dcrat | Client[.]rar

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General

Target

Client.rar
Size

1.2MB
MD5

634cb2770e2ec9d2c8274c158443bb41
SHA1

a5d8dc17358610a70b80bbc9107ef7ebe5e6a1a2
SHA256

02365b8b83a305c52a8f5a3b102b10bd892b086c3b10798c3d7b35d2e0af59d9
SHA512

eb135b27812abd94b823aec1bc8c161e01bb6a35ad8377c7189826d12eb40b6281351e69e909d9f58af9a8cb8d151f6a80572200d28b7e56a2529bee8701e115
SSDEEP

24576:7ERossd8OEwIDU9cOxESupsZL0WvoITFp5hni+HAXmQeM26uGQvk0bELqn:qosu8OEwIgaxmWc5D5pXHsvz3Qv1bEL2

Score

10^/10

rat dcrat

Malware Config

Signatures

DCRat payload 1 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
static1/unpack001/Client.exe	dcrat

Dcrat family
dcrat

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/Client.exe

Files

Client.rar
.rar
Client.exe
.exe windows:5 windows x86 arch:x86

fcf1390e9ce472c7270447fc5c61a0c1

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

PDB Paths

D:\Projects\WinRAR\sfx\build\sfxrar32\Release\sfxrar.pdb

Imports

kernel32

GetLastError
SetLastError
FormatMessageW
GetCurrentProcess
DeviceIoControl
SetFileTime
CloseHandle
CreateDirectoryW
RemoveDirectoryW
CreateFileW
DeleteFileW
CreateHardLinkW
GetShortPathNameW
GetLongPathNameW
MoveFileW
GetFileType
GetStdHandle
WriteFile
ReadFile
FlushFileBuffers
SetEndOfFile
SetFilePointer
SetFileAttributesW
GetFileAttributesW
FindClose
FindFirstFileW
FindNextFileW
GetVersionExW
GetCurrentDirectoryW
GetFullPathNameW
FoldStringW
GetModuleFileNameW
GetModuleHandleW
FindResourceW
FreeLibrary
GetProcAddress
GetCurrentProcessId
ExitProcess
SetThreadExecutionState
Sleep
LoadLibraryW
GetSystemDirectoryW
CompareStringW
AllocConsole
FreeConsole
AttachConsole
WriteConsoleW
GetProcessAffinityMask
CreateThread
SetThreadPriority
InitializeCriticalSection
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
SetEvent
ResetEvent
ReleaseSemaphore
WaitForSingleObject
CreateEventW
CreateSemaphoreW
GetSystemTime
SystemTimeToTzSpecificLocalTime
TzSpecificLocalTimeToSystemTime
SystemTimeToFileTime
FileTimeToLocalFileTime
LocalFileTimeToFileTime
FileTimeToSystemTime
GetCPInfo
IsDBCSLeadByte
MultiByteToWideChar
WideCharToMultiByte
GlobalAlloc
LockResource
GlobalLock
GlobalUnlock
GlobalFree
LoadResource
SizeofResource
SetCurrentDirectoryW
GetExitCodeProcess
GetLocalTime
GetTickCount
MapViewOfFile
UnmapViewOfFile
CreateFileMappingW
OpenFileMappingW
GetCommandLineW
SetEnvironmentVariableW
ExpandEnvironmentStringsW
GetTempPathW
MoveFileExW
GetLocaleInfoW
GetTimeFormatW
GetDateFormatW
GetNumberFormatW
SetFilePointerEx
GetConsoleMode
GetConsoleCP
HeapSize
SetStdHandle
GetProcessHeap
RaiseException
GetSystemInfo
VirtualProtect
VirtualQuery
LoadLibraryExA
IsProcessorFeaturePresent
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
QueryPerformanceCounter
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
TerminateProcess
RtlUnwind
EncodePointer
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
LoadLibraryExW
QueryPerformanceFrequency
GetModuleHandleExW
GetModuleFileNameA
GetACP
HeapFree
HeapAlloc
HeapReAlloc
GetStringTypeW
LCMapStringW
FindFirstFileExA
FindNextFileA
IsValidCodePage
GetOEMCP
GetCommandLineA
GetEnvironmentStringsW
FreeEnvironmentStringsW
DecodePointer

gdiplus

GdiplusShutdown
GdiplusStartup
GdipCreateHBITMAPFromBitmap
GdipCreateBitmapFromStreamICM
GdipCreateBitmapFromStream
GdipDisposeImage
GdipCloneImage
GdipFree
GdipAlloc

Sections

.text
Size: 196KB - Virtual size: 196KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 42KB - Virtual size: 41KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 4KB - Virtual size: 141KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.didat
Size: 512B - Virtual size: 392B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 282KB - Virtual size: 282KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 9KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Newtonsoft.Json.dll
.dll windows:4 windows x86 arch:x86

dae02f32a21e03ce65412f6e56942daa

Code Sign

02:ac:5c:26:6a:0b:40:9b:8f:0b:79:f2:ae:46:25:77
Certificate

Issuer

CN=DigiCert High Assurance EV Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

10/11/2006, 00:00

Not After

10/11/2031, 00:00

Subject

CN=DigiCert High Assurance EV Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

07:b0:41:8d:a5:1e:14:8c:33:1b:bc:de:b7:13:83:23
Certificate

Issuer

CN=DigiCert High Assurance EV Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

27/04/2018, 12:41

Not After

27/04/2028, 12:41

Subject

CN=.NET Foundation Projects Code Signing CA,O=.NET Foundation,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0a:71:a1:b0:c2:96:f5:c7:90:65:47:0a:3c:20:53:7e
Certificate

Issuer

CN=.NET Foundation Projects Code Signing CA,O=.NET Foundation,C=US

Not Before

25/10/2018, 00:00

Not After

29/10/2021, 12:00

Subject

SERIALNUMBER=603 389 068,CN=Json.NET (.NET Foundation),O=Json.NET (.NET Foundation),L=Redmond,ST=wa,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

09:c0:fc:46:c8:04:42:13:b5:59:8b:af:28:4f:4e:41
Certificate

Issuer

CN=DigiCert SHA2 Assured ID Timestamping CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

04/01/2017, 00:00

Not After

18/01/2028, 00:00

Subject

CN=DigiCert SHA2 Timestamp Responder,O=DigiCert,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

07/01/2016, 12:00

Not After

07/01/2031, 12:00

Subject

CN=DigiCert SHA2 Assured ID Timestamping CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

e7:f7:51:e6:72:c9:8b:01:74:26:25:32:5b:fe:58:a5:df:cb:23:3c:93:43:64:58:dc:10:9e:40:c8:d1:97:dc
Signer

Actual PE Digest

e7:f7:51:e6:72:c9:8b:01:74:26:25:32:5b:fe:58:a5:df:cb:23:3c:93:43:64:58:dc:10:9e:40:c8:d1:97:dc

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DLL

PDB Paths

/_/Src/Newtonsoft.Json/obj/Release/net45/Newtonsoft.Json.pdb

Imports

mscoree

_CorDllMain

Sections

.text
Size: 649KB - Virtual size: 648KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rsrc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 12B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Newtonsoft.Json.pdb
preferences.json
versions.json

Sharing

General

Malware Config

Signatures

Files

fcf1390e9ce472c7270447fc5c61a0c1

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

gdiplus

Sections

.text Size: 196KB - Virtual size: 196KB

.rdata Size: 42KB - Virtual size: 41KB

.data Size: 4KB - Virtual size: 141KB

.didat Size: 512B - Virtual size: 392B

.rsrc Size: 282KB - Virtual size: 282KB

.reloc Size: 9KB - Virtual size: 8KB

dae02f32a21e03ce65412f6e56942daa

Code Sign

02:ac:5c:26:6a:0b:40:9b:8f:0b:79:f2:ae:46:25:77Certificate

Key Usages

07:b0:41:8d:a5:1e:14:8c:33:1b:bc:de:b7:13:83:23Certificate

Extended Key Usages

Key Usages

0a:71:a1:b0:c2:96:f5:c7:90:65:47:0a:3c:20:53:7eCertificate

Extended Key Usages

Key Usages

09:c0:fc:46:c8:04:42:13:b5:59:8b:af:28:4f:4e:41Certificate

Extended Key Usages

Key Usages

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15Certificate

Extended Key Usages

Key Usages

e7:f7:51:e6:72:c9:8b:01:74:26:25:32:5b:fe:58:a5:df:cb:23:3c:93:43:64:58:dc:10:9e:40:c8:d1:97:dcSigner

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

mscoree

Sections

.text Size: 649KB - Virtual size: 648KB

.rsrc Size: 1KB - Virtual size: 1KB

.reloc Size: 512B - Virtual size: 12B

.text
Size: 196KB - Virtual size: 196KB

.rdata
Size: 42KB - Virtual size: 41KB

.data
Size: 4KB - Virtual size: 141KB

.didat
Size: 512B - Virtual size: 392B

.rsrc
Size: 282KB - Virtual size: 282KB

.reloc
Size: 9KB - Virtual size: 8KB

02:ac:5c:26:6a:0b:40:9b:8f:0b:79:f2:ae:46:25:77
Certificate

07:b0:41:8d:a5:1e:14:8c:33:1b:bc:de:b7:13:83:23
Certificate

0a:71:a1:b0:c2:96:f5:c7:90:65:47:0a:3c:20:53:7e
Certificate

09:c0:fc:46:c8:04:42:13:b5:59:8b:af:28:4f:4e:41
Certificate

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15
Certificate

e7:f7:51:e6:72:c9:8b:01:74:26:25:32:5b:fe:58:a5:df:cb:23:3c:93:43:64:58:dc:10:9e:40:c8:d1:97:dc
Signer

.text
Size: 649KB - Virtual size: 648KB

.rsrc
Size: 1KB - Virtual size: 1KB

.reloc
Size: 512B - Virtual size: 12B