Analysis
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max time kernel
129s -
max time network
10s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
16-06-2021 13:43
Static task
static1
Behavioral task
behavioral1
Sample
Jipos.dll
Resource
win7v20210410
General
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Target
Jipos.dll
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Size
893KB
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MD5
f2d9c653be1d8fe82ed9c1029c2a18e8
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SHA1
2a96a55156b761e5e29144789f1661a5f719b76f
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SHA256
a94291cc6f39425c30d1152a83ae122c0c8f10c8bf2f77c94542bbb30203aa94
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SHA512
84368bd91f8bb1e6f7a1dfcb63edf2a5fb564238c55d9013eba200b7332c39e4577c6d14f261d610d0a150ee47685680947f4f476477c999ee83dcbc83e8e440
Malware Config
Signatures
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Loads dropped DLL 1 IoCs
Processes:
regsvr32.exepid process 704 regsvr32.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
rundll32.exepid process 1336 rundll32.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
rundll32.exepid process 1336 rundll32.exe -
Suspicious use of WriteProcessMemory 29 IoCs
Processes:
rundll32.exerundll32.exeexplorer.exetaskeng.exeregsvr32.exedescription pid process target process PID 1084 wrote to memory of 1336 1084 rundll32.exe rundll32.exe PID 1084 wrote to memory of 1336 1084 rundll32.exe rundll32.exe PID 1084 wrote to memory of 1336 1084 rundll32.exe rundll32.exe PID 1084 wrote to memory of 1336 1084 rundll32.exe rundll32.exe PID 1084 wrote to memory of 1336 1084 rundll32.exe rundll32.exe PID 1084 wrote to memory of 1336 1084 rundll32.exe rundll32.exe PID 1084 wrote to memory of 1336 1084 rundll32.exe rundll32.exe PID 1336 wrote to memory of 1576 1336 rundll32.exe explorer.exe PID 1336 wrote to memory of 1576 1336 rundll32.exe explorer.exe PID 1336 wrote to memory of 1576 1336 rundll32.exe explorer.exe PID 1336 wrote to memory of 1576 1336 rundll32.exe explorer.exe PID 1336 wrote to memory of 1576 1336 rundll32.exe explorer.exe PID 1336 wrote to memory of 1576 1336 rundll32.exe explorer.exe PID 1576 wrote to memory of 1768 1576 explorer.exe schtasks.exe PID 1576 wrote to memory of 1768 1576 explorer.exe schtasks.exe PID 1576 wrote to memory of 1768 1576 explorer.exe schtasks.exe PID 1576 wrote to memory of 1768 1576 explorer.exe schtasks.exe PID 668 wrote to memory of 776 668 taskeng.exe regsvr32.exe PID 668 wrote to memory of 776 668 taskeng.exe regsvr32.exe PID 668 wrote to memory of 776 668 taskeng.exe regsvr32.exe PID 668 wrote to memory of 776 668 taskeng.exe regsvr32.exe PID 668 wrote to memory of 776 668 taskeng.exe regsvr32.exe PID 776 wrote to memory of 704 776 regsvr32.exe regsvr32.exe PID 776 wrote to memory of 704 776 regsvr32.exe regsvr32.exe PID 776 wrote to memory of 704 776 regsvr32.exe regsvr32.exe PID 776 wrote to memory of 704 776 regsvr32.exe regsvr32.exe PID 776 wrote to memory of 704 776 regsvr32.exe regsvr32.exe PID 776 wrote to memory of 704 776 regsvr32.exe regsvr32.exe PID 776 wrote to memory of 704 776 regsvr32.exe regsvr32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\Jipos.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\Jipos.dll,#12⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn ukecgdc /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\Jipos.dll\"" /SC ONCE /Z /ST 13:41 /ET 13:534⤵
- Creates scheduled task(s)
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C:\Windows\system32\taskeng.exetaskeng.exe {5E5D0481-4DD0-420E-B2A9-E5C2489D1284} S-1-5-18:NT AUTHORITY\System:Service:1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\regsvr32.exeregsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\Jipos.dll"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe-s "C:\Users\Admin\AppData\Local\Temp\Jipos.dll"3⤵
- Loads dropped DLL
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\Jipos.dllMD5
e0c6831796350512dcfacd9b2fb34fec
SHA110c024e439664ad989fcaa392bbf8a70ea5a318e
SHA256334bb514cc679cd5d751e0acb1efc9c3a152e4446397d521987eb368f65ab7c7
SHA512050d8a9ac5dbec27858f36ded18e82ece3fb2d44a21753f40d87f3028e9754bafa2e50c1f7028d06c2c54a963f0ed02b20f658787196af91b6ae3ec031714b7f
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\Users\Admin\AppData\Local\Temp\Jipos.dllMD5
e0c6831796350512dcfacd9b2fb34fec
SHA110c024e439664ad989fcaa392bbf8a70ea5a318e
SHA256334bb514cc679cd5d751e0acb1efc9c3a152e4446397d521987eb368f65ab7c7
SHA512050d8a9ac5dbec27858f36ded18e82ece3fb2d44a21753f40d87f3028e9754bafa2e50c1f7028d06c2c54a963f0ed02b20f658787196af91b6ae3ec031714b7f
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memory/704-72-0x0000000000000000-mapping.dmp
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memory/776-69-0x0000000000000000-mapping.dmp
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memory/776-70-0x000007FEFBD91000-0x000007FEFBD93000-memory.dmpFilesize
8KB
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memory/1336-62-0x00000000002C0000-0x00000000002F0000-memory.dmpFilesize
192KB
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memory/1336-63-0x00000000003C0000-0x00000000003EF000-memory.dmpFilesize
188KB
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memory/1336-59-0x0000000000000000-mapping.dmp
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memory/1336-61-0x00000000001D0000-0x00000000002B3000-memory.dmpFilesize
908KB
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memory/1336-60-0x00000000752F1000-0x00000000752F3000-memory.dmpFilesize
8KB
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memory/1576-66-0x0000000074B11000-0x0000000074B13000-memory.dmpFilesize
8KB
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memory/1576-67-0x00000000000C0000-0x00000000000EF000-memory.dmpFilesize
188KB
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memory/1576-64-0x0000000000000000-mapping.dmp
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memory/1768-68-0x0000000000000000-mapping.dmp