cc0e99acb1d5181d9b56eb4f50570ace512e6c76fa8f95dc2e3f6fcdcd22c600

General
Target

cc0e99acb1d5181d9b56eb4f50570ace512e6c76fa8f95dc2e3f6fcdcd22c600.dll

Filesize

653KB

Completed

25-11-2021 16:42

Score
10/10
MD5

e4d82fa6e7d7ccdd414ee09fd7fc9f8d

SHA1

198050a59f47efab0189b1b3d847b44cd9118463

SHA256

cc0e99acb1d5181d9b56eb4f50570ace512e6c76fa8f95dc2e3f6fcdcd22c600

Malware Config

Extracted

Family emotet
Botnet Epoch5
C2

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

eck1.plain
ecs1.plain
Signatures 8

Filter: none

Persistence
  • Emotet

    Description

    Emotet is a trojan that is primarily spread through spam emails.

  • Registers COM server for autorun

    TTPs

    Registry Run Keys / Startup Folder
  • Blocklisted process makes network request
    rundll32.exe

    Reported IOCs

    flowpidprocess
    17348rundll32.exe
    18348rundll32.exe
  • Modifies data under HKEY_USERS
    OfficeC2RClient.exe

    Reported IOCs

    descriptioniocprocess
    Key created\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ExperimentConfigs\EcsOfficeC2RClient.exe
    Key created\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ExperimentConfigs\Ecs\officeclicktorun\ConfigContextDataOfficeC2RClient.exe
    Key created\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetryOfficeC2RClient.exe
    Key created\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ExperimentConfigs\Ecs\officeclicktorunOfficeC2RClient.exe
    Key created\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ExperimentEcs\OverridesOfficeC2RClient.exe
    Key created\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ExperimentEcs\officeclicktorun\OverridesOfficeC2RClient.exe
    Set value (int)\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages\en-US = "1"OfficeC2RClient.exe
    Key deleted\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officec2rclient.exe\ULSMonitorOfficeC2RClient.exe
    Key created\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0OfficeC2RClient.exe
    Key created\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\CommonOfficeC2RClient.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\all\OverridesOfficeC2RClient.exe
    Set value (int)\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages\en-US = "2"OfficeC2RClient.exe
    Key created\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\TrustCenter\ExperimentationOfficeC2RClient.exe
    Key deleted\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officec2rclient.exeOfficeC2RClient.exe
    Key created\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officec2rclient.exe\ULSMonitorOfficeC2RClient.exe
    Key created\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadataOfficeC2RClient.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\ExternalFeatureOverrides\officeclicktorunOfficeC2RClient.exe
    Key created\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ExperimentConfigs\FirstSession\officeclicktorunOfficeC2RClient.exe
    Key created\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officec2rclient.exeOfficeC2RClient.exe
  • Modifies registry class
    FileSyncConfig.exe

    Reported IOCs

    descriptioniocprocess
    Key deleted\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\InstanceFileSyncConfig.exe
    Key deleted\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_CLASSES\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\SHELLFOLDERFileSyncConfig.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}\Instance\InitPropertyBag\TargetKnownFolder = "{a52bba46-e9e1-435f-b3d9-28daa648c0f6}"FileSyncConfig.exe
    Key created\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\ShellFolderFileSyncConfig.exe
    Key created\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\InstanceFileSyncConfig.exe
    Key created\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\ShellFolderFileSyncConfig.exe
    Key deleted\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\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\InitPropertyBagFileSyncConfig.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}\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
    Key created\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\InstanceFileSyncConfig.exe
    Key deleted\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_CLASSES\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\DEFAULTICONFileSyncConfig.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}\DefaultIconFileSyncConfig.exe
    Key deleted\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_CLASSES\WOW6432NODE\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\INPROCSERVER32FileSyncConfig.exe
    Key deleted\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\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}\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}\InProcServer32FileSyncConfig.exe
    Key deleted\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_CLASSES\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\INSTANCE\INITPROPERTYBAGFileSyncConfig.exe
    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}\InProcServer32FileSyncConfig.exe
    Key created\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\DefaultIconFileSyncConfig.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
    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
    Key created\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\InitPropertyBagFileSyncConfig.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 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}\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Microsoft\\OneDrive\\OneDrive.exe,0"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
    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
    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\WOW6432NODE\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\DEFAULTICONFileSyncConfig.exe
    Key deleted\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_CLASSES\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\INPROCSERVER32FileSyncConfig.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
    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
    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}\InstanceFileSyncConfig.exe
    Key deleted\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_CLASSES\WOW6432NODE\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\SHELLFOLDERFileSyncConfig.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\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Microsoft\\OneDrive\\OneDrive.exe,0"FileSyncConfig.exe
    Key deleted\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_CLASSES\WOW6432NODE\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\INSTANCE\INITPROPERTYBAGFileSyncConfig.exe
  • Suspicious behavior: EnumeratesProcesses
    rundll32.exe

    Reported IOCs

    pidprocess
    348rundll32.exe
    348rundll32.exe
  • Suspicious use of SetWindowsHookEx
    OfficeC2RClient.exe

    Reported IOCs

    pidprocess
    2540OfficeC2RClient.exe
  • Suspicious use of WriteProcessMemory
    rundll32.exerundll32.exe

    Reported IOCs

    descriptionpidprocesstarget process
    PID 2568 wrote to memory of 12562568rundll32.exerundll32.exe
    PID 2568 wrote to memory of 12562568rundll32.exerundll32.exe
    PID 2568 wrote to memory of 12562568rundll32.exerundll32.exe
    PID 1256 wrote to memory of 3481256rundll32.exerundll32.exe
    PID 1256 wrote to memory of 3481256rundll32.exerundll32.exe
    PID 1256 wrote to memory of 3481256rundll32.exerundll32.exe
Processes 5
  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\cc0e99acb1d5181d9b56eb4f50570ace512e6c76fa8f95dc2e3f6fcdcd22c600.dll,#1
    Suspicious use of WriteProcessMemory
    PID:2568
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\cc0e99acb1d5181d9b56eb4f50570ace512e6c76fa8f95dc2e3f6fcdcd22c600.dll,#1
      Suspicious use of WriteProcessMemory
      PID:1256
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\cc0e99acb1d5181d9b56eb4f50570ace512e6c76fa8f95dc2e3f6fcdcd22c600.dll",Control_RunDLL
        Blocklisted process makes network request
        Suspicious behavior: EnumeratesProcesses
        PID:348
  • 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"
    Modifies registry class
    PID:2080
  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeC2RClient.exe
    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeC2RClient.exe" /frequentupdate SCHEDULEDTASK displaylevel=False
    Modifies data under HKEY_USERS
    Suspicious use of SetWindowsHookEx
    PID:2540
Network
MITRE ATT&CK Matrix
Collection
    Command and Control
      Credential Access
        Defense Evasion
          Discovery
            Execution
              Exfiltration
                Impact
                  Initial Access
                    Lateral Movement
                      Privilege Escalation
                        Replay Monitor
                        00:00 00:00
                        Downloads
                        • memory/348-132-0x0000000004EB0000-0x0000000004ED8000-memory.dmp

                        • memory/348-135-0x0000000004F90000-0x0000000004FB8000-memory.dmp

                        • memory/348-122-0x0000000000000000-mapping.dmp

                        • memory/348-123-0x0000000002CD0000-0x0000000002CF8000-memory.dmp

                        • memory/348-126-0x0000000004BF0000-0x0000000004C18000-memory.dmp

                        • memory/348-129-0x0000000004DD0000-0x0000000004DF8000-memory.dmp

                        • memory/348-138-0x0000000005070000-0x0000000005098000-memory.dmp

                        • memory/1256-118-0x0000000000000000-mapping.dmp

                        • memory/1256-119-0x0000000003110000-0x0000000003138000-memory.dmp