Analysis
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max time kernel
60s -
max time network
61s -
platform
windows10_x64 -
resource
win10-de-20211104 -
submitted
25-11-2021 16:28
Static task
static1
Behavioral task
behavioral1
Sample
a05a4c447a3dc734b88028e4554711685b8bd60526dc82a64aeba09ca6b9d0ba.dll
Resource
win10-de-20211104
General
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Target
a05a4c447a3dc734b88028e4554711685b8bd60526dc82a64aeba09ca6b9d0ba.dll
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Size
653KB
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MD5
c403c45169439d41086207e5965d7840
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SHA1
d4beb37fd654ae6f29a9a3941ee08a80cd65dc41
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SHA256
a05a4c447a3dc734b88028e4554711685b8bd60526dc82a64aeba09ca6b9d0ba
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SHA512
b92272764c1ccf90231e8a05a040bd404d98045d70fd5149f93b54f24672484337053ff4bd417783d370b477e22926ff8a745ecd92a7747a7f87d01d1762b648
Malware Config
Extracted
emotet
Epoch5
51.178.61.60:443
168.197.250.14:80
45.79.33.48:8080
196.44.98.190:8080
177.72.80.14:7080
51.210.242.234:8080
185.148.169.10:8080
142.4.219.173:8080
78.47.204.80:443
78.46.73.125:443
37.44.244.177:8080
37.59.209.141:8080
191.252.103.16:80
54.38.242.185:443
85.214.67.203:8080
54.37.228.122:443
207.148.81.119:8080
195.77.239.39:8080
66.42.57.149:443
195.154.146.35:443
Signatures
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Registers COM server for autorun 1 TTPs
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Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 21 1144 rundll32.exe 22 1144 rundll32.exe -
Modifies data under HKEY_USERS 21 IoCs
Processes:
OfficeC2RClient.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0 OfficeC2RClient.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\TrustCenter\Experimentation OfficeC2RClient.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officec2rclient.exe OfficeC2RClient.exe Key deleted \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officec2rclient.exe OfficeC2RClient.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages\en-US = "2" OfficeC2RClient.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages\en-US = "1" OfficeC2RClient.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officec2rclient.exe\ULSMonitor OfficeC2RClient.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata OfficeC2RClient.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ExperimentConfigs\Ecs OfficeC2RClient.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ExperimentEcs\all\Overrides OfficeC2RClient.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ExperimentConfigs\FirstSession\officeclicktorun OfficeC2RClient.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry OfficeC2RClient.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officec2rclient.exe\ULSMonitor\ULSTagIds0 = "5804129,17110992,7202269,17110988,7153487,39965824,17962391,17962392,3702920,3462423,3700754,3965062,4297094,7153421,18716193,7153435,7202265,20502174,6308191,18407617" OfficeC2RClient.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ExperimentEcs\Overrides OfficeC2RClient.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ExperimentConfigs\ExternalFeatureOverrides\officeclicktorun OfficeC2RClient.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ExperimentConfigs\Ecs\officeclicktorun\ConfigContextData OfficeC2RClient.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common OfficeC2RClient.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officec2rclient.exe\ULSMonitor\ULSCategoriesSeverities = "1329 10,1329 50,941 10,1329 15,941 15,941 6,1329 100,1329 6" OfficeC2RClient.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ExperimentConfigs\Ecs\officeclicktorun OfficeC2RClient.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ExperimentEcs\officeclicktorun\Overrides OfficeC2RClient.exe Key deleted \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officec2rclient.exe\ULSMonitor OfficeC2RClient.exe -
Modifies registry class 44 IoCs
Processes:
FileSyncConfig.exedescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\System.IsPinnedToNameSpaceTree = "1" FileSyncConfig.exe Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\InitPropertyBag FileSyncConfig.exe Set value (int) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\ShellFolder\FolderValueFlags = "40" FileSyncConfig.exe Key deleted \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_CLASSES\WOW6432NODE\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\INPROCSERVER32 FileSyncConfig.exe Key deleted \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_CLASSES\WOW6432NODE\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\SHELLFOLDER FileSyncConfig.exe Key deleted \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_CLASSES\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\DEFAULTICON FileSyncConfig.exe Key deleted \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_CLASSES\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\INSTANCE\INITPROPERTYBAG FileSyncConfig.exe Set value (str) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\InProcServer32\ = "%systemroot%\\SysWow64\\shell32.dll" FileSyncConfig.exe Set value (str) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Microsoft\\OneDrive\\OneDrive.exe,0" FileSyncConfig.exe Set value (int) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\InitPropertyBag\Attributes = "17" FileSyncConfig.exe Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance FileSyncConfig.exe Set value (str) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\CLSID = "{0E5AAE11-A475-4c5b-AB00-C66DE400274E}" FileSyncConfig.exe Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\ShellFolder FileSyncConfig.exe Key deleted \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_CLASSES\WOW6432NODE\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\DEFAULTICON FileSyncConfig.exe Key deleted \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_CLASSES\WOW6432NODE\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\INSTANCE\INITPROPERTYBAG FileSyncConfig.exe Key deleted \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance FileSyncConfig.exe Set value (str) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Microsoft\\OneDrive\\OneDrive.exe,0" FileSyncConfig.exe Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\InitPropertyBag FileSyncConfig.exe Key deleted \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_CLASSES\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\SHELLFOLDER FileSyncConfig.exe Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6} FileSyncConfig.exe Set value (str) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\ = "OneDrive" FileSyncConfig.exe Set value (str) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\InitPropertyBag\TargetKnownFolder = "{a52bba46-e9e1-435f-b3d9-28daa648c0f6}" FileSyncConfig.exe Set value (str) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\CLSID = "{0E5AAE11-A475-4c5b-AB00-C66DE400274E}" FileSyncConfig.exe Set value (int) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\System.IsPinnedToNameSpaceTree = "1" FileSyncConfig.exe Set value (int) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\SortOrderIndex = "66" FileSyncConfig.exe Set value (str) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\InitPropertyBag\TargetKnownFolder = "{a52bba46-e9e1-435f-b3d9-28daa648c0f6}" FileSyncConfig.exe Set value (int) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\ShellFolder\FolderValueFlags = "40" FileSyncConfig.exe Set value (int) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\ShellFolder\Attributes = "4034920525" FileSyncConfig.exe Key deleted \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_CLASSES\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\INPROCSERVER32 FileSyncConfig.exe Key deleted \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6} FileSyncConfig.exe Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance FileSyncConfig.exe Set value (int) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\ShellFolder\Attributes = "4034920525" FileSyncConfig.exe Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6} FileSyncConfig.exe Set value (int) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\InitPropertyBag\Attributes = "17" FileSyncConfig.exe Key deleted \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6} FileSyncConfig.exe Set value (int) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\SortOrderIndex = "66" FileSyncConfig.exe Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\InProcServer32 FileSyncConfig.exe Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\DefaultIcon FileSyncConfig.exe Set value (str) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\ = "OneDrive" FileSyncConfig.exe Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\InProcServer32 FileSyncConfig.exe Key deleted \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance FileSyncConfig.exe Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\ShellFolder FileSyncConfig.exe Set value (str) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\InProcServer32\ = "%systemroot%\\system32\\shell32.dll" FileSyncConfig.exe Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\DefaultIcon FileSyncConfig.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
rundll32.exepid process 1144 rundll32.exe 1144 rundll32.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
OfficeC2RClient.exepid process 2924 OfficeC2RClient.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 3704 wrote to memory of 1268 3704 rundll32.exe rundll32.exe PID 3704 wrote to memory of 1268 3704 rundll32.exe rundll32.exe PID 3704 wrote to memory of 1268 3704 rundll32.exe rundll32.exe PID 1268 wrote to memory of 1144 1268 rundll32.exe rundll32.exe PID 1268 wrote to memory of 1144 1268 rundll32.exe rundll32.exe PID 1268 wrote to memory of 1144 1268 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\a05a4c447a3dc734b88028e4554711685b8bd60526dc82a64aeba09ca6b9d0ba.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\a05a4c447a3dc734b88028e4554711685b8bd60526dc82a64aeba09ca6b9d0ba.dll,#12⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\a05a4c447a3dc734b88028e4554711685b8bd60526dc82a64aeba09ca6b9d0ba.dll",Control_RunDLL3⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
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C:\Users\Admin\AppData\Local\Microsoft\OneDrive\21.220.1024.0005\FileSyncConfig.exe"C:\Users\Admin\AppData\Local\Microsoft\OneDrive\21.220.1024.0005\FileSyncConfig.exe"1⤵
- Modifies registry class
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C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeC2RClient.exe"C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeC2RClient.exe" /frequentupdate SCHEDULEDTASK displaylevel=False1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1144-122-0x0000000000000000-mapping.dmp
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memory/1144-123-0x00000000002D0000-0x00000000002F8000-memory.dmpFilesize
160KB
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memory/1144-126-0x0000000000320000-0x0000000000348000-memory.dmpFilesize
160KB
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memory/1144-129-0x0000000000720000-0x0000000000748000-memory.dmpFilesize
160KB
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memory/1144-132-0x0000000000750000-0x0000000000778000-memory.dmpFilesize
160KB
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memory/1144-135-0x0000000000780000-0x00000000007A8000-memory.dmpFilesize
160KB
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memory/1144-138-0x0000000004A20000-0x0000000004A48000-memory.dmpFilesize
160KB
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memory/1144-141-0x0000000004B00000-0x0000000004B28000-memory.dmpFilesize
160KB
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memory/1268-118-0x0000000000000000-mapping.dmp
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memory/1268-119-0x0000000003070000-0x0000000003098000-memory.dmpFilesize
160KB