libcurl[.]dll | Triage

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General

Target

libcurl.dll
Size

276KB
MD5

c5ad5cc4e8801fe6ac349ca2315c74e3
SHA1

19b5a1a73d174ef38a6da081589d4cb6796ea723
SHA256

941fe238d88b1db67642c5354e795e16f4c4a3688b046261f801faddbeb93943
SHA512

51223bc4003ea6a7a60f09e76e6870050813afddd1663c9285d5d0ca6f244583513f25b1ec0233266818052eec701b05d879f8a698a51d913f69580c3c5a9f1d
SSDEEP

6144:NGItWs5aH05VJ9sH4VZYeIc48PgYBio7plDa8p0L8F0uO7hIJa:NGc5aH05V0HcFIc48PbQE/NpLKuO7hUa

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
libcurl.dll

Files

libcurl.dll
.dll windows:5 windows x86 arch:x86

ac6ee26de7ae3facc11c13a649157f67

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

Imports

kernel32

GetProcAddress
GetLastError
LoadLibraryA
SleepEx
VerifyVersionInfoA
FreeLibrary
SetLastError
FormatMessageA
Sleep
GetStdHandle
GetFileType
WaitForMultipleObjects
PeekNamedPipe
ReadFile
GetTickCount
ExpandEnvironmentStringsA
VerSetConditionMask
DecodePointer
InterlockedExchange
InterlockedCompareExchange
TerminateProcess
GetCurrentProcess
UnhandledExceptionFilter
GetSystemTimeAsFileTime
GetCurrentProcessId
GetCurrentThreadId
QueryPerformanceCounter
DisableThreadLibraryCalls
IsProcessorFeaturePresent
IsDebuggerPresent
SetUnhandledExceptionFilter
EncodePointer

advapi32

CryptGetHashParam
CryptGenRandom
CryptDestroyHash
CryptReleaseContext
CryptHashData
CryptAcquireContextA
CryptCreateHash

ws2_32

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

msvcr100

_lseek
_stricmp
_strdup
_read
_open
_close
_except_handler4_common
_onexit
_lock
__dllonexit
_unlock
__clean_type_info_names_internal
_crt_debugger_hook
__CppXcptFilter
_fstat64i32
isspace
_strtoi64
strchr
_time64
tolower
sscanf
fflush
_stat64i32
memcpy
strrchr
fclose
fread
fopen
__iob_func
strncmp
memmove
qsort
fputs
fgets
strstr
isdigit
memchr
fwrite
strtol
strtoul
strncpy
memset
isalpha
isxdigit
strpbrk
getenv
sprintf
fputc
atoi
fseek
toupper
calloc
realloc
free
malloc
islower
isupper
isprint
isalnum
isgraph
_errno
strerror
__sys_nerr
_gmtime64
_mbschr
_mbsnbcpy
_malloc_crt
_encoded_null
_initterm
_initterm_e
_amsg_exit
_write

Exports

Exports

curl_easy_cleanup
curl_easy_duphandle
curl_easy_escape
curl_easy_getinfo
curl_easy_init
curl_easy_pause
curl_easy_perform
curl_easy_recv
curl_easy_reset
curl_easy_send
curl_easy_setopt
curl_easy_strerror
curl_easy_unescape
curl_escape
curl_formadd
curl_formfree
curl_formget
curl_free
curl_getdate
curl_getenv
curl_global_cleanup
curl_global_init
curl_global_init_mem
curl_maprintf
curl_mfprintf
curl_mprintf
curl_msnprintf
curl_msprintf
curl_multi_add_handle
curl_multi_assign
curl_multi_cleanup
curl_multi_fdset
curl_multi_info_read
curl_multi_init
curl_multi_perform
curl_multi_remove_handle
curl_multi_setopt
curl_multi_socket
curl_multi_socket_action
curl_multi_socket_all
curl_multi_strerror
curl_multi_timeout
curl_multi_wait
curl_mvaprintf
curl_mvfprintf
curl_mvprintf
curl_mvsnprintf
curl_mvsprintf
curl_pushheader_byname
curl_pushheader_bynum
curl_share_cleanup
curl_share_init
curl_share_setopt
curl_share_strerror
curl_slist_append
curl_slist_free_all
curl_strequal
curl_strnequal
curl_unescape
curl_version
curl_version_info

Sections

.text
Size: 219KB - Virtual size: 218KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 43KB - Virtual size: 42KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 11KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

ac6ee26de7ae3facc11c13a649157f67

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

advapi32

ws2_32

msvcr100

Exports

Exports

Sections

.text Size: 219KB - Virtual size: 218KB

.rdata Size: 43KB - Virtual size: 42KB

.data Size: 512B - Virtual size: 1KB

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

.reloc Size: 11KB - Virtual size: 11KB

.text
Size: 219KB - Virtual size: 218KB

.rdata
Size: 43KB - Virtual size: 42KB

.data
Size: 512B - Virtual size: 1KB

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

.reloc
Size: 11KB - Virtual size: 11KB