fjava[.]exe | Triage

Resubmissions

07/02/2023, 09:03

230207-kz22psdh21 1

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General

Target

fjava.exe
Size

226KB
MD5

08f6725b785f61b087fa7c4c67bf62f7
SHA1

5d91e864c7ccde3713b5a8b97770153a640f8b56
SHA256

2fb727e397464ec8f029861f854e11b9f7b11cae7efb3e551df346c03a585ec0
SHA512

c97ae79b27168d8d758d0bb2b5fdfc6b58a408f71b8004eafedbe2eb05c5c648e1d96bd8f71583e4a3ceb2ab07a627f17f88766dea851b07d77fd8b41be37e46
SSDEEP

6144:zlQNuAYVWMTlthteXYIGdORMFXTBnfvsk:z+NuTVFtR1XTlvsk

Score

1^/10

Malware Config

Signatures

Files

fjava.exe
.exe windows x64

308cc9ca51b30c995f1eb7b9d08ee03a

Code Sign

12:f0:27:7e:0f:23:3b:39:f9:41:9b:06:e8:cd:e3:52
Certificate

Issuer

CN=Symantec Class 3 SHA256 Code Signing CA,OU=Symantec Trust Network,O=Symantec Corporation,C=US

Not Before

14/04/2015, 00:00

Not After

13/04/2018, 23:59

Subject

CN=Oracle America\, Inc.,OU=Code Signing Bureau,O=Oracle America\, Inc.,L=Redwood Shores,ST=California,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

3d:78:d7:f9:76:49:60:b2:61:7d:f4:f0:1e:ca:86:2a
Certificate

Issuer

CN=VeriSign Class 3 Public Primary Certification Authority - G5,OU=VeriSign Trust Network+OU=(c) 2006 VeriSign\, Inc. - For authorized use only,O=VeriSign\, Inc.,C=US

Not Before

10/12/2013, 00:00

Not After

09/12/2023, 23:59

Subject

CN=Symantec Class 3 SHA256 Code Signing CA,OU=Symantec Trust Network,O=Symantec Corporation,C=US

Extended Key Usages

ExtKeyUsageClientAuth
ExtKeyUsageCodeSigning

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

7b:05:b1:d4:49:68:51:44:f7:c9:89:d2:9c:19:9d:12
Certificate

Issuer

CN=VeriSign Universal Root Certification Authority,OU=VeriSign Trust Network+OU=(c) 2008 VeriSign\, Inc. - For authorized use only,O=VeriSign\, Inc.,C=US

Not Before

12/01/2016, 00:00

Not After

11/01/2031, 23:59

Subject

CN=Symantec SHA256 TimeStamping CA,OU=Symantec Trust Network,O=Symantec Corporation,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

54:58:f2:aa:d7:41:d6:44:bc:84:a9:7b:a0:96:52:e6
Certificate

Issuer

CN=Symantec SHA256 TimeStamping CA,OU=Symantec Trust Network,O=Symantec Corporation,C=US

Not Before

02/01/2017, 00:00

Not After

01/04/2028, 23:59

Subject

CN=Symantec SHA256 TimeStamping Signer - G2,OU=Symantec Trust Network,O=Symantec Corporation,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

31:aa:9a:90:5f:47:32:af:73:18:4d:08:95:b8:bd:ae:ab:dc:5f:b6
Signer

Actual PE Digest

31:aa:9a:90:5f:47:32:af:73:18:4d:08:95:b8:bd:ae:ab:dc:5f:b6

Digest Algorithm

sha1

PE Digest Matches

true

Signature Validations

Trusted

false

Verification

Signing Certificate

CN=Oracle America\, Inc.,OU=Code Signing Bureau,O=Oracle America\, Inc.,L=Redwood Shores,ST=California,C=US

27/03/2018, 01:53
Valid: false

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

Imports

advapi32

RegEnumKeyExA
RegOpenKeyExA
RegGetValueA
RegCloseKey

user32

MessageBoxA
CharNextExA

comctl32

InitCommonControlsEx

version

GetFileVersionInfoSizeA
GetFileVersionInfoA
VerQueryValueA

kernel32

SetEndOfFile
GetTimeZoneInformation
CreateFileW
GetCurrentDirectoryW
GetFullPathNameW
GetCommandLineA
CloseHandle
GetLastError
QueryPerformanceCounter
QueryPerformanceFrequency
WaitForSingleObject
GetExitCodeThread
GetModuleFileNameA
GetModuleHandleA
GetModuleHandleExA
GetProcAddress
LoadLibraryA
FindClose
FindFirstFileA
FindNextFileA
EncodePointer
DecodePointer
ExitProcess
GetModuleHandleExW
AreFileApisANSI
MultiByteToWideChar
WideCharToMultiByte
EnterCriticalSection
LeaveCriticalSection
HeapFree
HeapAlloc
HeapReAlloc
IsDebuggerPresent
IsProcessorFeaturePresent
GetCurrentProcessId
SetFilePointerEx
CreateThread
GetCurrentThreadId
ExitThread
LoadLibraryExW
RtlUnwindEx
DeleteCriticalSection
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
SetLastError
InitializeCriticalSectionAndSpinCount
Sleep
GetCurrentProcess
TerminateProcess
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetStartupInfoW
GetModuleHandleW
GetStdHandle
WriteFile
GetModuleFileNameW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
GetProcessHeap
GetFileType
GetSystemTimeAsFileTime
GetEnvironmentStringsW
FreeEnvironmentStringsW
FlushFileBuffers
GetConsoleCP
GetConsoleMode
SetStdHandle
ReadFile
ReadConsoleW
FindFirstFileExW
GetDriveTypeW
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
SetEnvironmentVariableA
SetEnvironmentVariableW
GetFileAttributesExW
OutputDebugStringW
HeapSize
CompareStringW
LCMapStringW
GetStringTypeW
WriteConsoleW
FileTimeToLocalFileTime
GetFileInformationByHandle
PeekNamedPipe

Sections

.text
Size: 122KB - Virtual size: 122KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 50KB - Virtual size: 49KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 6KB - Virtual size: 16KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 33KB - Virtual size: 32KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Resubmissions

Sharing

General

Malware Config

Signatures

Files

308cc9ca51b30c995f1eb7b9d08ee03a

Code Sign

12:f0:27:7e:0f:23:3b:39:f9:41:9b:06:e8:cd:e3:52Certificate

Extended Key Usages

Key Usages

3d:78:d7:f9:76:49:60:b2:61:7d:f4:f0:1e:ca:86:2aCertificate

Extended Key Usages

Key Usages

7b:05:b1:d4:49:68:51:44:f7:c9:89:d2:9c:19:9d:12Certificate

Extended Key Usages

Key Usages

54:58:f2:aa:d7:41:d6:44:bc:84:a9:7b:a0:96:52:e6Certificate

Extended Key Usages

Key Usages

31:aa:9a:90:5f:47:32:af:73:18:4d:08:95:b8:bd:ae:ab:dc:5f:b6Signer

Signature Validations

Verification

27/03/2018, 01:53 Valid: false

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

user32

comctl32

version

kernel32

Sections

.text Size: 122KB - Virtual size: 122KB

.rdata Size: 50KB - Virtual size: 49KB

.data Size: 6KB - Virtual size: 16KB

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

.rsrc Size: 33KB - Virtual size: 32KB

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

12:f0:27:7e:0f:23:3b:39:f9:41:9b:06:e8:cd:e3:52
Certificate

3d:78:d7:f9:76:49:60:b2:61:7d:f4:f0:1e:ca:86:2a
Certificate

7b:05:b1:d4:49:68:51:44:f7:c9:89:d2:9c:19:9d:12
Certificate

54:58:f2:aa:d7:41:d6:44:bc:84:a9:7b:a0:96:52:e6
Certificate

31:aa:9a:90:5f:47:32:af:73:18:4d:08:95:b8:bd:ae:ab:dc:5f:b6
Signer

27/03/2018, 01:53
Valid: false

.text
Size: 122KB - Virtual size: 122KB

.rdata
Size: 50KB - Virtual size: 49KB

.data
Size: 6KB - Virtual size: 16KB

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

.rsrc
Size: 33KB - Virtual size: 32KB

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