kotcka[.]exe | Triage

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General

Target

kotcka.exe
Size

2.1MB
MD5

34e3d894549030e3ad23dde08aa53760
SHA1

5ea53f1ab3bc48f08af761f6cb61a480f38fdd9a
SHA256

594b9804451c84b653f1defdd4340cf2ee15bc6ab51b50b2189b60d8a78a515b
SHA512

7543bfad3e07ee86edb4b17a9cab7b55a4fd8399fc963469f210af0068f6845d273ffd89cacfcafd6946805101e55773fdc515cbafd115b96088213ad4057a8d
SSDEEP

49152:bBuZrEU+nAMJaAAOygrNpjH8s2rDHup4UKnrIvBG+:tkL+n6AAOygR8smDHuGUKrIv4+

Score

1^/10

Malware Config

Signatures

Files

kotcka.exe
.exe windows:6 windows x86 arch:x86

Password: 123

e569e6f445d32ba23766ad67d1e3787f

Code Sign

7b:2c:9b:d3:16:80:32:99
Certificate

Issuer

CN=SSL.com Root Certification Authority RSA,O=SSL Corporation,L=Houston,ST=Texas,C=US

Not Before

12/02/2016, 17:39

Not After

12/02/2041, 17:39

Subject

CN=SSL.com Root Certification Authority RSA,O=SSL Corporation,L=Houston,ST=Texas,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

38:65:5f:e1:cd:f2:75:52:e5:cc:92:5b:ba:03:74:d6
Certificate

Issuer

CN=SSL.com Code Signing Intermediate CA RSA R1,O=SSL Corp,L=Houston,ST=Texas,C=US

Not Before

05/07/2022, 20:47

Not After

04/07/2023, 20:47

Subject

CN=Lesley Vinicius Macedo,O=Lesley Vinicius Macedo,L=Rio Verde,ST=Goiás,C=BR

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

64:33:51:d3:c7:38:9f:08
Certificate

Issuer

CN=SSL.com Root Certification Authority RSA,O=SSL Corporation,L=Houston,ST=Texas,C=US

Not Before

24/06/2016, 20:44

Not After

24/06/2031, 20:44

Subject

CN=SSL.com Code Signing Intermediate CA RSA R1,O=SSL Corp,L=Houston,ST=Texas,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

1a:d6:08:a7:d6:34:b5:cd:de:97:cb:a3:cc:f0:d0:4b
Certificate

Issuer

CN=SSL.com Timestamping Issuing RSA CA R1,O=SSL Corp,L=Houston,ST=Texas,C=US

Not Before

09/12/2022, 18:30

Not After

06/12/2032, 18:30

Subject

CN=SSL.com Timestamping Unit 2022,O=SSL Corp,L=Houston,ST=Texas,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

e4:27:04:95:f6:8c:91:d6:d0:ec:7b:49:4e:a4:df:1c
Certificate

Issuer

CN=Certum Trusted Network CA,OU=Certum Certification Authority,O=Unizeto Technologies S.A.,C=PL

Not Before

11/09/2018, 09:26

Not After

11/09/2023, 09:26

Subject

CN=SSL.com Root Certification Authority RSA,O=SSL Corporation,L=Houston,ST=Texas,C=US

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

6d:52:18:70:87:e8:23:4d:85:60:00:d0:80:8f:93:56
Certificate

Issuer

CN=SSL.com Root Certification Authority RSA,O=SSL Corporation,L=Houston,ST=Texas,C=US

Not Before

13/11/2019, 18:50

Not After

12/11/2034, 18:50

Subject

CN=SSL.com Timestamping Issuing RSA CA R1,O=SSL Corp,L=Houston,ST=Texas,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

13:85:c1:0f:51:58:70:09:56:57:dd:23:e6:01:43:a4:4f:ac:dd:eb:19:fd:37:ea:af:b6:95:22:43:9b:0b:f4
Signer

Actual PE Digest

13:85:c1:0f:51:58:70:09:56:57:dd:23:e6:01:43:a4:4f:ac:dd:eb:19:fd:37:ea:af:b6:95:22:43:9b:0b:f4

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_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

kernel32

GetACP
GetExitCodeProcess
LocalFree
CloseHandle
SizeofResource
VirtualProtect
VirtualFree
GetFullPathNameW
ExitProcess
HeapAlloc
GetCPInfoExW
RtlUnwind
GetCPInfo
GetStdHandle
GetModuleHandleW
FreeLibrary
HeapDestroy
ReadFile
CreateProcessW
GetLastError
GetModuleFileNameW
SetLastError
FindResourceW
CreateThread
CompareStringW
LoadLibraryA
ResetEvent
GetVersion
RaiseException
FormatMessageW
SwitchToThread
GetExitCodeThread
GetCurrentThread
LoadLibraryExW
LockResource
GetCurrentThreadId
UnhandledExceptionFilter
VirtualQuery
VirtualQueryEx
Sleep
EnterCriticalSection
SetFilePointer
LoadResource
SuspendThread
GetTickCount
GetFileSize
GetStartupInfoW
GetFileAttributesW
InitializeCriticalSection
GetSystemWindowsDirectoryW
GetThreadPriority
SetThreadPriority
GetCurrentProcess
VirtualAlloc
GetSystemInfo
GetCommandLineW
LeaveCriticalSection
GetProcAddress
ResumeThread
GetVersionExW
VerifyVersionInfoW
HeapCreate
GetWindowsDirectoryW
VerSetConditionMask
GetDiskFreeSpaceW
FindFirstFileW
GetUserDefaultUILanguage
lstrlenW
QueryPerformanceCounter
SetEndOfFile
HeapFree
WideCharToMultiByte
FindClose
MultiByteToWideChar
LoadLibraryW
SetEvent
CreateFileW
GetLocaleInfoW
GetSystemDirectoryW
DeleteFileW
GetLocalTime
GetEnvironmentVariableW
WaitForSingleObject
WriteFile
ExitThread
DeleteCriticalSection
TlsGetValue
GetDateFormatW
SetErrorMode
IsValidLocale
TlsSetValue
CreateDirectoryW
GetSystemDefaultUILanguage
EnumCalendarInfoW
LocalAlloc
GetUserDefaultLangID
RemoveDirectoryW
CreateEventW
SetThreadLocale
GetThreadLocale

comctl32

InitCommonControls

version

GetFileVersionInfoSizeW
VerQueryValueW
GetFileVersionInfoW

user32

CreateWindowExW
TranslateMessage
CharLowerBuffW
CallWindowProcW
CharUpperW
PeekMessageW
GetSystemMetrics
SetWindowLongW
MessageBoxW
DestroyWindow
CharUpperBuffW
CharNextW
MsgWaitForMultipleObjects
LoadStringW
ExitWindowsEx
DispatchMessageW

oleaut32

SysAllocStringLen
SafeArrayPtrOfIndex
VariantCopy
SafeArrayGetLBound
SafeArrayGetUBound
VariantInit
VariantClear
SysFreeString
SysReAllocStringLen
VariantChangeType
SafeArrayCreate

netapi32

NetWkstaGetInfo
NetApiBufferFree

advapi32

ConvertStringSecurityDescriptorToSecurityDescriptorW
RegQueryValueExW
AdjustTokenPrivileges
GetTokenInformation
ConvertSidToStringSidW
LookupPrivilegeValueW
RegCloseKey
OpenProcessToken
RegOpenKeyExW

Exports

Exports

TMethodImplementationIntercept
__dbk_fcall_wrapper
dbkFCallWrapperAddr

Sections

.text
Size: 718KB - Virtual size: 718KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.itext
Size: 6KB - Virtual size: 5KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 14KB - Virtual size: 13KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.bss
Size: - Virtual size: 27KB

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

.didata
Size: 512B - Virtual size: 420B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.edata
Size: 512B - Virtual size: 154B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: - Virtual size: 24B

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 512B - Virtual size: 93B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 30KB - Virtual size: 29KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Password: 123

e569e6f445d32ba23766ad67d1e3787f

Code Sign

7b:2c:9b:d3:16:80:32:99Certificate

Key Usages

38:65:5f:e1:cd:f2:75:52:e5:cc:92:5b:ba:03:74:d6Certificate

Extended Key Usages

Key Usages

64:33:51:d3:c7:38:9f:08Certificate

Extended Key Usages

Key Usages

1a:d6:08:a7:d6:34:b5:cd:de:97:cb:a3:cc:f0:d0:4bCertificate

Extended Key Usages

Key Usages

e4:27:04:95:f6:8c:91:d6:d0:ec:7b:49:4e:a4:df:1cCertificate

Key Usages

6d:52:18:70:87:e8:23:4d:85:60:00:d0:80:8f:93:56Certificate

Extended Key Usages

Key Usages

13:85:c1:0f:51:58:70:09:56:57:dd:23:e6:01:43:a4:4f:ac:dd:eb:19:fd:37:ea:af:b6:95:22:43:9b:0b:f4Signer

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

comctl32

version

user32

oleaut32

netapi32

advapi32

Exports

Exports

Sections

.text Size: 718KB - Virtual size: 718KB

.itext Size: 6KB - Virtual size: 5KB

.data Size: 14KB - Virtual size: 13KB

.bss Size: - Virtual size: 27KB

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

.didata Size: 512B - Virtual size: 420B

.edata Size: 512B - Virtual size: 154B

.tls Size: - Virtual size: 24B

.rdata Size: 512B - Virtual size: 93B

.rsrc Size: 30KB - Virtual size: 29KB

7b:2c:9b:d3:16:80:32:99
Certificate

38:65:5f:e1:cd:f2:75:52:e5:cc:92:5b:ba:03:74:d6
Certificate

64:33:51:d3:c7:38:9f:08
Certificate

1a:d6:08:a7:d6:34:b5:cd:de:97:cb:a3:cc:f0:d0:4b
Certificate

e4:27:04:95:f6:8c:91:d6:d0:ec:7b:49:4e:a4:df:1c
Certificate

6d:52:18:70:87:e8:23:4d:85:60:00:d0:80:8f:93:56
Certificate

13:85:c1:0f:51:58:70:09:56:57:dd:23:e6:01:43:a4:4f:ac:dd:eb:19:fd:37:ea:af:b6:95:22:43:9b:0b:f4
Signer

.text
Size: 718KB - Virtual size: 718KB

.itext
Size: 6KB - Virtual size: 5KB

.data
Size: 14KB - Virtual size: 13KB

.bss
Size: - Virtual size: 27KB

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

.didata
Size: 512B - Virtual size: 420B

.edata
Size: 512B - Virtual size: 154B

.tls
Size: - Virtual size: 24B

.rdata
Size: 512B - Virtual size: 93B

.rsrc
Size: 30KB - Virtual size: 29KB