downloader[.]exe

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General

Target

downloader.exe
Size

4.9MB
MD5

64f6f037f28ce94186b626adcbbd9e3f
SHA1

5d3332fc409051f7125b63ccad3006907c5685fa
SHA256

71ea159c363b8e29651cbf424b5d986298e832bab38d6def3b433a7467ee459d
SHA512

b55744e8d158c7485924f1bcb84843553a91780bbd10d09982b188d5f2191df58e2d667c03bf7029d5f47b73be58c2f81dbcea8fc3c2529d86a777d4eda90e22
SSDEEP

98304:fgS3ZxQCocYFXEQN/VznrOdCIg++a8Yg4f5OVio:fgCZ3ocYSCdznrj

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
downloader.exe

Files

downloader.exe
.exe windows:4 windows x64 arch:x64

1677619f4233c59af92fd3f2a9178d74

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

kernel32

DeleteCriticalSection
EnterCriticalSection
GetLastError
GetStartupInfoA
InitializeCriticalSection
IsDBCSLeadByteEx
LeaveCriticalSection
MultiByteToWideChar
SetUnhandledExceptionFilter
Sleep
TlsGetValue
VirtualProtect
VirtualQuery
WideCharToMultiByte

msvcrt

__C_specific_handler
___lc_codepage_func
___mb_cur_max_func
__getmainargs
__initenv
__iob_func
__lconv_init
__set_app_type
__setusermatherr
_acmdln
_amsg_exit
_cexit
_commode
_errno
_fmode
_initterm
_lock
_onexit
_unlock
abort
calloc
exit
fclose
fopen
fprintf
fputc
free
fwrite
getenv
localeconv
malloc
memcpy
memset
perror
signal
strerror
strlen
strncmp
system
vfprintf
wcslen

Sections

.text
Size: 28KB - Virtual size: 28KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 4.3MB - Virtual size: 4.3MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 4KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 2KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 104B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 76KB - Virtual size: 76KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 512B - Virtual size: 140B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/4
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/19
Size: 281KB - Virtual size: 281KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/31
Size: 15KB - Virtual size: 14KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/45
Size: 31KB - Virtual size: 30KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/57
Size: 6KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/70
Size: 2KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/81
Size: 67KB - Virtual size: 66KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/92
Size: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

1677619f4233c59af92fd3f2a9178d74

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

msvcrt

Sections

.text Size: 28KB - Virtual size: 28KB

.data Size: 4.3MB - Virtual size: 4.3MB

.rdata Size: 4KB - Virtual size: 4KB

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

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

.bss Size: - Virtual size: 2KB

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

.CRT Size: 512B - Virtual size: 104B

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

.rsrc Size: 76KB - Virtual size: 76KB

.reloc Size: 512B - Virtual size: 140B

/4 Size: 2KB - Virtual size: 1KB

/19 Size: 281KB - Virtual size: 281KB

/31 Size: 15KB - Virtual size: 14KB

/45 Size: 31KB - Virtual size: 30KB

/57 Size: 6KB - Virtual size: 5KB

/70 Size: 2KB - Virtual size: 2KB

/81 Size: 67KB - Virtual size: 66KB

/92 Size: 4KB - Virtual size: 3KB

.text
Size: 28KB - Virtual size: 28KB

.data
Size: 4.3MB - Virtual size: 4.3MB

.rdata
Size: 4KB - Virtual size: 4KB

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

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

.bss
Size: - Virtual size: 2KB

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

.CRT
Size: 512B - Virtual size: 104B

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

.rsrc
Size: 76KB - Virtual size: 76KB

.reloc
Size: 512B - Virtual size: 140B

/4
Size: 2KB - Virtual size: 1KB

/19
Size: 281KB - Virtual size: 281KB

/31
Size: 15KB - Virtual size: 14KB

/45
Size: 31KB - Virtual size: 30KB

/57
Size: 6KB - Virtual size: 5KB

/70
Size: 2KB - Virtual size: 2KB

/81
Size: 67KB - Virtual size: 66KB

/92
Size: 4KB - Virtual size: 3KB