Analysis
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max time kernel
142s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
02-05-2024 02:05
Behavioral task
behavioral1
Sample
b3f11a399dfa61522c1a34722779316eae8c21afcc120a01c820f4f198a5ce6c.exe
Resource
win7-20240221-en
General
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Target
b3f11a399dfa61522c1a34722779316eae8c21afcc120a01c820f4f198a5ce6c.exe
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Size
1.1MB
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MD5
5c4906004e74ec9700226dd3ec8fab6d
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SHA1
4a6f23f7f2b71f48a2a8ff357005b4030003c3f9
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SHA256
b3f11a399dfa61522c1a34722779316eae8c21afcc120a01c820f4f198a5ce6c
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SHA512
2bf8d979fd75ff12518206a3e988ba926be3a8a17e797ea9972633c1685303f62de65db950e3dd9abd1d492b50749890899066f2d0a16613d747ab2b9eaa233e
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SSDEEP
24576:zQ5aILMCfmAUjzX6xQGCZLFdGm1StE10/ZcnDPMD3:E5aIwC+Agr6S/FFC+Lc
Malware Config
Signatures
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KPOT Core Executable 1 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Roaming\WinSocket\b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe family_kpot -
Trickbot x86 loader 1 IoCs
Detected Trickbot's x86 loader that unpacks the x86 payload.
Processes:
resource yara_rule behavioral2/memory/4980-15-0x0000000002380000-0x00000000023A9000-memory.dmp trickbot_loader32 -
Executes dropped EXE 3 IoCs
Processes:
b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exeb3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exeb3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exepid process 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe 4332 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exeb3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exedescription pid process Token: SeTcbPrivilege 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe Token: SeTcbPrivilege 4332 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
Processes:
b3f11a399dfa61522c1a34722779316eae8c21afcc120a01c820f4f198a5ce6c.exeb3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exeb3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exeb3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exepid process 4980 b3f11a399dfa61522c1a34722779316eae8c21afcc120a01c820f4f198a5ce6c.exe 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe 4332 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
b3f11a399dfa61522c1a34722779316eae8c21afcc120a01c820f4f198a5ce6c.exeb3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exeb3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exeb3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exedescription pid process target process PID 4980 wrote to memory of 1932 4980 b3f11a399dfa61522c1a34722779316eae8c21afcc120a01c820f4f198a5ce6c.exe b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe PID 4980 wrote to memory of 1932 4980 b3f11a399dfa61522c1a34722779316eae8c21afcc120a01c820f4f198a5ce6c.exe b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe PID 4980 wrote to memory of 1932 4980 b3f11a399dfa61522c1a34722779316eae8c21afcc120a01c820f4f198a5ce6c.exe b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 1932 wrote to memory of 1368 1932 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 5072 wrote to memory of 3592 5072 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 4332 wrote to memory of 4076 4332 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 4332 wrote to memory of 4076 4332 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 4332 wrote to memory of 4076 4332 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 4332 wrote to memory of 4076 4332 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 4332 wrote to memory of 4076 4332 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 4332 wrote to memory of 4076 4332 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 4332 wrote to memory of 4076 4332 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 4332 wrote to memory of 4076 4332 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe PID 4332 wrote to memory of 4076 4332 b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe svchost.exe -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\b3f11a399dfa61522c1a34722779316eae8c21afcc120a01c820f4f198a5ce6c.exe"C:\Users\Admin\AppData\Local\Temp\b3f11a399dfa61522c1a34722779316eae8c21afcc120a01c820f4f198a5ce6c.exe"1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4980 -
C:\Users\Admin\AppData\Roaming\WinSocket\b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exeC:\Users\Admin\AppData\Roaming\WinSocket\b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1932 -
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe3⤵PID:1368
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C:\Users\Admin\AppData\Roaming\WinSocket\b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exeC:\Users\Admin\AppData\Roaming\WinSocket\b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5072 -
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe2⤵PID:3592
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C:\Users\Admin\AppData\Roaming\WinSocket\b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exeC:\Users\Admin\AppData\Roaming\WinSocket\b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4332 -
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe2⤵PID:4076
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\WinSocket\b3f11a399dfa71622c1a34822889317eae9c21afcc120a01c920f4f199a6ce7c.exe
Filesize1.1MB
MD55c4906004e74ec9700226dd3ec8fab6d
SHA14a6f23f7f2b71f48a2a8ff357005b4030003c3f9
SHA256b3f11a399dfa61522c1a34722779316eae8c21afcc120a01c820f4f198a5ce6c
SHA5122bf8d979fd75ff12518206a3e988ba926be3a8a17e797ea9972633c1685303f62de65db950e3dd9abd1d492b50749890899066f2d0a16613d747ab2b9eaa233e
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Filesize
45KB
MD545d9ac54157bbb4903346e8dcf82f886
SHA129a65225f2531192b23221dff586d197d4599070
SHA256a7f19ee9e6002b03e402cc42f780468050bc1715d63431e49436ee70a8d153d3
SHA512b65b46e4cc9bb2818889472dd6106e244d67b0095551d3335e5fffb9ff1fce343a922ca22254508e285ee3612cbbbe929cb92e8ae7452c8904a6cd456529286d