windowsupdateagent-7[.]6-x64[.]exe

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General

Target

windowsupdateagent-7.6-x64.exe
Size

10.8MB
MD5

93bcbb12d6d53d40a14f2c2899172ee6
SHA1

b0183f1eeb1cbeb75f78fb2b18e5dc12a43a545a
SHA256

d82a85e4874fbee6cb70479a5e146bb373a82cf8d898c95a600358b6e1933c24
SHA512

59f9d407e37605fe5d1704314f13bed38523f9aeba3ee52ee0ce333d11ae56eb1f5a30c0a9c8866083b39990a55131dbd8720de056663ed4a88dd5b08af60e3f
SSDEEP

196608:auJnoi8aLxKR7tCx7rLAZe0wuCKlqy9lmXy/xsD:lJLxitCtPAs0wurqy9u82

Score

1^/10

Malware Config

Signatures

Files

windowsupdateagent-7.6-x64.exe
.exe windows x64

8b9873baa88598b3a74892c850a003ce

Code Sign

33:00:00:00:34:24:31:40:c9:a0:c1:79:8d:00:00:00:00:00:34
Certificate

Issuer

CN=Microsoft Time-Stamp PCA,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

27/03/2013, 20:08

Not After

27/06/2014, 20:08

Subject

CN=Microsoft Time-Stamp Service,OU=MOPR+OU=nCipher DSE ESN:B8EC-30A4-7144,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

61:16:68:34:00:00:00:00:00:1c
Certificate

Issuer

CN=Microsoft Root Certificate Authority,0.9.2342.19200300.100.1.25=#13096d6963726f736f6674,0.9.2342.19200300.100.1.25=#1303636f6d

Not Before

03/04/2007, 12:53

Not After

03/04/2021, 13:03

Subject

CN=Microsoft Time-Stamp PCA,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

33:00:00:00:08:9f:e2:e3:d3:a6:94:cf:a4:00:00:00:00:00:08
Certificate

Issuer

CN=Microsoft Update Signing CA 1.1,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

02/07/2013, 21:21

Not After

02/10/2014, 21:21

Subject

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

Extended Key Usages

ExtKeyUsageCodeSigning

33:00:00:00:37:69:68:1e:8d:c4:0d:ac:ff:00:00:00:00:00:37
Certificate

Issuer

CN=Microsoft Root Certificate Authority,0.9.2342.19200300.100.1.25=#13096d6963726f736f6674,0.9.2342.19200300.100.1.25=#1303636f6d

Not Before

31/05/2012, 06:01

Not After

09/05/2021, 23:28

Subject

CN=Microsoft Update Signing CA 1.1,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

33:00:00:00:08:6a:ea:3b:e3:d6:1e:15:6d:00:00:00:00:00:08
Certificate

Issuer

CN=Microsoft Update Signing CA 2.2,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

27/08/2013, 17:46

Not After

27/11/2014, 17:46

Subject

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

Extended Key Usages

ExtKeyUsageCodeSigning

33:00:00:00:08:59:e3:94:e0:54:c7:17:5d:00:00:00:00:00:08
Certificate

Issuer

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

Not Before

19/06/2012, 22:53

Not After

19/06/2027, 23:03

Subject

CN=Microsoft Update Signing CA 2.2,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

60:ee:c2:c5:b2:be:74:01:d4:8a:5f:07:3d:0e:ab:57:60:80:ea:fe:9b:54:90:65:49:82:7c:e1:48:2f:63:91
Signer

Actual PE Digest

60:ee:c2:c5:b2:be:74:01:d4:8a:5f:07:3d:0e:ab:57:60:80:ea:fe:9b:54:90:65:49:82:7c:e1:48:2f:63:91

Digest Algorithm

sha256

PE Digest Matches

true

78:99:9a:01:5d:98:e0:4a:f4:63:80:28:32:ed:38:20:11:e0:31:05
Signer

Actual PE Digest

78:99:9a:01:5d:98:e0:4a:f4:63:80:28:32:ed:38:20:11:e0:31:05

Digest Algorithm

sha1

PE Digest Matches

true

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
IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP
IMAGE_FILE_NET_RUN_FROM_SWAP

Imports

advapi32

InitiateSystemShutdownA
OpenProcessToken
GetTokenInformation
RegQueryValueExA
CryptReleaseContext
InitializeSecurityDescriptor
SetSecurityDescriptorDacl
CryptAcquireContextA
RegOpenKeyExA
CryptGenRandom
InitializeAcl
AllocateAndInitializeSid
AddAccessAllowedAce
GetLengthSid
RegCloseKey

kernel32

SetErrorMode
FreeLibrary
HeapAlloc
SystemTimeToFileTime
GetCurrentProcess
QueryDosDeviceA
HeapFree
WaitForSingleObject
SetEvent
GetTickCount
GetProcessHeap
ExpandEnvironmentStringsA
FormatMessageA
SetFileTime
WriteFile
GetCommandLineA
GetDriveTypeA
WideCharToMultiByte
InitializeCriticalSectionAndSpinCount
Sleep
CreateEventA
GetFileAttributesA
LeaveCriticalSection
DosDateTimeToFileTime
CreateProcessA
TerminateProcess
ReadFile
GetSystemDirectoryA
GetEnvironmentVariableA
FlushFileBuffers
SetEndOfFile
GetLastError
SetLastError
GetProcAddress
RemoveDirectoryA
EnterCriticalSection
LoadLibraryA
CreateEventW
OpenEventA
GetDiskFreeSpaceA
DeviceIoControl
WaitForMultipleObjects
SetEnvironmentVariableA
GetModuleFileNameA
GetCurrentDirectoryA
DeleteCriticalSection
GetVersionExA
CloseHandle
GetSystemTime
DeleteFileA
CreateThread
LocalFileTimeToFileTime
GetCurrentThreadId
GetCurrentProcessId
QueryPerformanceCounter
GetModuleHandleW
OutputDebugStringA
SetUnhandledExceptionFilter
UnhandledExceptionFilter
MoveFileExA
SetFilePointer
CreateDirectoryA
CreateFileA
ExitProcess
GetExitCodeProcess
GetSystemTimeAsFileTime

user32

LoadStringA
SetParent
SendMessageA
MessageBoxA
EndDialog
ShowWindow
DialogBoxParamA
SendDlgItemMessageA

msvcrt

_XcptFilter
_amsg_exit
__getmainargs
__set_app_type
exit
_exit
_cexit
__setusermatherr
_initterm
__C_specific_handler
_fmode
_commode
memcpy
memset
?terminate@@YAXXZ
isleadbyte
_fileno
_iob
_snprintf
_itoa
wctomb
__badioinfo
__pioinfo
_isatty
_write
_lseeki64
_errno
_strlwr
_vsnprintf
_strnicmp
towlower
tolower
strchr
strstr
_wcsicmp
_stricmp
malloc
free
strrchr

ntdll

RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
NtAdjustPrivilegesToken
NtOpenProcessToken
NtClose
NtShutdownSystem

comctl32

ord17

shell32

SHGetPathFromIDListA
SHBrowseForFolderA

cabinet

ord21
ord20
ord22

shlwapi

PathAddBackslashA
PathCombineA

Sections

.text
Size: 25KB - Virtual size: 24KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 69KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 1024B - Virtual size: 816B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 440B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

8b9873baa88598b3a74892c850a003ce

Code Sign

33:00:00:00:34:24:31:40:c9:a0:c1:79:8d:00:00:00:00:00:34Certificate

Extended Key Usages

61:16:68:34:00:00:00:00:00:1cCertificate

Extended Key Usages

Key Usages

33:00:00:00:08:9f:e2:e3:d3:a6:94:cf:a4:00:00:00:00:00:08Certificate

Extended Key Usages

33:00:00:00:37:69:68:1e:8d:c4:0d:ac:ff:00:00:00:00:00:37Certificate

Extended Key Usages

Key Usages

33:00:00:00:08:6a:ea:3b:e3:d6:1e:15:6d:00:00:00:00:00:08Certificate

Extended Key Usages

33:00:00:00:08:59:e3:94:e0:54:c7:17:5d:00:00:00:00:00:08Certificate

Extended Key Usages

Key Usages

60:ee:c2:c5:b2:be:74:01:d4:8a:5f:07:3d:0e:ab:57:60:80:ea:fe:9b:54:90:65:49:82:7c:e1:48:2f:63:91Signer

78:99:9a:01:5d:98:e0:4a:f4:63:80:28:32:ed:38:20:11:e0:31:05Signer

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

kernel32

user32

msvcrt

ntdll

comctl32

shell32

cabinet

shlwapi

Sections

.text Size: 25KB - Virtual size: 24KB

.data Size: 512B - Virtual size: 69KB

.pdata Size: 1024B - Virtual size: 816B

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

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

.rsrc Size: 4KB - Virtual size: 3KB

.reloc Size: 512B - Virtual size: 440B

33:00:00:00:34:24:31:40:c9:a0:c1:79:8d:00:00:00:00:00:34
Certificate

61:16:68:34:00:00:00:00:00:1c
Certificate

33:00:00:00:08:9f:e2:e3:d3:a6:94:cf:a4:00:00:00:00:00:08
Certificate

33:00:00:00:37:69:68:1e:8d:c4:0d:ac:ff:00:00:00:00:00:37
Certificate

33:00:00:00:08:6a:ea:3b:e3:d6:1e:15:6d:00:00:00:00:00:08
Certificate

33:00:00:00:08:59:e3:94:e0:54:c7:17:5d:00:00:00:00:00:08
Certificate

60:ee:c2:c5:b2:be:74:01:d4:8a:5f:07:3d:0e:ab:57:60:80:ea:fe:9b:54:90:65:49:82:7c:e1:48:2f:63:91
Signer

78:99:9a:01:5d:98:e0:4a:f4:63:80:28:32:ed:38:20:11:e0:31:05
Signer

.text
Size: 25KB - Virtual size: 24KB

.data
Size: 512B - Virtual size: 69KB

.pdata
Size: 1024B - Virtual size: 816B

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

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

.rsrc
Size: 4KB - Virtual size: 3KB

.reloc
Size: 512B - Virtual size: 440B