Skype[.]exe | Triage

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General

Target

Skype.exe
Size

66.8MB
MD5

c098d8d920dafe67045eb2dfbc366ed0
SHA1

1f577c4495b36350f2c69639d652f991e752b912
SHA256

37e17b0957c9b4b93bb5e72fa3a91ddd36524f1dd1d21b04dbc564649078bc79
SHA512

2789c1fdc40123a0de3b3109078b2ba3c69943c6732322fc62382e6a022b0dbbc269b139b752f37072514fb8e857f6338945fe581fc8220087d8dee96a7dbb8a
SSDEEP

1572864:MJ7zUAFZ5L+msIEczadbxHM4Y5c/hwjjORXDf80+rZ13cRHsYCKk:MJvnf5qmsIEBFxYcujjORXD7+/YsEk

Score

N/A

Malware Config

Signatures

Files

Skype.exe
.exe windows x86

20dd26497880c05caed9305b3c8b9109

Code Sign

42:1a:f2:94:09:84:19:1f:52:0a:4b:c6:24:26:a7:4b
Certificate

Issuer

CN=AddTrust External CA Root,OU=AddTrust External TTP Network,O=AddTrust AB,C=SE

Not Before

07-06-2005 08:09

Not After

30-05-2020 10:48

Subject

CN=UTN-USERFirst-Object,OU=http://www.usertrust.com,O=The USERTRUST Network,L=Salt Lake City,ST=UT,C=US

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

62:5c:4d:90:8c:d5:42:fb:ab:2e:a5:73:3f:f1:54:19
Certificate

Issuer

CN=UTN-USERFirst-Object,OU=http://www.usertrust.com,O=The USERTRUST Network,L=Salt Lake City,ST=UT,C=US

Not Before

27-04-2011 00:00

Not After

30-05-2020 10:48

Subject

CN=COMODO Time Stamping CA,O=COMODO CA Limited,L=Salford,ST=Greater Manchester,C=GB

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

2b:73:db:74:63:11:4c:5a:5b:32:4a:f2:30:57:72:49
Certificate

Issuer

CN=COMODO Time Stamping CA,O=COMODO CA Limited,L=Salford,ST=Greater Manchester,C=GB

Not Before

02-05-2019 00:00

Not After

30-05-2020 10:48

Subject

CN=Sectigo SHA-1 Time Stamping Signer,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageContentCommitment

2e:7c:87:cc:0e:93:4a:52:fe:94:fd:1c:b7:cd:34:af
Certificate

Issuer

CN=COMODO RSA Certification Authority,O=COMODO CA Limited,L=Salford,ST=Greater Manchester,C=GB

Not Before

09-05-2013 00:00

Not After

08-05-2028 23:59

Subject

CN=COMODO RSA Code Signing CA,O=COMODO CA Limited,L=Salford,ST=Greater Manchester,C=GB

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

a7:a6:d0:d0:8d:81:d3:55:f4:80:a7:34:65:3a:51:57
Certificate

Issuer

CN=COMODO RSA Code Signing CA,O=COMODO CA Limited,L=Salford,ST=Greater Manchester,C=GB

Not Before

25-09-2018 00:00

Not After

25-09-2019 23:59

Subject

CN=LLC Impulse,O=LLC Impulse,POSTALCODE=127083,STREET=Mishina street 11\, flat 11,L=Moscow,ST=Moscow region,C=RU

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

d7:e1:fe:1d:f0:6e:14:64:9b:56:ce:b0:91:1a:9d:43:88:a8:fa:b3
Signer

Actual PE Digest

d7:e1:fe:1d:f0:6e:14:64:9b:56:ce:b0:91:1a:9d:43:88:a8:fa:b3

Digest Algorithm

sha1

PE Digest Matches

true

Signature Validations

Trusted

true

Verification

Signing Certificate

CN=LLC Impulse,O=LLC Impulse,POSTALCODE=127083,STREET=Mishina street 11\, flat 11,L=Moscow,ST=Moscow region,C=RU

03-09-2019 14:24
Valid: true

Chain 1

CN=LLC Impulse,O=LLC Impulse,POSTALCODE=127083,STREET=Mishina street 11\, flat 11,L=Moscow,ST=Moscow region,C=RU

CN=COMODO RSA Code Signing CA,O=COMODO CA Limited,L=Salford,ST=Greater Manchester,C=GB

CN=COMODO RSA Certification Authority,O=COMODO CA Limited,L=Salford,ST=Greater Manchester,C=GB

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI

Imports

oleaut32

SysFreeString
SysReAllocStringLen
SysAllocStringLen

advapi32

RegQueryValueExW
RegOpenKeyExW
RegCloseKey
RegQueryValueExW
RegOpenKeyExW
RegCloseKey
OpenProcessToken
LookupPrivilegeValueW
AdjustTokenPrivileges

user32

GetKeyboardType
LoadStringW
MessageBoxA
CharNextW
CreateWindowExW
TranslateMessage
SetWindowLongW
PeekMessageW
MsgWaitForMultipleObjects
MessageBoxW
LoadStringW
GetSystemMetrics
ExitWindowsEx
DispatchMessageW
DestroyWindow
CharUpperBuffW
CallWindowProcW

kernel32

GetACP
Sleep
VirtualFree
VirtualAlloc
GetSystemInfo
GetTickCount
QueryPerformanceCounter
GetVersion
GetCurrentThreadId
VirtualQuery
WideCharToMultiByte
MultiByteToWideChar
lstrlenW
lstrcpynW
LoadLibraryExW
GetThreadLocale
GetStartupInfoA
GetProcAddress
GetModuleHandleW
GetModuleFileNameW
GetLocaleInfoW
GetCommandLineW
FreeLibrary
FindFirstFileW
FindClose
ExitProcess
WriteFile
UnhandledExceptionFilter
RtlUnwind
RaiseException
GetStdHandle
CloseHandle
TlsSetValue
TlsGetValue
LocalAlloc
GetModuleHandleW
WriteFile
WideCharToMultiByte
WaitForSingleObject
VirtualQuery
VirtualProtect
VirtualFree
VirtualAlloc
SizeofResource
SignalObjectAndWait
SetLastError
SetFilePointer
SetEvent
SetErrorMode
SetEndOfFile
ResetEvent
RemoveDirectoryW
ReadFile
MultiByteToWideChar
LockResource
LoadResource
LoadLibraryW
GetWindowsDirectoryW
GetVersionExW
GetVersion
GetUserDefaultLangID
GetThreadLocale
GetSystemInfo
GetSystemDirectoryW
GetStdHandle
GetProcAddress
GetModuleHandleW
GetModuleFileNameW
GetLocaleInfoW
GetLastError
GetFullPathNameW
GetFileSize
GetFileAttributesW
GetExitCodeProcess
GetEnvironmentVariableW
GetDiskFreeSpaceW
GetCurrentProcess
GetCommandLineW
GetCPInfo
InterlockedExchange
InterlockedCompareExchange
FreeLibrary
FormatMessageW
FindResourceW
EnumCalendarInfoW
DeleteFileW
CreateProcessW
CreateFileW
CreateEventW
CreateDirectoryW
CloseHandle
Sleep

comctl32

InitCommonControls

Sections

.text
Size: 61KB - Virtual size: 60KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.bss
Size: - Virtual size: 21KB

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: - Virtual size: 8B

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 512B - Virtual size: 24B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 403KB - Virtual size: 403KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

20dd26497880c05caed9305b3c8b9109

Code Sign

42:1a:f2:94:09:84:19:1f:52:0a:4b:c6:24:26:a7:4bCertificate

Key Usages

62:5c:4d:90:8c:d5:42:fb:ab:2e:a5:73:3f:f1:54:19Certificate

Extended Key Usages

Key Usages

2b:73:db:74:63:11:4c:5a:5b:32:4a:f2:30:57:72:49Certificate

Extended Key Usages

Key Usages

2e:7c:87:cc:0e:93:4a:52:fe:94:fd:1c:b7:cd:34:afCertificate

Extended Key Usages

Key Usages

a7:a6:d0:d0:8d:81:d3:55:f4:80:a7:34:65:3a:51:57Certificate

Extended Key Usages

Key Usages

d7:e1:fe:1d:f0:6e:14:64:9b:56:ce:b0:91:1a:9d:43:88:a8:fa:b3Signer

Signature Validations

Verification

03-09-2019 14:24 Valid: true

Chain 1

Headers

DLL Characteristics

File Characteristics

Imports

oleaut32

advapi32

user32

kernel32

comctl32

Sections

.text Size: 61KB - Virtual size: 60KB

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

.data Size: 3KB - Virtual size: 3KB

.bss Size: - Virtual size: 21KB

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

.tls Size: - Virtual size: 8B

.rdata Size: 512B - Virtual size: 24B

.rsrc Size: 403KB - Virtual size: 403KB

42:1a:f2:94:09:84:19:1f:52:0a:4b:c6:24:26:a7:4b
Certificate

62:5c:4d:90:8c:d5:42:fb:ab:2e:a5:73:3f:f1:54:19
Certificate

2b:73:db:74:63:11:4c:5a:5b:32:4a:f2:30:57:72:49
Certificate

2e:7c:87:cc:0e:93:4a:52:fe:94:fd:1c:b7:cd:34:af
Certificate

a7:a6:d0:d0:8d:81:d3:55:f4:80:a7:34:65:3a:51:57
Certificate

d7:e1:fe:1d:f0:6e:14:64:9b:56:ce:b0:91:1a:9d:43:88:a8:fa:b3
Signer

03-09-2019 14:24
Valid: true

.text
Size: 61KB - Virtual size: 60KB

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

.data
Size: 3KB - Virtual size: 3KB

.bss
Size: - Virtual size: 21KB

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

.tls
Size: - Virtual size: 8B

.rdata
Size: 512B - Virtual size: 24B

.rsrc
Size: 403KB - Virtual size: 403KB