batch_backdoor[.]7z

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General

Target

batch_backdoor.7z
Size

1.9MB
MD5

73c3ea3837ca0cb8d8bf427a4525cc4d
SHA1

2a5744d12aef81be6f85b1914fc55b716f42b8bf
SHA256

093a379463e9114475bb87d18d99961bf2e8f03cb58bde7fac724552ac445032
SHA512

28a61f8994155521c2ee3ddc76860134d538f0ac5fee5434c97c58d7b4544e39ac42d9d2e875bb8dea9d8a076f3c0fb2cebf9977059caf5e8827b153a5ee7987
SSDEEP

49152:lr2NGlm9Mls4hqTSd3qAOFMx9CaIQo3QxPR8bPAepRahwH:lr2N8m9O0GKa9m+RqPAGXH

Score

1^/10

Malware Config

Signatures

Files

batch_backdoor.7z
.7z
batchdoor.bat
.bat .vbs
curl.exe
.exe windows:6 windows x64 arch:x64

865c88fda2ebb62909114c8959b4cda7

Code Sign

0f:07:dd:d7:18:7f:eb:e5:92:aa:9d:cb:35:81:8f:8a:94:06:ac:9d
Certificate

Issuer

CN=curl-for-win Root CA 2021

Not Before

17-01-2021 22:40

Not After

17-01-2024 22:40

Subject

CN=curl-for-win Code Signing Authority

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

05:08:26:c5:81:9f:76:fc:32:01:f2:dc:10:c9:a7:1e:73:c5:71:25
Certificate

Issuer

CN=curl-for-win Root CA 2021

Not Before

17-01-2021 22:40

Not After

17-01-2026 22:40

Subject

CN=curl-for-win Root CA 2021

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

c3:f2:19:22:7e:0d:b5:40:b4:a8:2b:55:00:99:ae:8c:ed:aa:dd:d1:9a:7a:34:ab:9c:54:9b:b5:f5:76:bc:d4:64:d3:6e:69:02:65:7d:19:90:e5:4c:4a:94:6a:05:b6:4c:b0:24:1b:f5:64:d7:90:99:13:ea:2c:f7:a1:80:05
Signer

Actual PE Digest

c3:f2:19:22:7e:0d:b5:40:b4:a8:2b:55:00:99:ae:8c:ed:aa:dd:d1:9a:7a:34:ab:9c:54:9b:b5:f5:76:bc:d4:64:d3:6e:69:02:65:7d:19:90:e5:4c:4a:94:6a:05:b6:4c:b0:24:1b:f5:64:d7:90:99:13:ea:2c:f7:a1:80:05

Digest Algorithm

sha512

PE Digest Matches

true

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

CryptAcquireContextA
CryptCreateHash
CryptDestroyHash
CryptGetHashParam
CryptHashData
CryptReleaseContext
DeregisterEventSource
RegisterEventSourceW
ReportEventW

bcrypt

BCryptGenRandom

crypt32

CertAddCertificateContextToStore
CertCloseStore
CertCreateCertificateChainEngine
CertEnumCertificatesInStore
CertFindCertificateInStore
CertFindExtension
CertFreeCertificateChain
CertFreeCertificateChainEngine
CertFreeCertificateContext
CertGetCertificateChain
CertGetEnhancedKeyUsage
CertGetIntendedKeyUsage
CertGetNameStringA
CertOpenStore
CertOpenSystemStoreA
CryptDecodeObjectEx
CryptQueryObject
CryptStringToBinaryA
PFXImportCertStore

kernel32

AcquireSRWLockExclusive
AcquireSRWLockShared
CancelIo
CloseHandle
CompareFileTime
ConvertFiberToThread
ConvertThreadToFiberEx
CreateEventA
CreateFiberEx
CreateFileA
CreateFileMappingA
CreateToolhelp32Snapshot
DeleteCriticalSection
DeleteFiber
EnterCriticalSection
FindClose
FindFirstFileW
FindFirstVolumeW
FindNextFileW
FindNextVolumeW
FindVolumeClose
FormatMessageW
FreeLibrary
GetACP
GetConsoleMode
GetConsoleScreenBufferInfo
GetCurrentProcessId
GetCurrentThreadId
GetDiskFreeSpaceExW
GetEnvironmentVariableA
GetEnvironmentVariableW
GetFileInformationByHandle
GetFileSizeEx
GetFileTime
GetFileType
GetLastError
GetModuleFileNameA
GetModuleHandleA
GetModuleHandleW
GetOverlappedResult
GetProcAddress
GetStdHandle
GetSystemDirectoryA
GetSystemInfo
GetSystemTime
GetSystemTimeAsFileTime
GetTickCount
GetTickCount64
GetTimeZoneInformation
GetVersion
GetVolumeInformationW
InitializeCriticalSection
InitializeCriticalSectionEx
InitializeSRWLock
LeaveCriticalSection
LoadLibraryA
MapViewOfFile
Module32First
Module32Next
MoveFileExA
MultiByteToWideChar
PeekNamedPipe
QueryPerformanceCounter
QueryPerformanceFrequency
ReadConsoleA
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
ReleaseSRWLockShared
RtlVirtualUnwind
SearchPathA
SetConsoleCtrlHandler
SetConsoleMode
SetEndOfFile
SetFilePointer
SetFileTime
SetHandleInformation
SetLastError
SetUnhandledExceptionFilter
Sleep
SleepEx
SwitchToFiber
SystemTimeToFileTime
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnmapViewOfFile
VerSetConditionMask
VerifyVersionInfoW
VirtualAlloc
VirtualFree
VirtualLock
VirtualProtect
VirtualQuery
WaitForMultipleObjects
WaitForSingleObjectEx
WaitNamedPipeA
WideCharToMultiByte
WriteConsoleW
WriteFile

normaliz

IdnToAscii
IdnToUnicode

api-ms-win-crt-conio-l1-1-0

_getch

api-ms-win-crt-convert-l1-1-0

atoi
strtod
strtol
strtoll
strtoul
wcstombs

api-ms-win-crt-environment-l1-1-0

__p__environ
__p__wenviron
getenv

api-ms-win-crt-filesystem-l1-1-0

_access
_fstat64
_stat64
_unlink
_mkdir

api-ms-win-crt-heap-l1-1-0

_set_new_mode
calloc
free
malloc
realloc

api-ms-win-crt-locale-l1-1-0

setlocale

api-ms-win-crt-math-l1-1-0

__setusermatherr
_fdopen

api-ms-win-crt-private-l1-1-0

__C_specific_handler
memchr
memcmp
memcpy
memmove
strchr
strrchr
strstr
wcsstr

api-ms-win-crt-runtime-l1-1-0

_set_app_type
__p___argc
__p___argv
__p___wargv
__sys_errlist
__sys_nerr
_beginthreadex
_cexit
_configure_narrow_argv
_configure_wide_argv
_crt_at_quick_exit
_crt_atexit
_errno
_exit
_initialize_narrow_environment
_initialize_wide_environment
_initterm
_set_errno
_set_invalid_parameter_handler
abort
exit
raise
signal
strerror

api-ms-win-crt-stdio-l1-1-0

__acrt_iob_func
__p__commode
__p__fmode
__stdio_common_vfprintf
__stdio_common_vfwprintf
__stdio_common_vsprintf
__stdio_common_vsscanf
__stdio_common_vswprintf
_fileno
_fseeki64
_get_osfhandle
_lseeki64
_telli64
_wfopen
_write
fclose
feof
ferror
fflush
fgets
fopen
fputc
fputs
fread
freopen
fseek
ftell
fwrite
getc
putchar
puts
rewind
setvbuf
_write
_setmode
_setmode
_read
_open
_isatty
_fileno
_close

api-ms-win-crt-string-l1-1-0

isspace
memset
strcat
strcmp
strcpy
strcspn
strlen
strncmp
strncpy
strpbrk
strspn
strtok
tolower
wcscpy
wcslen
_stricmp
_strdup
_strdup

api-ms-win-crt-time-l1-1-0

__daylight
__timezone
__tzname
_difftime64
_gmtime64
_localtime64
_time64
_tzset
strftime

api-ms-win-crt-utility-l1-1-0

_byteswap_uint64
qsort

user32

FindWindowA
GetProcessWindowStation
GetUserObjectInformationW
MessageBoxW
SendMessageA

wldap32

ber_free
ldap_bind_s
ldap_err2string
ldap_first_attribute
ldap_first_entry
ldap_get_dn
ldap_get_values_len
ldap_init
ldap_memfree
ldap_msgfree
ldap_next_attribute
ldap_next_entry
ldap_search_s
ldap_set_option
ldap_simple_bind_s
ldap_sslinit
ldap_unbind_s
ldap_value_free_len

ws2_32

WSACleanup
WSACloseEvent
WSACreateEvent
WSAEnumNetworkEvents
WSAEventSelect
WSAGetLastError
WSAIoctl
WSAResetEvent
WSASetEvent
WSASetLastError
WSAStartup
WSAWaitForMultipleEvents
__WSAFDIsSet
accept
bind
closesocket
connect
gethostbyaddr
gethostbyname
gethostname
getpeername
getservbyname
getservbyport
getsockname
getsockopt
htonl
htons
inet_addr
inet_ntoa
ioctlsocket
listen
ntohs
recv
recvfrom
select
send
sendto
setsockopt
shutdown
socket

Sections

.text
Size: 4.5MB - Virtual size: 4.5MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 1.2MB - Virtual size: 1.2MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 35KB - Virtual size: 48KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 102KB - Virtual size: 102KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 16B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 43KB - Virtual size: 43KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

865c88fda2ebb62909114c8959b4cda7

Code Sign

0f:07:dd:d7:18:7f:eb:e5:92:aa:9d:cb:35:81:8f:8a:94:06:ac:9dCertificate

Extended Key Usages

Key Usages

05:08:26:c5:81:9f:76:fc:32:01:f2:dc:10:c9:a7:1e:73:c5:71:25Certificate

Key Usages

c3:f2:19:22:7e:0d:b5:40:b4:a8:2b:55:00:99:ae:8c:ed:aa:dd:d1:9a:7a:34:ab:9c:54:9b:b5:f5:76:bc:d4:64:d3:6e:69:02:65:7d:19:90:e5:4c:4a:94:6a:05:b6:4c:b0:24:1b:f5:64:d7:90:99:13:ea:2c:f7:a1:80:05Signer

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

bcrypt

crypt32

kernel32

normaliz

api-ms-win-crt-conio-l1-1-0

api-ms-win-crt-convert-l1-1-0

api-ms-win-crt-environment-l1-1-0

api-ms-win-crt-filesystem-l1-1-0

api-ms-win-crt-heap-l1-1-0

api-ms-win-crt-locale-l1-1-0

api-ms-win-crt-math-l1-1-0

api-ms-win-crt-private-l1-1-0

api-ms-win-crt-runtime-l1-1-0

api-ms-win-crt-stdio-l1-1-0

api-ms-win-crt-string-l1-1-0

api-ms-win-crt-time-l1-1-0

api-ms-win-crt-utility-l1-1-0

user32

wldap32

ws2_32

Sections

.text Size: 4.5MB - Virtual size: 4.5MB

.rdata Size: 1.2MB - Virtual size: 1.2MB

.data Size: 35KB - Virtual size: 48KB

.pdata Size: 102KB - Virtual size: 102KB

.tls Size: 512B - Virtual size: 16B

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

.reloc Size: 43KB - Virtual size: 43KB

0f:07:dd:d7:18:7f:eb:e5:92:aa:9d:cb:35:81:8f:8a:94:06:ac:9d
Certificate

05:08:26:c5:81:9f:76:fc:32:01:f2:dc:10:c9:a7:1e:73:c5:71:25
Certificate

c3:f2:19:22:7e:0d:b5:40:b4:a8:2b:55:00:99:ae:8c:ed:aa:dd:d1:9a:7a:34:ab:9c:54:9b:b5:f5:76:bc:d4:64:d3:6e:69:02:65:7d:19:90:e5:4c:4a:94:6a:05:b6:4c:b0:24:1b:f5:64:d7:90:99:13:ea:2c:f7:a1:80:05
Signer

.text
Size: 4.5MB - Virtual size: 4.5MB

.rdata
Size: 1.2MB - Virtual size: 1.2MB

.data
Size: 35KB - Virtual size: 48KB

.pdata
Size: 102KB - Virtual size: 102KB

.tls
Size: 512B - Virtual size: 16B

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

.reloc
Size: 43KB - Virtual size: 43KB