Analysis
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max time kernel
149s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
07-03-2024 16:43
Static task
static1
Behavioral task
behavioral1
Sample
b92c9498b59f8994b9800b0fbc1b9403.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
b92c9498b59f8994b9800b0fbc1b9403.exe
Resource
win10v2004-20240226-en
General
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Target
b92c9498b59f8994b9800b0fbc1b9403.exe
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Size
421KB
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MD5
b92c9498b59f8994b9800b0fbc1b9403
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SHA1
d66dec12f044a7ddeb3c9510ab97344c6a202d7c
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SHA256
97373b0ef60cf125cf1d29e3a75e41923d79e587f4ffffe4db808e68fcfe6d65
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SHA512
cc4ba50b11aa451092f0f8ad1d3410189ccc0440bbec2c6a398084fc8ec1543437cc99f06c235ccf5a3ffb2f284daa10215e8c536d8af15567e15d604d977c7e
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SSDEEP
12288:YWrUsI/uUIPO5haJnCiEIjxB+KZLfAfTTGPawa/:YyymUImXvYUK1fTC
Malware Config
Signatures
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Deletes itself 1 IoCs
Processes:
cmd.exepid process 2004 cmd.exe -
Executes dropped EXE 1 IoCs
Processes:
whpjnfz.exepid process 2720 whpjnfz.exe -
Loads dropped DLL 3 IoCs
Processes:
cmd.exewhpjnfz.exepid process 2004 cmd.exe 2004 cmd.exe 2720 whpjnfz.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid process 2636 taskkill.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
whpjnfz.exepid process 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 2636 taskkill.exe -
Suspicious use of FindShellTrayWindow 4 IoCs
Processes:
whpjnfz.exepid process 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe -
Suspicious use of SendNotifyMessage 4 IoCs
Processes:
whpjnfz.exepid process 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe 2720 whpjnfz.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
b92c9498b59f8994b9800b0fbc1b9403.execmd.exedescription pid process target process PID 856 wrote to memory of 2004 856 b92c9498b59f8994b9800b0fbc1b9403.exe cmd.exe PID 856 wrote to memory of 2004 856 b92c9498b59f8994b9800b0fbc1b9403.exe cmd.exe PID 856 wrote to memory of 2004 856 b92c9498b59f8994b9800b0fbc1b9403.exe cmd.exe PID 856 wrote to memory of 2004 856 b92c9498b59f8994b9800b0fbc1b9403.exe cmd.exe PID 2004 wrote to memory of 2636 2004 cmd.exe taskkill.exe PID 2004 wrote to memory of 2636 2004 cmd.exe taskkill.exe PID 2004 wrote to memory of 2636 2004 cmd.exe taskkill.exe PID 2004 wrote to memory of 2636 2004 cmd.exe taskkill.exe PID 2004 wrote to memory of 2660 2004 cmd.exe PING.EXE PID 2004 wrote to memory of 2660 2004 cmd.exe PING.EXE PID 2004 wrote to memory of 2660 2004 cmd.exe PING.EXE PID 2004 wrote to memory of 2660 2004 cmd.exe PING.EXE PID 2004 wrote to memory of 2720 2004 cmd.exe whpjnfz.exe PID 2004 wrote to memory of 2720 2004 cmd.exe whpjnfz.exe PID 2004 wrote to memory of 2720 2004 cmd.exe whpjnfz.exe PID 2004 wrote to memory of 2720 2004 cmd.exe whpjnfz.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b92c9498b59f8994b9800b0fbc1b9403.exe"C:\Users\Admin\AppData\Local\Temp\b92c9498b59f8994b9800b0fbc1b9403.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:856 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /f /pid 856 & ping -n 3 127.1 & del /f /q "C:\Users\Admin\AppData\Local\Temp\b92c9498b59f8994b9800b0fbc1b9403.exe" & start C:\Users\Admin\AppData\Local\whpjnfz.exe -f2⤵
- Deletes itself
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2004 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /pid 8563⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2636 -
C:\Windows\SysWOW64\PING.EXEping -n 3 127.13⤵
- Runs ping.exe
PID:2660 -
C:\Users\Admin\AppData\Local\whpjnfz.exeC:\Users\Admin\AppData\Local\whpjnfz.exe -f3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2720
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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\Users\Admin\AppData\Local\whpjnfz.exeFilesize
421KB
MD5b92c9498b59f8994b9800b0fbc1b9403
SHA1d66dec12f044a7ddeb3c9510ab97344c6a202d7c
SHA25697373b0ef60cf125cf1d29e3a75e41923d79e587f4ffffe4db808e68fcfe6d65
SHA512cc4ba50b11aa451092f0f8ad1d3410189ccc0440bbec2c6a398084fc8ec1543437cc99f06c235ccf5a3ffb2f284daa10215e8c536d8af15567e15d604d977c7e
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memory/856-0-0x0000000000260000-0x0000000000261000-memory.dmpFilesize
4KB
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memory/856-1-0x0000000001000000-0x00000000010CF000-memory.dmpFilesize
828KB
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memory/856-2-0x0000000000270000-0x0000000000272000-memory.dmpFilesize
8KB
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memory/856-4-0x0000000001000000-0x00000000010CF000-memory.dmpFilesize
828KB
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memory/2720-10-0x00000000002E0000-0x00000000002E2000-memory.dmpFilesize
8KB
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memory/2720-9-0x0000000001000000-0x00000000010CF000-memory.dmpFilesize
828KB
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memory/2720-12-0x0000000001000000-0x00000000010CF000-memory.dmpFilesize
828KB
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memory/2720-13-0x0000000001000000-0x00000000010CF000-memory.dmpFilesize
828KB
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memory/2720-14-0x0000000001000000-0x00000000010CF000-memory.dmpFilesize
828KB
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memory/2720-15-0x0000000001000000-0x00000000010CF000-memory.dmpFilesize
828KB
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memory/2720-16-0x0000000001000000-0x00000000010CF000-memory.dmpFilesize
828KB
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memory/2720-17-0x0000000001000000-0x00000000010CF000-memory.dmpFilesize
828KB
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memory/2720-18-0x0000000001000000-0x00000000010CF000-memory.dmpFilesize
828KB
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memory/2720-19-0x0000000001000000-0x00000000010CF000-memory.dmpFilesize
828KB