dropper[.]exe | Triage

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General

Target

dropper.exe
Size

364KB
MD5

9342aa581e68c9fc6269253ddfbb9897
SHA1

8d715031ae6996ab0f1cdc34b8a32a2ea8120344
SHA256

7360c13fa63cf6e58fa9ad8667e8f9d5f775b828a211c095e2eedb22fcaa5c88
SHA512

00f2f3d6da82d3dde6ae789be41c43eb6e0f5d0edba5152bc69788add562c20d8ac6e387cc1145fc2d48d605a36708d71b4bfb3aeca1c3c2c5c7f834c0736cc9
SSDEEP

6144:fz0KLrF820Gnw7TTRZtw11OgNTck41t5prt2oJmD2J4:rGrGniTRZtwPOglcxtXBV

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
dropper.exe

Files

dropper.exe
.exe windows:6 windows x64 arch:x64

6b2b75ebd2f5ed8cda6c3902a207f46f

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

PDB Paths

C:\Users\catwickuh\source\repos\dropper\x64\Release\dropper.pdb

Imports

kernel32

VerifyVersionInfoA
QueryPerformanceCounter
GetTickCount
MoveFileExA
WaitForSingleObjectEx
MultiByteToWideChar
GetEnvironmentVariableA
GetStdHandle
GetFileType
ReadFile
PeekNamedPipe
WaitForMultipleObjects
CreateFileA
GetFileSizeEx
WideCharToMultiByte
GetSystemDirectoryA
FreeLibrary
VerSetConditionMask
SleepEx
LeaveCriticalSection
EnterCriticalSection
FormatMessageA
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
GetModuleHandleW
GetModuleHandleA
GetCurrentProcess
DeleteCriticalSection
InitializeCriticalSectionEx
GetLastError
GetProcAddress
LoadLibraryA
CloseHandle
SetLastError
Sleep
OutputDebugStringW
InitializeSListHead
GetSystemTimeAsFileTime
GetCurrentThreadId
GetCurrentProcessId
IsDebuggerPresent

msvcp140

?_Xlength_error@std@@YAXPEBD@Z

normaliz

IdnToAscii

wldap32

ord79
ord35
ord33
ord32
ord27
ord26
ord200
ord22
ord41
ord50
ord45
ord60
ord211
ord46
ord143
ord301
ord30
ord217

crypt32

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

ws2_32

recvfrom
WSASetLastError
ntohs
htons
getsockopt
getsockname
freeaddrinfo
closesocket
getaddrinfo
recv
send
sendto
select
__WSAFDIsSet
socket
ntohl
gethostname
WSAGetLastError
bind
ioctlsocket
listen
htonl
accept
WSAIoctl
connect
WSACleanup
getpeername
WSAStartup
setsockopt

vcruntime140_1

__CxxFrameHandler4

vcruntime140

__current_exception_context
__current_exception
__C_specific_handler
strrchr
strchr
memset
memmove
memcpy
memcmp
memchr
_CxxThrowException
__std_exception_destroy
strstr
__std_exception_copy

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

_exit
__p___argc
_invalid_parameter_noinfo_noreturn
_initterm
exit
_get_initial_narrow_environment
_set_app_type
_errno
_cexit
_crt_atexit
_register_onexit_function
_initialize_onexit_table
_initialize_narrow_environment
_configure_narrow_argv
strerror
_register_thread_local_exe_atexit_callback
_getpid
__p___argv
_beginthreadex
_seh_filter_exe
terminate
_c_exit
__sys_nerr
_initterm_e

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

fopen
__stdio_common_vfprintf
fflush
fgets
fputc
fread
fwrite
__stdio_common_vsprintf
fputs
__stdio_common_vsscanf
feof
fseek
ftell
_lseeki64
_set_fmode
__acrt_iob_func
_open
_close
_write
_read
__p__commode
fclose

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

isupper
strspn
strcspn
strncpy
strcmp
strncmp
strpbrk
tolower
_strdup

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

strtoll
strtol
atoi
strtoul

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

_callnewh
_set_new_mode
free
malloc
calloc
realloc

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

__setusermatherr

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

_fstat64
_stat64
_unlink
_access

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

_gmtime64
_time64

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

_configthreadlocale

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

qsort

advapi32

CryptEncrypt
CryptImportKey
CryptDestroyKey
CryptDestroyHash
CryptHashData
CryptCreateHash
CryptGenRandom
CryptGetHashParam
CryptReleaseContext
CryptAcquireContextA

Sections

.text
Size: 276KB - Virtual size: 275KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 72KB - Virtual size: 72KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 12KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 512B - Virtual size: 480B

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

Sharing

General

Malware Config

Signatures

Files

6b2b75ebd2f5ed8cda6c3902a207f46f

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

msvcp140

normaliz

wldap32

crypt32

ws2_32

vcruntime140_1

vcruntime140

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-convert-l1-1-0

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

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

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

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

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

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

advapi32

Sections

.text Size: 276KB - Virtual size: 275KB

.rdata Size: 72KB - Virtual size: 72KB

.data Size: 512B - Virtual size: 3KB

.pdata Size: 12KB - Virtual size: 12KB

.rsrc Size: 512B - Virtual size: 480B

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

.text
Size: 276KB - Virtual size: 275KB

.rdata
Size: 72KB - Virtual size: 72KB

.data
Size: 512B - Virtual size: 3KB

.pdata
Size: 12KB - Virtual size: 12KB

.rsrc
Size: 512B - Virtual size: 480B

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