Behavioral task
behavioral1
Sample
0337de28411eeb2ed992a2c364ae34bca947f2e57ffcf9c37148e6e633179dce.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
0337de28411eeb2ed992a2c364ae34bca947f2e57ffcf9c37148e6e633179dce.exe
Resource
win10v2004-20240802-en
General
-
Target
7c76456c13f188f08a29b77c9806c33bbfcb2bd8102c5951e83fcf9b0c1ef886
-
Size
505KB
-
MD5
a8dabba99e9fb31a58efd5a8666c3cfd
-
SHA1
ac992433d546e8a37c9e52639cd94840a669509d
-
SHA256
7c76456c13f188f08a29b77c9806c33bbfcb2bd8102c5951e83fcf9b0c1ef886
-
SHA512
df9c70776a3c1247e2048b1f008fbf9adf75a306a90bd9701d974b22e686924c5f51da962b5130878539960f1518f8d278e188b25a584b9cf6614fd52ead616c
-
SSDEEP
6144:FI0ERk4zAzpe4j3+02T0PjCcvw1TRA8ozj5FEvMnyiQZZLrHmZN80SC8ZTt66Dvi:3ERkD44r+0vbTvuRnw5uzDPL28bTNOXJ
Malware Config
Extracted
nullmixer
http://wensela.xyz/
Signatures
-
Nullmixer family
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/0337de28411eeb2ed992a2c364ae34bca947f2e57ffcf9c37148e6e633179dce
Files
-
7c76456c13f188f08a29b77c9806c33bbfcb2bd8102c5951e83fcf9b0c1ef886.zip
Password: infected
-
0337de28411eeb2ed992a2c364ae34bca947f2e57ffcf9c37148e6e633179dce.exe windows:4 windows x86 arch:x86
f9fc0ecba4bcf3f4eadacd9b358488bc
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
Imports
kernel32
DeleteCriticalSection
EnterCriticalSection
FreeLibrary
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetLastError
GetModuleHandleA
GetModuleHandleW
GetProcAddress
GetStartupInfoA
GetSystemTimeAsFileTime
GetTickCount
InitializeCriticalSection
IsDBCSLeadByteEx
LeaveCriticalSection
LoadLibraryA
MultiByteToWideChar
QueryPerformanceCounter
SetUnhandledExceptionFilter
Sleep
TerminateProcess
TlsGetValue
UnhandledExceptionFilter
VirtualProtect
VirtualQuery
WideCharToMultiByte
msvcrt
___mb_cur_max_func
__doserrno
__getmainargs
__initenv
__lconv_init
__p__acmdln
__p__fmode
__pioinfo
__set_app_type
__setusermatherr
_amsg_exit
_cexit
_errno
_fdopen
_filelengthi64
_fileno
_fileno
_fstat64
_initterm
_iob
_lseeki64
_onexit
_popen
_read
_strnicmp
_write
_write
abort
atoi
calloc
exit
fclose
fflush
fgetpos
fopen
fprintf
fputc
fputs
fread
free
fsetpos
fwrite
getc
getenv
getwc
isspace
iswctype
localeconv
malloc
memchr
memcmp
memcpy
memmove
memset
putc
putwc
realloc
setlocale
setvbuf
signal
sprintf
strchr
strcmp
strcoll
strerror
strftime
strlen
strncmp
strtoul
strxfrm
towlower
towupper
ungetc
ungetwc
vfprintf
wcscoll
wcsftime
wcslen
wcsxfrm
libwinpthread-1
pthread_cond_broadcast
pthread_cond_wait
pthread_getspecific
pthread_key_create
pthread_mutex_destroy
pthread_mutex_init
pthread_mutex_lock
pthread_mutex_unlock
pthread_once
pthread_setspecific
user32
FindWindowA
ShowWindow
libcurlpp
_ZN6curlpp10OptionBaseC2E10CURLoption
_ZN6curlpp10OptionBaseD2Ev
_ZN6curlpp11UnsetOptionC1EPKc
_ZN6curlpp12RuntimeErrorD2Ev
_ZN6curlpp20libcurlRuntimeAssertEPKc8CURLcode
_ZN6curlpp4Easy7performEv
_ZN6curlpp4EasyC1Ev
_ZN6curlpp4EasyD1Ev
_ZN6curlpp7CleanupC1Ev
_ZN6curlpp7CleanupD1Ev
_ZNK6curlpp10OptionBaseltERKS0_
libcurl
curl_easy_setopt
Sections
.text Size: 633KB - Virtual size: 633KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 7KB - Virtual size: 6KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 40KB - Virtual size: 40KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
/4 Size: 232KB - Virtual size: 231KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.bss Size: - Virtual size: 3KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 4KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.CRT Size: 512B - Virtual size: 52B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: 512B - Virtual size: 8B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
/14 Size: 512B - Virtual size: 240B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/29 Size: 100KB - Virtual size: 99KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/41 Size: 6KB - Virtual size: 6KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/55 Size: 21KB - Virtual size: 21KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/67 Size: 512B - Virtual size: 56B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/80 Size: 1024B - Virtual size: 714B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/91 Size: 42KB - Virtual size: 41KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/102 Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ