GRADIENT LOADER[.]zip

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General

Target

GRADIENT LOADER.zip
Size

57.4MB
MD5

f02ed71ab2c31d4e53327c626ec978b1
SHA1

6446c506c56deb6e4cc60ea21abb1cbf24648420
SHA256

8c030073c10ea9058edfb91eb8d8b60ed10a8844690a8321b8f65ab56951d268
SHA512

e62c14cf8cbeb0a364da28b430e261a0ff5841847f709be9e2600d2caee4c0ec1ad91ddc85e99769ab59f116b940c6bc00af3229bb146ca6c297d784b2acd6e0
SSDEEP

1572864:WBH3D5KU2J9pC2pZW3LX7wdu+avx9slHgfffuz:WBHduxZmX7sBlH4fe

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
static1/unpack001/1ST.exe	upx

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
static1/unpack002/out.upx	autoit_exe

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack002/out.upx

Files

GRADIENT LOADER.zip
.zip
1ST.exe
.exe windows:5 windows x86 arch:x86

Code Sign

69:98:6c:80:0a:7c:5b:8e:47:86:45:a0:3e:86:d5:40
Certificate

Issuer

CN=Sordum Software

Not Before

11-09-2021 21:00

Not After

31-07-2030 21:00

Subject

CN=Sordum Software

Extended Key Usages

ExtKeyUsageCodeSigning

1b:b5:8f:25:2a:df:23:00:49:28:c9:ae:3d:7e:ed:27
Certificate

Issuer

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

Not Before

31-05-2021 06:43

Not After

17-09-2029 06:43

Subject

CN=Certum Trusted Network CA 2,OU=Certum Certification Authority,O=Unizeto Technologies S.A.,C=PL

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

f1:64:25:8c:09:b6:e2:7b:e2:0e:32:60:8e:4b:f4:a8
Certificate

Issuer

CN=Certum Timestamping 2021 CA,O=Asseco Data Systems S.A.,C=PL

Not Before

19-05-2021 05:42

Not After

18-05-2032 05:42

Subject

CN=Certum Timestamp 2021,O=Asseco Data Systems S.A.,C=PL

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

e7:ff:69:c7:3b:35:ce:4b:91:26:d8:74:7c:68:a5:87
Certificate

Issuer

CN=Certum Trusted Network CA 2,OU=Certum Certification Authority,O=Unizeto Technologies S.A.,C=PL

Not Before

19-05-2021 05:32

Not After

18-05-2036 05:32

Subject

CN=Certum Timestamping 2021 CA,O=Asseco Data Systems S.A.,C=PL

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

13:f6:ef:3f:06:29:49:56:6c:21:59:e0:0c:ac:6f:83:24:95:fa:e4
Signer

Actual PE Digest

13:f6:ef:3f:06:29:49:56:6c:21:59:e0:0c:ac:6f:83:24:95:fa:e4

Digest Algorithm

sha1

PE Digest Matches

false

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE

Sections

UPX0
Size: - Virtual size: 492KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 262KB - Virtual size: 264KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 57KB - Virtual size: 60KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
out.upx
.exe windows:5 windows x86 arch:x86

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE

Sections

.text
Size: 514KB - Virtual size: 513KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 56KB - Virtual size: 55KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 26KB - Virtual size: 105KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 56KB - Virtual size: 56KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
1ST.ini
GRADIENTLOADER.exe
.exe windows:6 windows x64 arch:x64

456e8615ad4320c9f54e50319a19df9c

Code Sign

33:00:00:03:84:d9:68:7d:66:cc:75:4b:a1:00:00:00:00:03:84
Certificate

Issuer

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

Not Before

13-07-2023 23:45

Not After

15-09-2024 23:45

Subject

CN=Microsoft 3rd Party Application Component,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

7e:64:79:ac:32:e1:f6:f1:a6:d6:04:f4:1f:95:33:f9:fb:c3:15:6f:0d:48:0c:79:b8:13:f5:c9:cd:a1:5d:3f
Signer

Actual PE Digest

7e:64:79:ac:32:e1:f6:f1:a6:d6:04:f4:1f:95:33:f9:fb:c3:15:6f:0d:48:0c:79:b8:13:f5:c9:cd:a1:5d:3f

Digest Algorithm

sha256

PE Digest Matches

false

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
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_LARGE_ADDRESS_AWARE

Imports

user32

CreateWindowExW
PostMessageW
GetMessageW
MessageBoxW
MessageBoxA
SystemParametersInfoW
DestroyIcon
SetWindowLongPtrW
GetWindowLongPtrW
GetClientRect
InvalidateRect
ReleaseDC
GetDC
DrawTextW
GetDialogBaseUnits
EndDialog
DialogBoxIndirectParamW
MoveWindow
SendMessageW

comctl32

ord380

kernel32

GetACP
IsValidCodePage
GetStringTypeW
GetFileAttributesExW
SetEnvironmentVariableW
FlushFileBuffers
GetCurrentDirectoryW
GetOEMCP
GetCPInfo
GetModuleHandleW
MulDiv
GetLastError
FormatMessageW
GetModuleFileNameW
SetDllDirectoryW
CreateSymbolicLinkW
GetProcAddress
CreateDirectoryW
GetCommandLineW
GetEnvironmentVariableW
ExpandEnvironmentStringsW
GetEnvironmentStringsW
FindClose
FindFirstFileW
FindNextFileW
GetDriveTypeW
RemoveDirectoryW
GetTempPathW
CloseHandle
WaitForSingleObject
Sleep
GetCurrentProcess
GetExitCodeProcess
CreateProcessW
GetStartupInfoW
FreeLibrary
LoadLibraryExW
LocalFree
SetConsoleCtrlHandler
K32EnumProcessModules
K32GetModuleFileNameExW
CreateFileW
FindFirstFileExW
GetFinalPathNameByHandleW
MultiByteToWideChar
WideCharToMultiByte
FreeEnvironmentStringsW
GetProcessHeap
GetTimeZoneInformation
HeapSize
HeapReAlloc
WriteConsoleW
SetEndOfFile
DeleteFileW
IsProcessorFeaturePresent
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
RtlUnwindEx
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
EncodePointer
RaiseException
RtlPcToFileHeader
GetCommandLineA
GetFileInformationByHandle
GetFileType
PeekNamedPipe
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
ReadFile
GetFullPathNameW
SetStdHandle
GetStdHandle
WriteFile
ExitProcess
GetModuleHandleExW
HeapFree
GetConsoleMode
ReadConsoleW
SetFilePointerEx
GetConsoleOutputCP
GetFileSizeEx
HeapAlloc
FlsAlloc
FlsGetValue
FlsSetValue
FlsFree
CompareStringW
LCMapStringW

advapi32

OpenProcessToken
GetTokenInformation
ConvertStringSecurityDescriptorToSecurityDescriptorW
ConvertSidToStringSidW

gdi32

SelectObject
DeleteObject
CreateFontIndirectW

Sections

.text
Size: 165KB - Virtual size: 164KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 74KB - Virtual size: 73KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 28KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 9KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 66KB - Virtual size: 65KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
loader-o.pyc

Sharing

General

Malware Config

Signatures

Files

Code Sign

69:98:6c:80:0a:7c:5b:8e:47:86:45:a0:3e:86:d5:40Certificate

Extended Key Usages

1b:b5:8f:25:2a:df:23:00:49:28:c9:ae:3d:7e:ed:27Certificate

Key Usages

f1:64:25:8c:09:b6:e2:7b:e2:0e:32:60:8e:4b:f4:a8Certificate

Extended Key Usages

Key Usages

e7:ff:69:c7:3b:35:ce:4b:91:26:d8:74:7c:68:a5:87Certificate

Extended Key Usages

Key Usages

13:f6:ef:3f:06:29:49:56:6c:21:59:e0:0c:ac:6f:83:24:95:fa:e4Signer

Headers

DLL Characteristics

File Characteristics

Sections

UPX0 Size: - Virtual size: 492KB

UPX1 Size: 262KB - Virtual size: 264KB

.rsrc Size: 57KB - Virtual size: 60KB

Headers

DLL Characteristics

File Characteristics

Sections

.text Size: 514KB - Virtual size: 513KB

.rdata Size: 56KB - Virtual size: 55KB

.data Size: 26KB - Virtual size: 105KB

.rsrc Size: 56KB - Virtual size: 56KB

456e8615ad4320c9f54e50319a19df9c

Code Sign

33:00:00:03:84:d9:68:7d:66:cc:75:4b:a1:00:00:00:00:03:84Certificate

Extended Key Usages

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

Key Usages

7e:64:79:ac:32:e1:f6:f1:a6:d6:04:f4:1f:95:33:f9:fb:c3:15:6f:0d:48:0c:79:b8:13:f5:c9:cd:a1:5d:3fSigner

Headers

DLL Characteristics

File Characteristics

Imports

user32

comctl32

kernel32

advapi32

gdi32

Sections

.text Size: 165KB - Virtual size: 164KB

.rdata Size: 74KB - Virtual size: 73KB

.data Size: 3KB - Virtual size: 28KB

.pdata Size: 9KB - Virtual size: 8KB

.rsrc Size: 66KB - Virtual size: 65KB

.reloc Size: 2KB - Virtual size: 1KB

69:98:6c:80:0a:7c:5b:8e:47:86:45:a0:3e:86:d5:40
Certificate

1b:b5:8f:25:2a:df:23:00:49:28:c9:ae:3d:7e:ed:27
Certificate

f1:64:25:8c:09:b6:e2:7b:e2:0e:32:60:8e:4b:f4:a8
Certificate

e7:ff:69:c7:3b:35:ce:4b:91:26:d8:74:7c:68:a5:87
Certificate

13:f6:ef:3f:06:29:49:56:6c:21:59:e0:0c:ac:6f:83:24:95:fa:e4
Signer

UPX0
Size: - Virtual size: 492KB

UPX1
Size: 262KB - Virtual size: 264KB

.rsrc
Size: 57KB - Virtual size: 60KB

.text
Size: 514KB - Virtual size: 513KB

.rdata
Size: 56KB - Virtual size: 55KB

.data
Size: 26KB - Virtual size: 105KB

.rsrc
Size: 56KB - Virtual size: 56KB

33:00:00:03:84:d9:68:7d:66:cc:75:4b:a1:00:00:00:00:03:84
Certificate

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

7e:64:79:ac:32:e1:f6:f1:a6:d6:04:f4:1f:95:33:f9:fb:c3:15:6f:0d:48:0c:79:b8:13:f5:c9:cd:a1:5d:3f
Signer

.text
Size: 165KB - Virtual size: 164KB

.rdata
Size: 74KB - Virtual size: 73KB

.data
Size: 3KB - Virtual size: 28KB

.pdata
Size: 9KB - Virtual size: 8KB

.rsrc
Size: 66KB - Virtual size: 65KB

.reloc
Size: 2KB - Virtual size: 1KB