Teams[.]exe | Triage

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General

Target

Teams.exe
Size

120.5MB
MD5

eac9ce71e44ae160d9fd35feb9615939
SHA1

7aa571aebdf97ea6cd9aca1f1e604e573238bec7
SHA256

5cd3badf6bf0c963748fb808c613912565d521decd7ff34dc3109c7c4bb0d859
SHA512

1be965ace82037baa2ef310585666ec9a31a7be59186cb0f4d13eebcf4dbbacd2fa186cc77663ac9bc1a142244d870c0add62c89599ed66f7b4bc703d4e47da5
SSDEEP

3145728:2JdL3vcyWA2H7alcpBm8KQv8wU1eUu4N6hA4r3Uy8MW:i/2H7aSpg8K7eUu4NEA4DUy8MW

Score

N/A

Malware Config

Signatures

Files

Teams.exe
.exe windows x86

0ae8577c85edd6de7ab512e6ace9adb0

Code Sign

33:00:00:04:39:f6:1f:7a:67:6d:a0:00:af:00:00:00:00:04:39
Certificate

Issuer

CN=Microsoft Code Signing PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

02/09/2021, 18:25

Not After

01/09/2022, 18:25

Subject

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

61:0c:52:4c:00:00:00:00:00:03
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

06/07/2010, 20:40

Not After

06/07/2025, 20:50

Subject

CN=Microsoft Code Signing PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

33:00:00:02:55:18:1d:a4:2e:e0:86:fc:15:00:00:00:00:02:55
Certificate

Issuer

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

02/09/2021, 18:33

Not After

01/09/2022, 18:33

Subject

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

61:0e:90:d2:00:00:00:00:00:03
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

08/07/2011, 20:59

Not After

08/07/2026, 21:09

Subject

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

7f:93:72:2d:a4:3c:ab:d8:4b:51:45:9b:4f:db:52:cf:87:4a:33:e8:39:91:79:95:e4:57:f8:45:a4:1f:de:29
Signer

Actual PE Digest

7f:93:72:2d:a4:3c:ab:d8:4b:51:45:9b:4f:db:52:cf:87:4a:33:e8:39:91:79:95:e4:57:f8:45:a4:1f:de:29

Digest Algorithm

sha256

PE Digest Matches

true

Signature Validations

Trusted

false

Verification

Signing Certificate

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

15/12/2022, 13:59
Valid: false

7f:93:72:2d:a4:3c:ab:d8:4b:51:45:9b:4f:db:52:cf:87:4a:33:e8:39:91:79:95:e4:57:f8:45:a4:1f:de:29
Signer

Actual PE Digest

7f:93:72:2d:a4:3c:ab:d8:4b:51:45:9b:4f:db:52:cf:87:4a:33:e8:39:91:79:95:e4:57:f8:45:a4:1f:de:29

Digest Algorithm

sha256

PE Digest Matches

true

Signature Validations

Trusted

false

Verification

Signing Certificate

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

15/12/2022, 13:59
Valid: false

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

Imports

kernel32

InitializeCriticalSectionEx
GetFileAttributesW
CreateFileW
SetFilePointer
ReadFile
SystemTimeToFileTime
GetCurrentDirectoryW
MultiByteToWideChar
LocalFileTimeToFileTime
WideCharToMultiByte
CreateDirectoryW
WriteFile
SetFileTime
FreeResource
LoadResource
FindResourceW
SizeofResource
LockResource
CopyFileW
FindFirstFileW
FindClose
CreateProcessW
IsWow64Process
lstrcmpiW
LeaveCriticalSection
RaiseException
EnterCriticalSection
LoadLibraryExW
GetCurrentThreadId
DecodePointer
WriteConsoleW
SetStdHandle
FreeLibrary
GetProcessHeap
SetEnvironmentVariableA
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineW
LoadLibraryW
GetCurrentProcess
GetModuleFileNameW
DeleteFileW
CloseHandle
GetExitCodeProcess
WaitForSingleObject
MoveFileW
GetTempFileNameW
GetLastError
GetTempPathW
lstrlenW
DeleteCriticalSection
GetModuleHandleW
GetProcAddress
VerSetConditionMask
GetCommandLineA
GetOEMCP
IsValidCodePage
FindNextFileW
FindFirstFileExW
HeapReAlloc
HeapSize
ReadConsoleW
SetFilePointerEx
GetConsoleMode
SetEndOfFile
GetConsoleCP
FlushFileBuffers
GetTimeZoneInformation
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
GetTimeFormatW
GetDateFormatW
GetFileType
HeapAlloc
HeapFree
VerifyVersionInfoW
GetStringTypeW
SetLastError
InitializeCriticalSectionAndSpinCount
CreateEventW
SwitchToThread
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetSystemTimeAsFileTime
EncodePointer
CompareStringW
LCMapStringW
GetLocaleInfoW
GetCPInfo
IsDebuggerPresent
OutputDebugStringW
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
SetEvent
ResetEvent
WaitForSingleObjectEx
GetStartupInfoW
QueryPerformanceCounter
GetCurrentProcessId
InitializeSListHead
RtlUnwind
ExitProcess
GetModuleHandleExW
GetStdHandle
GetACP

user32

ExitWindowsEx
wsprintfW
CharNextW
MessageBoxW
DestroyWindow
GetActiveWindow
LoadStringW

advapi32

GetTokenInformation
RegOpenKeyExW
RegDeleteValueW
RegCreateKeyExW
RegEnumKeyExW
RegQueryInfoKeyW
RegDeleteKeyW
RegGetValueW
RegCloseKey
GetUserNameW
AdjustTokenPrivileges
OpenProcessToken
LookupPrivilegeValueW
RegSetValueExW
RegQueryValueExW

shell32

ShellExecuteExW
SHGetFolderPathW
ShellExecuteW

ole32

CoTaskMemRealloc
CoTaskMemAlloc
CoInitialize
CoUninitialize
CoTaskMemFree
CoCreateInstance

oleaut32

VariantInit
SysAllocString
SysFreeString
VarUI4FromStr
VariantClear

urlmon

URLDownloadToFileW

version

GetFileVersionInfoSizeExW
VerQueryValueW
GetFileVersionInfoExW

shlwapi

PathFileExistsW

comctl32

InitCommonControlsEx

Sections

.text
Size: 210KB - Virtual size: 209KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 87KB - Virtual size: 86KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 6KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 120.2MB - Virtual size: 120.2MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 12KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

0ae8577c85edd6de7ab512e6ace9adb0

Code Sign

33:00:00:04:39:f6:1f:7a:67:6d:a0:00:af:00:00:00:00:04:39Certificate

Extended Key Usages

61:0c:52:4c:00:00:00:00:00:03Certificate

Key Usages

33:00:00:02:55:18:1d:a4:2e:e0:86:fc:15:00:00:00:00:02:55Certificate

Extended Key Usages

61:0e:90:d2:00:00:00:00:00:03Certificate

Key Usages

7f:93:72:2d:a4:3c:ab:d8:4b:51:45:9b:4f:db:52:cf:87:4a:33:e8:39:91:79:95:e4:57:f8:45:a4:1f:de:29Signer

Signature Validations

Verification

15/12/2022, 13:59 Valid: false

7f:93:72:2d:a4:3c:ab:d8:4b:51:45:9b:4f:db:52:cf:87:4a:33:e8:39:91:79:95:e4:57:f8:45:a4:1f:de:29Signer

Signature Validations

Verification

15/12/2022, 13:59 Valid: false

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

advapi32

shell32

ole32

oleaut32

urlmon

version

shlwapi

comctl32

Sections

.text Size: 210KB - Virtual size: 209KB

.rdata Size: 87KB - Virtual size: 86KB

.data Size: 6KB - Virtual size: 9KB

.rsrc Size: 120.2MB - Virtual size: 120.2MB

.reloc Size: 12KB - Virtual size: 12KB

33:00:00:04:39:f6:1f:7a:67:6d:a0:00:af:00:00:00:00:04:39
Certificate

61:0c:52:4c:00:00:00:00:00:03
Certificate

33:00:00:02:55:18:1d:a4:2e:e0:86:fc:15:00:00:00:00:02:55
Certificate

61:0e:90:d2:00:00:00:00:00:03
Certificate

7f:93:72:2d:a4:3c:ab:d8:4b:51:45:9b:4f:db:52:cf:87:4a:33:e8:39:91:79:95:e4:57:f8:45:a4:1f:de:29
Signer

15/12/2022, 13:59
Valid: false

7f:93:72:2d:a4:3c:ab:d8:4b:51:45:9b:4f:db:52:cf:87:4a:33:e8:39:91:79:95:e4:57:f8:45:a4:1f:de:29
Signer

15/12/2022, 13:59
Valid: false

.text
Size: 210KB - Virtual size: 209KB

.rdata
Size: 87KB - Virtual size: 86KB

.data
Size: 6KB - Virtual size: 9KB

.rsrc
Size: 120.2MB - Virtual size: 120.2MB

.reloc
Size: 12KB - Virtual size: 12KB