Analysis
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max time kernel
37s -
max time network
61s -
platform
windows10_x64 -
resource
win10-de-20211104 -
submitted
25-11-2021 17:02
Static task
static1
Behavioral task
behavioral1
Sample
291f9d73bedec448403e2ae853fc365ebd0bbf13e63e5fc9474c3c1af784df2b.dll
Resource
win10-de-20211104
General
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Target
291f9d73bedec448403e2ae853fc365ebd0bbf13e63e5fc9474c3c1af784df2b.dll
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Size
653KB
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MD5
cb741911edf0ae7af611e53ad2b8c4ea
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SHA1
8b8bc1b4253a734d93416e1871d46bfdd3faf3f9
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SHA256
291f9d73bedec448403e2ae853fc365ebd0bbf13e63e5fc9474c3c1af784df2b
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SHA512
e595e8117aea503079ab53b70d93024ba392e966adbf25b59e67670bd9c6908f7185ce0585194a4676716e3d0c7eec9e58318d3d4f5c03fc5b01d602935855ce
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 1 IoCs
Processes:
rundll32.exeflow pid process 26 3288 rundll32.exe -
Drops file in System32 directory 1 IoCs
Processes:
rundll32.exedescription ioc process File opened for modification C:\Windows\SysWOW64\Gbuasgz\puebdyoaqo.uva rundll32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 44 IoCs
Processes:
FileSyncConfig.exedescription ioc process 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}\ShellFolder 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 Key deleted \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6} 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} 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\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}\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}\DEFAULTICON 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}\Instance 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 Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\DefaultIcon 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}\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}\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 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\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}\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 deleted \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_CLASSES\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\INPROCSERVER32 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 (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}\InProcServer32 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 Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\InitPropertyBag 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 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}\Instance 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 (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 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}\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 Key created \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\WOW6432NODE\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\INPROCSERVER32 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 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}\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}\ShellFolder\Attributes = "4034920525" FileSyncConfig.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
rundll32.exepid process 3288 rundll32.exe 3288 rundll32.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
rundll32.exepid process 4576 rundll32.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
rundll32.exerundll32.exerundll32.exerundll32.exedescription pid process target process PID 4468 wrote to memory of 4540 4468 rundll32.exe rundll32.exe PID 4468 wrote to memory of 4540 4468 rundll32.exe rundll32.exe PID 4468 wrote to memory of 4540 4468 rundll32.exe rundll32.exe PID 4540 wrote to memory of 4576 4540 rundll32.exe rundll32.exe PID 4540 wrote to memory of 4576 4540 rundll32.exe rundll32.exe PID 4540 wrote to memory of 4576 4540 rundll32.exe rundll32.exe PID 4576 wrote to memory of 692 4576 rundll32.exe rundll32.exe PID 4576 wrote to memory of 692 4576 rundll32.exe rundll32.exe PID 4576 wrote to memory of 692 4576 rundll32.exe rundll32.exe PID 692 wrote to memory of 3288 692 rundll32.exe rundll32.exe PID 692 wrote to memory of 3288 692 rundll32.exe rundll32.exe PID 692 wrote to memory of 3288 692 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\291f9d73bedec448403e2ae853fc365ebd0bbf13e63e5fc9474c3c1af784df2b.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\291f9d73bedec448403e2ae853fc365ebd0bbf13e63e5fc9474c3c1af784df2b.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\291f9d73bedec448403e2ae853fc365ebd0bbf13e63e5fc9474c3c1af784df2b.dll",Control_RunDLL3⤵
- Drops file in System32 directory
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Gbuasgz\puebdyoaqo.uva",rzbO4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Gbuasgz\puebdyoaqo.uva",Control_RunDLL5⤵
- 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
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/692-138-0x0000000000000000-mapping.dmp
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memory/692-140-0x0000000004950000-0x0000000004978000-memory.dmpFilesize
160KB
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memory/3288-146-0x0000000002EE0000-0x0000000002F08000-memory.dmpFilesize
160KB
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memory/3288-158-0x0000000005090000-0x00000000050B8000-memory.dmpFilesize
160KB
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memory/3288-155-0x0000000004FB0000-0x0000000004FD8000-memory.dmpFilesize
160KB
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memory/3288-152-0x0000000004ED0000-0x0000000004EF8000-memory.dmpFilesize
160KB
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memory/3288-149-0x0000000004CF0000-0x0000000004D18000-memory.dmpFilesize
160KB
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memory/3288-145-0x0000000000000000-mapping.dmp
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memory/4540-119-0x00000000041F0000-0x0000000004218000-memory.dmpFilesize
160KB
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memory/4540-118-0x0000000000000000-mapping.dmp
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memory/4576-132-0x0000000005310000-0x0000000005338000-memory.dmpFilesize
160KB
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memory/4576-139-0x00000000054D0000-0x00000000054F8000-memory.dmpFilesize
160KB
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memory/4576-122-0x0000000000000000-mapping.dmp
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memory/4576-135-0x0000000005370000-0x0000000005398000-memory.dmpFilesize
160KB
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memory/4576-123-0x0000000004A90000-0x0000000004AB8000-memory.dmpFilesize
160KB
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memory/4576-129-0x0000000005170000-0x0000000005198000-memory.dmpFilesize
160KB
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memory/4576-126-0x0000000004F80000-0x0000000004FA8000-memory.dmpFilesize
160KB