Analysis
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max time kernel
149s -
max time network
143s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
18-01-2022 12:36
Behavioral task
behavioral1
Sample
cfe8c917030fa253716b7889e7cac0c783345db031750a44915cb7ca89dacb51.xlsm
Resource
win10-en-20211208
General
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Target
cfe8c917030fa253716b7889e7cac0c783345db031750a44915cb7ca89dacb51.xlsm
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Size
99KB
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MD5
1819364853772413de233c1c58cb4269
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SHA1
36d46dfca475aa08d9f792c327c34b5f4293f0ea
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SHA256
cfe8c917030fa253716b7889e7cac0c783345db031750a44915cb7ca89dacb51
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SHA512
b5df825772d12160bb356956561d84cbe49d56736a34fea97351d3068aadbdfb04fd81d5ff6f0df2cbabf2cac863a34c426a62bcac2e1de52c9b4a31d559c1dd
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 1968 3664 rundll32.exe EXCEL.EXE -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 41 2396 rundll32.exe 42 2396 rundll32.exe -
Downloads MZ/PE file
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Loads dropped DLL 2 IoCs
Processes:
rundll32.exerundll32.exepid process 1968 rundll32.exe 3896 rundll32.exe -
Drops file in System32 directory 1 IoCs
Processes:
rundll32.exedescription ioc process File opened for modification C:\Windows\SysWOW64\Vezqdmfcyuwxg\zyfptyjwng.myx 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 3664 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
rundll32.exepid process 2396 rundll32.exe 2396 rundll32.exe -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 3664 EXCEL.EXE 3664 EXCEL.EXE 3664 EXCEL.EXE 3664 EXCEL.EXE 3664 EXCEL.EXE 3664 EXCEL.EXE 3664 EXCEL.EXE 3664 EXCEL.EXE 3664 EXCEL.EXE 3664 EXCEL.EXE 3664 EXCEL.EXE 3664 EXCEL.EXE -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
EXCEL.EXErundll32.exerundll32.exerundll32.exedescription pid process target process PID 3664 wrote to memory of 1968 3664 EXCEL.EXE rundll32.exe PID 3664 wrote to memory of 1968 3664 EXCEL.EXE rundll32.exe PID 3664 wrote to memory of 1968 3664 EXCEL.EXE rundll32.exe PID 1968 wrote to memory of 3896 1968 rundll32.exe rundll32.exe PID 1968 wrote to memory of 3896 1968 rundll32.exe rundll32.exe PID 1968 wrote to memory of 3896 1968 rundll32.exe rundll32.exe PID 3896 wrote to memory of 2116 3896 rundll32.exe rundll32.exe PID 3896 wrote to memory of 2116 3896 rundll32.exe rundll32.exe PID 3896 wrote to memory of 2116 3896 rundll32.exe rundll32.exe PID 2116 wrote to memory of 2396 2116 rundll32.exe rundll32.exe PID 2116 wrote to memory of 2396 2116 rundll32.exe rundll32.exe PID 2116 wrote to memory of 2396 2116 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\cfe8c917030fa253716b7889e7cac0c783345db031750a44915cb7ca89dacb51.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\Vezqdmfcyuwxg\zyfptyjwng.myx",dNnVwOwEiLSmJu4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Vezqdmfcyuwxg\zyfptyjwng.myx",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/1968-280-0x0000000004E80000-0x0000000004EA8000-memory.dmpFilesize
160KB
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memory/2116-295-0x0000000002E50000-0x0000000002E78000-memory.dmpFilesize
160KB
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memory/2396-298-0x00000000025F0000-0x0000000002618000-memory.dmpFilesize
160KB
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memory/3664-121-0x00007FFE91410000-0x00007FFE91420000-memory.dmpFilesize
64KB
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memory/3664-129-0x00007FFE8D940000-0x00007FFE8D950000-memory.dmpFilesize
64KB
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memory/3664-128-0x00007FFE8D940000-0x00007FFE8D950000-memory.dmpFilesize
64KB
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memory/3664-115-0x00007FFE91410000-0x00007FFE91420000-memory.dmpFilesize
64KB
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memory/3664-118-0x00007FFE91410000-0x00007FFE91420000-memory.dmpFilesize
64KB
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memory/3664-117-0x00007FFE91410000-0x00007FFE91420000-memory.dmpFilesize
64KB
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memory/3664-116-0x00007FFE91410000-0x00007FFE91420000-memory.dmpFilesize
64KB
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memory/3896-284-0x0000000004520000-0x0000000004548000-memory.dmpFilesize
160KB
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memory/3896-287-0x0000000004A50000-0x0000000004A78000-memory.dmpFilesize
160KB
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memory/3896-289-0x0000000004B30000-0x0000000004B58000-memory.dmpFilesize
160KB
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memory/3896-291-0x0000000004CD0000-0x0000000004CF8000-memory.dmpFilesize
160KB
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memory/3896-293-0x0000000004D30000-0x0000000004D58000-memory.dmpFilesize
160KB
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memory/3896-296-0x0000000004EB0000-0x0000000004ED8000-memory.dmpFilesize
160KB