Fileless[.]exe

Resubmissions

11/04/2025, 09:39

250411-lm5gqsvxhy 10

25/04/2023, 05:52

230425-gk5bqsae6v 1

Sharing

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General

Target

Fileless.exe
Size

126KB
MD5

d042ef492146d69bb42671f4b38ee263
SHA1

97c1c81c766b85ca3dfacf3e651f925ca7cd7cc1
SHA256

9d42236c82c1cdfd48d3b3f24562cc9f6c79c07f31efd5a4bcd8561aa9d097b2
SHA512

52cf4283c7890b5436b84312ec96df66fc3d4141d6788c5cfbf37e02e2d76772b87b68d36fd6c9455b156ab4405387ac8fdba047bec729455a01ca876083780f
SSDEEP

1536:l5e9vmmDlSSle7ZJpMhOP5dIBT6yQnyn42VGjPZ:z6vmmDlBetJp9P5dIBTcEc

Score

1^/10

Malware Config

Signatures

Files

Fileless.exe
.exe windows x64

fdad22b3b0b5599be58fac0d71fba3cd

Code Sign

33:00:00:00:90:3e:83:56:9d:f3:ba:ae:e8:00:00:00:00:00:90
Certificate

Issuer

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

Not Before

07/10/2015, 18:14

Not After

07/01/2017, 18:14

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

33:00:00:01:0a:2c:79:ae:d7:79:7b:a6:ac:00:01:00:00:01:0a
Certificate

Issuer

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

Not Before

04/06/2015, 17:42

Not After

04/09/2016, 17:42

Subject

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

Extended Key Usages

ExtKeyUsageCodeSigning

61:33:26:1a:00:00:00:00:00:31
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

31/08/2010, 22:19

Not After

31/08/2020, 22:29

Subject

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

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

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:ef:d8:87:2e:35:a3:82:8a:2f:00:00:00:00:00:ef
Certificate

Issuer

CN=Microsoft Code Signing PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

28/10/2015, 20:31

Not After

28/01/2017, 20:31

Subject

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

Extended Key Usages

ExtKeyUsageCodeSigning

61:0c:52:4c:00:00:00:00:00:03
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

06/07/2010, 20:40

Not After

06/07/2025, 20:50

Subject

CN=Microsoft Code Signing PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

a5:e6:5b:14:62:6e:ea:e8:66:f5:95:5a:5f:0d:49:11:62:24:ec:35:14:ea:01:f1:14:3e:9b:08:e0:1d:19:f0
Signer

Actual PE Digest

a5:e6:5b:14:62:6e:ea:e8:66:f5:95:5a:5f:0d:49:11:62:24:ec:35:14:ea:01:f1:14:3e:9b:08:e0:1d:19:f0

Digest Algorithm

sha256

PE Digest Matches

false

Signature Validations

Trusted

false

Verification

Signing Certificate

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

25/04/2023, 04:47
Valid: false

d0:dd:f6:35:82:d4:1d:f7:82:d6:76:cd:fc:ae:1d:e4:2e:75:b1:28
Signer

Actual PE Digest

d0:dd:f6:35:82:d4:1d:f7:82:d6:76:cd:fc:ae:1d:e4:2e:75:b1:28

Digest Algorithm

sha1

PE Digest Matches

false

Signature Validations

Trusted

false

Verification

Signing Certificate

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

29/03/2016, 16:11
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

kernel32

ReadProcessMemory
GetModuleHandleA
GetProcAddress
LoadLibraryA
LocalAlloc
VirtualProtect
MultiByteToWideChar
WideCharToMultiByte
K32GetModuleInformation
VirtualQuery
HeapFree
GetModuleHandleW
VirtualAlloc
CreateProcessA
ExitThread
TerminateProcess
GetCurrentProcess
GetProcessHeap
HeapAlloc
LocalFree
GetLastError
GetStartupInfoW
InitializeSListHead
GetSystemTimeAsFileTime
GetCurrentProcessId
QueryPerformanceCounter
IsProcessorFeaturePresent
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
RaiseException
IsDebuggerPresent
GetCurrentThreadId
FreeLibrary

user32

EnumThreadWindows

advapi32

CryptHashData
CryptCreateHash
CryptDecrypt
CryptDestroyKey
CryptDeriveKey
CryptReleaseContext
CryptAcquireContextW
CryptDestroyHash

shell32

CommandLineToArgvW

msvcp140d

?_Xlength_error@std@@YAXPEBD@Z
??1_Lockit@std@@QEAA@XZ
??0_Lockit@std@@QEAA@H@Z

winhttp

WinHttpOpen
WinHttpCloseHandle
WinHttpConnect
WinHttpReadData
WinHttpQueryDataAvailable
WinHttpOpenRequest
WinHttpSendRequest
WinHttpReceiveResponse

vcruntime140d

__std_type_info_destroy_list
__current_exception
__C_specific_handler
__vcrt_GetModuleFileNameW
__vcrt_GetModuleHandleW
__vcrt_LoadLibraryExW
__C_specific_handler_noexcept
_CxxThrowException
__std_exception_destroy
__std_exception_copy
memset
memmove
__current_exception_context
memcpy

vcruntime140_1d

__CxxFrameHandler4

ucrtbased

_configure_narrow_argv
_initialize_narrow_environment
_get_initial_narrow_environment
_initterm
_initterm_e
calloc
_set_fmode
__p___argc
__p___argv
_cexit
_c_exit
_register_thread_local_exe_atexit_callback
_configthreadlocale
_set_new_mode
__p__commode
__setusermatherr
exit
strcat_s
__stdio_common_vsprintf_s
_seh_filter_dll
_initialize_onexit_table
_register_onexit_function
_execute_onexit_table
_crt_atexit
_crt_at_quick_exit
terminate
_wmakepath_s
_wsplitpath_s
wcscpy_s
strlen
_set_app_type
_seh_filter_exe
_CrtDbgReportW
_callnewh
_CrtDbgReport
__stdio_common_vfprintf
__acrt_iob_func
mbstowcs
_stricmp
_free_dbg
wcslen
_invalid_parameter
atoi
strcpy_s
malloc
_exit
strcmp

Sections

.textbss
Size: - Virtual size: 64KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.text
Size: 64KB - Virtual size: 63KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 23KB - Virtual size: 22KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 1KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 10KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.idata
Size: 7KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.msvcjmc
Size: 1024B - Virtual size: 514B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.00cfg
Size: 512B - Virtual size: 373B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 1024B - Virtual size: 869B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Resubmissions

Sharing

General

Malware Config

Signatures

Files

fdad22b3b0b5599be58fac0d71fba3cd

Code Sign

33:00:00:00:90:3e:83:56:9d:f3:ba:ae:e8:00:00:00:00:00:90Certificate

Extended Key Usages

33:00:00:01:0a:2c:79:ae:d7:79:7b:a6:ac:00:01:00:00:01:0aCertificate

Extended Key Usages

61:33:26:1a:00:00:00:00:00:31Certificate

Key Usages

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

Extended Key Usages

Key Usages

33:00:00:00:ef:d8:87:2e:35:a3:82:8a:2f:00:00:00:00:00:efCertificate

Extended Key Usages

61:0c:52:4c:00:00:00:00:00:03Certificate

Key Usages

a5:e6:5b:14:62:6e:ea:e8:66:f5:95:5a:5f:0d:49:11:62:24:ec:35:14:ea:01:f1:14:3e:9b:08:e0:1d:19:f0Signer

Signature Validations

Verification

25/04/2023, 04:47 Valid: false

d0:dd:f6:35:82:d4:1d:f7:82:d6:76:cd:fc:ae:1d:e4:2e:75:b1:28Signer

Signature Validations

Verification

29/03/2016, 16:11 Valid: false

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

advapi32

shell32

msvcp140d

winhttp

vcruntime140d

vcruntime140_1d

ucrtbased

Sections

.textbss Size: - Virtual size: 64KB

.text Size: 64KB - Virtual size: 63KB

.rdata Size: 23KB - Virtual size: 22KB

.data Size: 1KB - Virtual size: 4KB

.pdata Size: 10KB - Virtual size: 10KB

.idata Size: 7KB - Virtual size: 6KB

.msvcjmc Size: 1024B - Virtual size: 514B

.00cfg Size: 512B - Virtual size: 373B

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

.reloc Size: 1024B - Virtual size: 869B

33:00:00:00:90:3e:83:56:9d:f3:ba:ae:e8:00:00:00:00:00:90
Certificate

33:00:00:01:0a:2c:79:ae:d7:79:7b:a6:ac:00:01:00:00:01:0a
Certificate

61:33:26:1a:00:00:00:00:00:31
Certificate

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

33:00:00:00:ef:d8:87:2e:35:a3:82:8a:2f:00:00:00:00:00:ef
Certificate

61:0c:52:4c:00:00:00:00:00:03
Certificate

a5:e6:5b:14:62:6e:ea:e8:66:f5:95:5a:5f:0d:49:11:62:24:ec:35:14:ea:01:f1:14:3e:9b:08:e0:1d:19:f0
Signer

25/04/2023, 04:47
Valid: false

d0:dd:f6:35:82:d4:1d:f7:82:d6:76:cd:fc:ae:1d:e4:2e:75:b1:28
Signer

29/03/2016, 16:11
Valid: false

.textbss
Size: - Virtual size: 64KB

.text
Size: 64KB - Virtual size: 63KB

.rdata
Size: 23KB - Virtual size: 22KB

.data
Size: 1KB - Virtual size: 4KB

.pdata
Size: 10KB - Virtual size: 10KB

.idata
Size: 7KB - Virtual size: 6KB

.msvcjmc
Size: 1024B - Virtual size: 514B

.00cfg
Size: 512B - Virtual size: 373B

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

.reloc
Size: 1024B - Virtual size: 869B