DropboxCrashHandler[.]exe

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General

Target

DropboxCrashHandler.exe
Size

129KB
MD5

4d0ccec5560d013004c6143a8b46b4fd
SHA1

4881c84035d327999e156555233b85e2d5e252b0
SHA256

02618e6399ae8e99df5a4f523239451e5a5d23a8c80ea5afeecfeb29de4be4a7
SHA512

f2f5c6784f100a933328b8c2a403c233e42f81ee339c189c088afbb48f3e73a2bea2500e69e88ac6ddd0c27204eaf91811c6b35bd3d42ca67288cede6cb62f3b
SSDEEP

3072:9ZOOxLE4GTnZcyg2QltfW8cEzeIKnOZnLtFXsq/JVKjEWclhxu:uOxLEbTzKz0

Score

1^/10

Malware Config

Signatures

Files

DropboxCrashHandler.exe
.exe windows:5 windows x86 arch:x86

907bd326a444dbc0e31cef85b0646f45

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

4c:5a:c8:5d:e9:4a:8f:69:b3:6d:77:cd:94:a0:5c:f0:8f:b4:8c:fa:4c:59:2e:ee:dc:93:9d:4e:3e:41:6e:7d
Signer

Actual PE Digest

4c:5a:c8:5d:e9:4a:8f:69:b3:6d:77:cd:94:a0:5c:f0:8f:b4:8c:fa:4c:59:2e:ee:dc:93:9d:4e:3e:41:6e:7d

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

PDB Paths

DropboxUpdate_unsigned.pdb

Imports

advapi32

RegOpenKeyExW

kernel32

GetCommandLineW
FindResourceExW
FindResourceW
FreeLibrary
LoadResource
LoadLibraryExW
VerSetConditionMask
GetModuleHandleW
SizeofResource
GetModuleFileNameW
lstrlenW
RaiseException
VerifyVersionInfoW
GetLastError
GetProcAddress
LockResource
GetFileAttributesExW
SetLastError
LocalAlloc
CloseHandle
SetStdHandle
InterlockedExchange
LoadLibraryA
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSection
DeleteCriticalSection
HeapDestroy
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
GetProcessHeap
TerminateProcess
GetCurrentProcess
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsDebuggerPresent
GetStartupInfoW
WideCharToMultiByte
TlsGetValue
TlsAlloc
TlsSetValue
TlsFree
InterlockedIncrement
GetCurrentThreadId
InterlockedDecrement
Sleep
ExitProcess
WriteFile
GetStdHandle
GetModuleFileNameA
FreeEnvironmentStringsW
GetEnvironmentStringsW
SetHandleCount
GetFileType
GetStartupInfoA
HeapCreate
VirtualFree
QueryPerformanceCounter
GetTickCount
GetCurrentProcessId
GetSystemTimeAsFileTime
VirtualAlloc
RtlUnwind
GetCPInfo
GetACP
GetOEMCP
IsValidCodePage
InitializeCriticalSectionAndSpinCount
LCMapStringA
MultiByteToWideChar
LCMapStringW
GetStringTypeA
GetStringTypeW
GetLocaleInfoA
GetConsoleCP
GetConsoleMode
FlushFileBuffers
WriteConsoleA
GetConsoleOutputCP
WriteConsoleW
SetFilePointer
CreateFileA

ole32

CoCreateGuid

Sections

.text
Size: 51KB - Virtual size: 51KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 4KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.text/DE
Size: 12KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 44KB - Virtual size: 44KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

907bd326a444dbc0e31cef85b0646f45

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

4c:5a:c8:5d:e9:4a:8f:69:b3:6d:77:cd:94:a0:5c:f0:8f:b4:8c:fa:4c:59:2e:ee:dc:93:9d:4e:3e:41:6e:7dSigner

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

advapi32

kernel32

ole32

Sections

.text Size: 51KB - Virtual size: 51KB

.data Size: 4KB - Virtual size: 11KB

.text/DE Size: 12KB - Virtual size: 12KB

.rsrc Size: 44KB - Virtual size: 44KB

.reloc Size: 6KB - Virtual size: 6KB

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

4c:5a:c8:5d:e9:4a:8f:69:b3:6d:77:cd:94:a0:5c:f0:8f:b4:8c:fa:4c:59:2e:ee:dc:93:9d:4e:3e:41:6e:7d
Signer

.text
Size: 51KB - Virtual size: 51KB

.data
Size: 4KB - Virtual size: 11KB

.text/DE
Size: 12KB - Virtual size: 12KB

.rsrc
Size: 44KB - Virtual size: 44KB

.reloc
Size: 6KB - Virtual size: 6KB