modiloader | rbase2pgsql[.]zip

Resubmissions

08/07/2024, 06:20

240708-g3t9gswfjq 10

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General

Target

rbase2pgsql.zip
Size

4.6MB
MD5

810f80df026f9b94e4c9dc0e2d9fabd7
SHA1

761a22dbf393b67ab470588dce30c4d9c05a7a46
SHA256

39364287ab839bbc25d4cc60dc935631f5429af01c155694b0a892bc7c5770dc
SHA512

cba627ecd203227e2f46099c43fe7414c54efd362e972497677d0e1fe726dde71d4bb46d1968fa89e578b55756beb112c4f6b675b8ee66f9780ab2dbad985b95
SSDEEP

98304:zpjy3CYJwKYV6bCqaZ3L/2ILNwsVNKGM5LQK/R+Jqd3wpICjRYIZa:fgoVMceIL1pMDP3wfa

Score

10^/10

modiloader

Malware Config

Signatures

ModiLoader First Stage 1 IoCs

resource	yara_rule
static1/unpack001/rbase2pgsql/rbase2pgsql.exe	modiloader_stage1

Modiloader family
modiloader

Unsigned PE 2 IoCs

Checks for missing Authenticode signature.

resource
unpack001/rbase2pgsql/Modus2Json.dll
unpack001/rbase2pgsql/rbase2pgsql.exe

Files

rbase2pgsql.zip
.zip
rbase2pgsql/Modus2Json.dll
.dll windows:4 windows x86 arch:x86

851e1b7067788deff2b83216ec788acc

Headers

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DEBUG_STRIPPED
IMAGE_FILE_DLL

Imports

kernel32

DeleteCriticalSection
EnterCriticalSection
FreeLibrary
GetLastError
GetModuleHandleA
GetProcAddress
InitializeCriticalSection
InterlockedExchange
IsDBCSLeadByteEx
LeaveCriticalSection
LoadLibraryA
MultiByteToWideChar
Sleep
TlsGetValue
VirtualProtect
VirtualQuery
WideCharToMultiByte

msvcrt

_access
_close
_fstat
_open
_read
_strdup
__dllonexit
__mb_cur_max
_errno
_iob
_isctype
_pctype
abort
atoi
calloc
fclose
fflush
floor
fopen
fputc
fputs
fread
free
fwrite
getenv
localeconv
malloc
memcpy
memmove
memset
pow
puts
realloc
setlocale
sprintf
sscanf
strchr
strcmp
strcpy
strcspn
strlen
strncmp
strncpy
strspn
strstr
strtol
tolower
vfprintf
wcslen

Exports

Exports

convertFile
convertString
freeString

Sections

.text
Size: 109KB - Virtual size: 109KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 44B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 17KB - Virtual size: 16KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.eh_fram
Size: 13KB - Virtual size: 12KB

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

.edata
Size: 512B - Virtual size: 122B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 24B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 32B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
rbase2pgsql/rbase2pgsql.exe
.exe windows:4 windows x86 arch:x86

Headers

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI

Sections

CODE
Size: 8.7MB - Virtual size: 8.7MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

DATA
Size: 239KB - Virtual size: 238KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

BSS
Size: - Virtual size: 156KB

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 20KB - Virtual size: 20KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: - Virtual size: 192B

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 512B - Virtual size: 24B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 721KB - Virtual size: 721KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 1.7MB - Virtual size: 1.7MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Resubmissions

Sharing

General

Malware Config

Signatures

Files

851e1b7067788deff2b83216ec788acc

Headers

File Characteristics

Imports

kernel32

msvcrt

Exports

Exports

Sections

.text Size: 109KB - Virtual size: 109KB

.data Size: 512B - Virtual size: 44B

.rdata Size: 17KB - Virtual size: 16KB

.eh_fram Size: 13KB - Virtual size: 12KB

.bss Size: - Virtual size: 2KB

.edata Size: 512B - Virtual size: 122B

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

.CRT Size: 512B - Virtual size: 24B

.tls Size: 512B - Virtual size: 32B

.reloc Size: 6KB - Virtual size: 6KB

Headers

File Characteristics

Sections

CODE Size: 8.7MB - Virtual size: 8.7MB

DATA Size: 239KB - Virtual size: 238KB

BSS Size: - Virtual size: 156KB

.idata Size: 20KB - Virtual size: 20KB

.tls Size: - Virtual size: 192B

.rdata Size: 512B - Virtual size: 24B

.reloc Size: 721KB - Virtual size: 721KB

.rsrc Size: 1.7MB - Virtual size: 1.7MB

.text
Size: 109KB - Virtual size: 109KB

.data
Size: 512B - Virtual size: 44B

.rdata
Size: 17KB - Virtual size: 16KB

.eh_fram
Size: 13KB - Virtual size: 12KB

.bss
Size: - Virtual size: 2KB

.edata
Size: 512B - Virtual size: 122B

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

.CRT
Size: 512B - Virtual size: 24B

.tls
Size: 512B - Virtual size: 32B

.reloc
Size: 6KB - Virtual size: 6KB

CODE
Size: 8.7MB - Virtual size: 8.7MB

DATA
Size: 239KB - Virtual size: 238KB

BSS
Size: - Virtual size: 156KB

.idata
Size: 20KB - Virtual size: 20KB

.tls
Size: - Virtual size: 192B

.rdata
Size: 512B - Virtual size: 24B

.reloc
Size: 721KB - Virtual size: 721KB

.rsrc
Size: 1.7MB - Virtual size: 1.7MB