Analysis
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max time kernel
150s -
max time network
137s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
18-01-2022 17:09
Behavioral task
behavioral1
Sample
84bad34c5bdcb90470bfd094dd7544663f454f3adc3d7ab0466ce45a66785a4b.xlsm
Resource
win10-en-20211208
General
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Target
84bad34c5bdcb90470bfd094dd7544663f454f3adc3d7ab0466ce45a66785a4b.xlsm
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Size
99KB
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MD5
96cd295393a89366ed9cb8ed483db069
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SHA1
08215bf69bb4b7bffa6a74b12d5df0e1ee22251f
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SHA256
84bad34c5bdcb90470bfd094dd7544663f454f3adc3d7ab0466ce45a66785a4b
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SHA512
57dc0347d997997066b6ed04943863210654cd05720cf45540e512c0c3e6a0559f04b2fb875f5766638001df4e24bde82f45342dc64a8cd949aa0be8189e52aa
Malware Config
Extracted
http://avionxpress.com/lp/T9b1Bga4FdDfP5HI/
Extracted
emotet
Epoch5
45.138.98.34:80
69.16.218.101:8080
51.210.242.234:8080
185.148.168.220:8080
142.4.219.173:8080
54.38.242.185:443
191.252.103.16:80
104.131.62.48:8080
62.171.178.147:8080
217.182.143.207:443
168.197.250.14:80
37.44.244.177:8080
66.42.57.149:443
210.57.209.142:8080
159.69.237.188:443
116.124.128.206:8080
128.199.192.135:8080
195.154.146.35:443
185.148.168.15:8080
195.77.239.39:8080
207.148.81.119:8080
85.214.67.203:8080
190.90.233.66:443
78.46.73.125:443
78.47.204.80:443
37.59.209.141:8080
54.37.228.122:443
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:
rundll32.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3824 2440 rundll32.exe EXCEL.EXE -
Blocklisted process makes network request 3 IoCs
Processes:
rundll32.exeflow pid process 38 2648 rundll32.exe 39 2648 rundll32.exe 40 2648 rundll32.exe -
Downloads MZ/PE file
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Loads dropped DLL 2 IoCs
Processes:
rundll32.exerundll32.exepid process 3824 rundll32.exe 1084 rundll32.exe -
Drops file in System32 directory 1 IoCs
Processes:
rundll32.exedescription ioc process File opened for modification C:\Windows\SysWOW64\Miwjsfa\wtyc.jtu rundll32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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 2440 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
rundll32.exepid process 2648 rundll32.exe 2648 rundll32.exe -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 2440 EXCEL.EXE 2440 EXCEL.EXE 2440 EXCEL.EXE 2440 EXCEL.EXE 2440 EXCEL.EXE 2440 EXCEL.EXE 2440 EXCEL.EXE 2440 EXCEL.EXE 2440 EXCEL.EXE 2440 EXCEL.EXE 2440 EXCEL.EXE 2440 EXCEL.EXE -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
EXCEL.EXErundll32.exerundll32.exerundll32.exedescription pid process target process PID 2440 wrote to memory of 3824 2440 EXCEL.EXE rundll32.exe PID 2440 wrote to memory of 3824 2440 EXCEL.EXE rundll32.exe PID 2440 wrote to memory of 3824 2440 EXCEL.EXE rundll32.exe PID 3824 wrote to memory of 1084 3824 rundll32.exe rundll32.exe PID 3824 wrote to memory of 1084 3824 rundll32.exe rundll32.exe PID 3824 wrote to memory of 1084 3824 rundll32.exe rundll32.exe PID 1084 wrote to memory of 4028 1084 rundll32.exe rundll32.exe PID 1084 wrote to memory of 4028 1084 rundll32.exe rundll32.exe PID 1084 wrote to memory of 4028 1084 rundll32.exe rundll32.exe PID 4028 wrote to memory of 2648 4028 rundll32.exe rundll32.exe PID 4028 wrote to memory of 2648 4028 rundll32.exe rundll32.exe PID 4028 wrote to memory of 2648 4028 rundll32.exe rundll32.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\84bad34c5bdcb90470bfd094dd7544663f454f3adc3d7ab0466ce45a66785a4b.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\SysWow64\rundll32.exeC:\Windows\SysWow64\rundll32.exe ..\ourl.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\ourl.ocx",DllRegisterServer3⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Miwjsfa\wtyc.jtu",WBabiLl4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Miwjsfa\wtyc.jtu",DllRegisterServer5⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\ourl.ocxMD5
562dab32542a479f5047898e2db9dfa4
SHA13123cba17796285c7176e333d6c46eedb74c5f7d
SHA2567b996a7128a06f089f0b4a46465ef2027383b348f8577d25e77a12f65877dec5
SHA51216898a79955cec1723c8f731df380c603f80ae44d96f3a40206d926af31c52633c5f27ded975d89afec849403ae83bcc8543882c74cdc83f920c1c16084c9994
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\Users\Admin\ourl.ocxMD5
562dab32542a479f5047898e2db9dfa4
SHA13123cba17796285c7176e333d6c46eedb74c5f7d
SHA2567b996a7128a06f089f0b4a46465ef2027383b348f8577d25e77a12f65877dec5
SHA51216898a79955cec1723c8f731df380c603f80ae44d96f3a40206d926af31c52633c5f27ded975d89afec849403ae83bcc8543882c74cdc83f920c1c16084c9994
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\Users\Admin\ourl.ocxMD5
562dab32542a479f5047898e2db9dfa4
SHA13123cba17796285c7176e333d6c46eedb74c5f7d
SHA2567b996a7128a06f089f0b4a46465ef2027383b348f8577d25e77a12f65877dec5
SHA51216898a79955cec1723c8f731df380c603f80ae44d96f3a40206d926af31c52633c5f27ded975d89afec849403ae83bcc8543882c74cdc83f920c1c16084c9994
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memory/1084-271-0x0000000004B30000-0x0000000004B58000-memory.dmpFilesize
160KB
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memory/1084-275-0x0000000004CD0000-0x0000000004CF8000-memory.dmpFilesize
160KB
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memory/1084-279-0x0000000004EA0000-0x0000000004EC8000-memory.dmpFilesize
160KB
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memory/1084-277-0x0000000004D30000-0x0000000004D58000-memory.dmpFilesize
160KB
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memory/1084-268-0x0000000004700000-0x0000000004728000-memory.dmpFilesize
160KB
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memory/1084-266-0x0000000002C80000-0x0000000002CA8000-memory.dmpFilesize
160KB
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memory/2440-116-0x00007FF879910000-0x00007FF879920000-memory.dmpFilesize
64KB
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memory/2440-117-0x00007FF879910000-0x00007FF879920000-memory.dmpFilesize
64KB
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memory/2440-118-0x00007FF879910000-0x00007FF879920000-memory.dmpFilesize
64KB
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memory/2440-115-0x00007FF879910000-0x00007FF879920000-memory.dmpFilesize
64KB
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memory/2440-127-0x00007FF8760E0000-0x00007FF8760F0000-memory.dmpFilesize
64KB
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memory/2440-129-0x00007FF879910000-0x00007FF879920000-memory.dmpFilesize
64KB
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memory/2440-128-0x00007FF8760E0000-0x00007FF8760F0000-memory.dmpFilesize
64KB
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memory/2648-282-0x0000000003130000-0x0000000003158000-memory.dmpFilesize
160KB
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memory/2648-284-0x0000000004A70000-0x0000000004A98000-memory.dmpFilesize
160KB
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memory/4028-280-0x00000000046D0000-0x00000000046F8000-memory.dmpFilesize
160KB