Dropbox[.]exe | Triage

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General

Target

Dropbox.exe
Size

10.8MB
MD5

953aee04eeec140f44f19f3ba0f1f52f
SHA1

211c3cc5f631e02be5abc5677b81ff53480b77c9
SHA256

168801be601695325103a5396d79cc29e2d6c7aa4108501416ac4ed33373e6b8
SHA512

745990fc39934ded0a7b7ed7311d26bc56b8acd9d1671fbc218bd56bbd7b4855003d9a303efd2faf6515de9d0abbe4fac251f6691caa7f5f26e8e33fd2e416b2
SSDEEP

49152:heD1tchNvt0RA48OfFHKiqX+0o+zC+wI5KkxwVwHVwBCet6IuKgIyIbX8+UIEVT0:FKJiw8uBCet6DvWpSTUlDgC7

Score

N/A

Malware Config

Signatures

Files

Dropbox.exe
.exe windows x64

f94a73c0d7090df8f352329300dda298

Code Sign

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08
Certificate

Issuer

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

Not Before

22/10/2013, 12:00

Not After

22/10/2028, 12:00

Subject

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

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0f:7a:16:55:50:16:3d:5e:d7:d1:ca:a3:fc:13:da:06
Certificate

Issuer

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

Not Before

16/11/2020, 00:00

Not After

09/02/2024, 23:59

Subject

CN=Dropbox\, Inc,O=Dropbox\, Inc,L=San Francisco,ST=California,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5a
Certificate

Issuer

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Not Before

21/09/2022, 00:00

Not After

21/11/2033, 23:59

Subject

CN=DigiCert Timestamp 2022 - 2,O=DigiCert,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

23/03/2022, 00:00

Not After

22/03/2037, 23:59

Subject

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

Issuer

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

Not Before

01/08/2022, 00:00

Not After

09/11/2031, 23:59

Subject

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

20:3a:bb:8a:65:a1:fe:e9:f2:7d:4e:6a:6c:e2:ff:cd:71:52:67:9d:6a:b4:42:bd:4c:fe:3c:80:f4:3e:16:66
Signer

Actual PE Digest

20:3a:bb:8a:65:a1:fe:e9:f2:7d:4e:6a:6c:e2:ff:cd:71:52:67:9d:6a:b4:42:bd:4c:fe:3c:80:f4:3e:16:66

Digest Algorithm

sha256

PE Digest Matches

true

Signature Validations

Trusted

true

Verification

Signing Certificate

CN=Dropbox\, Inc,O=Dropbox\, Inc,L=San Francisco,ST=California,C=US

13/12/2022, 22:30
Valid: true

Chain 1

CN=Dropbox\, Inc,O=Dropbox\, Inc,L=San Francisco,ST=California,C=US

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

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

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

dropbox_core

bootstrap_abort
dbxlog_log
bootstrap_application
apex_context_get_current

advapi32

AccessCheck
EventWrite
EventRegister
RegOpenKeyExW
RegGetValueW
RevertToSelf
RegDisablePredefinedCache
RegCloseKey
ConvertStringSecurityDescriptorToSecurityDescriptorW
GetSecurityDescriptorSacl
SetSecurityInfo
ConvertStringSidToSidW
GetLengthSid
SetTokenInformation
OpenProcessToken
GetKernelObjectSecurity
GetAce
SetKernelObjectSecurity
DuplicateTokenEx
ConvertSidToStringSidW
FreeSid
ImpersonateLoggedOnUser
MapGenericMask
GetNamedSecurityInfoW
IsValidSid
EqualSid
EventUnregister
CreateProcessAsUserW
GetTokenInformation
SetThreadToken
RegCreateKeyExW
RegQueryValueExW
CreateRestrictedToken
DuplicateToken
LookupPrivilegeValueW
CopySid
CreateWellKnownSid
InitializeSid
GetSidSubAuthority
GetSecurityInfo
SetEntriesInAclW
SystemFunction036

kernel32

WriteConsoleW
GetStdHandle
SetEnvironmentVariableW
GetFileType
OpenMutexW
FreeLibrary
GetProcAddress
LoadLibraryW
SetDllDirectoryW
GetLastError
GetModuleFileNameW
VerSetConditionMask
GetFileAttributesW
GetProcessTimes
GetCurrentProcess
GetModuleHandleW
VerifyVersionInfoW
MultiByteToWideChar
WideCharToMultiByte
GetModuleHandleA
HeapSetInformation
GetCurrentThread
CreateIoCompletionPort
SetLastError
CreateEventW
CreateThread
ResetEvent
GetQueuedCompletionStatus
UnregisterWait
SetEvent
RegisterWaitForSingleObject
TerminateJobObject
PostQueuedCompletionStatus
WaitForSingleObject
DuplicateHandle
SetInformationJobObject
GetCurrentThreadId
TerminateProcess
GetUserDefaultLangID
GetUserDefaultLCID
GetUserDefaultLocaleName
EnumSystemLocalesEx
HeapDestroy
GetTickCount
GetVersionExW
GetProductInfo
GetNativeSystemInfo
IsWow64Process
LocalFree
GetCurrentProcessId
ProcessIdToSessionId
InitializeCriticalSection
EnterCriticalSection
LeaveCriticalSection
UnregisterWaitEx
DeleteCriticalSection
Sleep
IsDebuggerPresent
RaiseException
CloseHandle
GetThreadId
SetThreadPriority
GetThreadPriority
SetHandleInformation
AssignProcessToJobObject
WriteProcessMemory
CreateFileMappingW
MapViewOfFile
GetCurrentProcessorNumber
SetThreadAffinityMask
VirtualFree
GetProcessHandleCount
GetProcessHeaps
SignalObjectAndWait
ExpandEnvironmentStringsW
QueryDosDeviceW
GetLongPathNameW
CreateFileW
VirtualProtectEx
VirtualAllocEx
VirtualFreeEx
ReadProcessMemory
GetCurrentDirectoryW
GetLocalTime
OutputDebugStringA
WriteFile
FormatMessageA
LoadLibraryExW
GetModuleHandleExW
TryAcquireSRWLockExclusive
ReleaseSRWLockExclusive
QueryPerformanceCounter
GetSystemTimeAsFileTime
QueryPerformanceFrequency
QueryThreadCycleTime
CreateNamedPipeW
CreateProcessW
HeapSize
QueryInformationJobObject
DeleteProcThreadAttributeList
InitializeProcThreadAttributeList
UpdateProcThreadAttribute
CreateMutexW
UnmapViewOfFile
GetCommandLineW
CreateDirectoryW
ReadFile
SetCurrentDirectoryW
TlsGetValue
AcquireSRWLockExclusive
SearchPathW
lstrlenW
DebugBreak
RtlUnwind
SetFilePointerEx
GetFileSizeEx
SetEndOfFile
FlushFileBuffers
FindClose
FindNextFileW
FindFirstFileExW
SetUnhandledExceptionFilter
RtlCaptureStackBackTrace
TlsAlloc
TlsFree
TlsSetValue
GetEnvironmentStringsW
GetOEMCP
GetACP
IsValidCodePage
HeapReAlloc
ReadConsoleW
EnumSystemLocalesW
IsValidLocale
GetLocaleInfoW
LCMapStringW
CompareStringW
CreateRemoteThread
FreeEnvironmentStringsW
HeapFree
HeapAlloc
GetProcessHeap
SetStdHandle
ExitProcess
GetConsoleMode
GetConsoleOutputCP
GetCommandLineA
RtlUnwindEx
RtlPcToFileHeader
InitializeSListHead
IsProcessorFeaturePresent
GetStartupInfoW
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
WaitForSingleObjectEx
InitializeCriticalSectionAndSpinCount
GetCPInfo
LCMapStringEx
DecodePointer
EncodePointer
InitializeCriticalSectionEx
GetStringTypeW
CreateJobObjectW

ole32

CoUninitialize
CoInitializeEx
CoTaskMemFree

shell32

SHGetKnownFolderPath
ShellExecuteW

user32

SendMessageW
AllowSetForegroundWindow
FindWindowW
GetWindowThreadProcessId
CloseDesktop
CloseWindowStation
GetUserObjectInformationW
GetThreadDesktop
GetProcessWindowStation
CreateWindowStationW
SetProcessWindowStation
CreateDesktopW

winmm

timeGetTime

comctl32

ord344

Exports

Exports

GetHandleVerifier
IsSandboxedProcess

Sections

.text
Size: 600KB - Virtual size: 600KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 139KB - Virtual size: 139KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 11KB - Virtual size: 26KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 24KB - Virtual size: 24KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 244B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 10.0MB - Virtual size: 10.0MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 5KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

f94a73c0d7090df8f352329300dda298

Code Sign

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08Certificate

Extended Key Usages

Key Usages

0f:7a:16:55:50:16:3d:5e:d7:d1:ca:a3:fc:13:da:06Certificate

Extended Key Usages

Key Usages

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5aCertificate

Extended Key Usages

Key Usages

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5bCertificate

Extended Key Usages

Key Usages

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5aCertificate

Key Usages

20:3a:bb:8a:65:a1:fe:e9:f2:7d:4e:6a:6c:e2:ff:cd:71:52:67:9d:6a:b4:42:bd:4c:fe:3c:80:f4:3e:16:66Signer

Signature Validations

Verification

13/12/2022, 22:30 Valid: true

Chain 1

Headers

DLL Characteristics

File Characteristics

Imports

dropbox_core

advapi32

kernel32

ole32

shell32

user32

winmm

comctl32

Exports

Exports

Sections

.text Size: 600KB - Virtual size: 600KB

.rdata Size: 139KB - Virtual size: 139KB

.data Size: 11KB - Virtual size: 26KB

.pdata Size: 24KB - Virtual size: 24KB

_RDATA Size: 512B - Virtual size: 244B

.rsrc Size: 10.0MB - Virtual size: 10.0MB

.reloc Size: 5KB - Virtual size: 5KB

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08
Certificate

0f:7a:16:55:50:16:3d:5e:d7:d1:ca:a3:fc:13:da:06
Certificate

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5a
Certificate

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

20:3a:bb:8a:65:a1:fe:e9:f2:7d:4e:6a:6c:e2:ff:cd:71:52:67:9d:6a:b4:42:bd:4c:fe:3c:80:f4:3e:16:66
Signer

13/12/2022, 22:30
Valid: true

.text
Size: 600KB - Virtual size: 600KB

.rdata
Size: 139KB - Virtual size: 139KB

.data
Size: 11KB - Virtual size: 26KB

.pdata
Size: 24KB - Virtual size: 24KB

_RDATA
Size: 512B - Virtual size: 244B

.rsrc
Size: 10.0MB - Virtual size: 10.0MB

.reloc
Size: 5KB - Virtual size: 5KB