification C:\Windows\SysWOW64\kernels8.exe 7595586f8cd11da856b3b219b0c862e5.exe File opened for modification C:\Windows\SysWOW64\dlh9jkdq8.exe 7595586f8cd11da856b3b219b0c862e5.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2400 wrote to memory of 2044 2400 7595586f8cd11da856b3b219b0c862e5.exe 28 PID 2400 wrote to memory of 2044 2400 7595586f8cd11da856b3b219b0c862e5.exe 28 PID 2400 wrote to memory of 2044 2400 7595586f8cd11da856b3b219b0c862e5.exe 28 PID 2400 wrote to memory of 2044 2400 7595586f8cd11da856b3b219b0c862e5.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\7595586f8cd11da856b3b219b0c862e5.exe"C:\Users\Admin\AppData\Local\Temp\7595586f8cd11da856b3b219b0c862e5.exe"1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2400 -
C:\Windows\SysWOW64\netsh.exenetsh firewall set allowedprogram 'C:\Users\Admin\AppData\Local\Temp\7595586f8cd11da856b3b219b0c862e5.exe' enable2⤵
- Modifies Windows Firewall
PID:2044
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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
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1