Static task
static1
Behavioral task
behavioral1
Sample
RefBoost Stub Loader/FirstFloor.ModernUI.dll
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
RefBoost Stub Loader/FirstFloor.ModernUI.dll
Resource
win10v2004-20221111-en
Behavioral task
behavioral3
Sample
RefBoost Stub Loader/RefBoost.exe
Resource
win7-20221111-en
Behavioral task
behavioral4
Sample
RefBoost Stub Loader/RefBoost.exe
Resource
win10v2004-20221111-en
General
-
Target
efc25990eafd0d0f559146184f3fe4ad83c1c667fc5d3c825cbc9248e1e4e10c
-
Size
171KB
-
MD5
acdefc137888d5eb96e54462cecd45a4
-
SHA1
778b1026fb5d974e5b29a12d5165910fb3d07bb3
-
SHA256
efc25990eafd0d0f559146184f3fe4ad83c1c667fc5d3c825cbc9248e1e4e10c
-
SHA512
cbae532d5f91c8703b62856ba670976cee3149193463a48ee522bf8504584c6d004e17f4dc8c0c1bae2197da7476211cb8835d57505b51bcab6e4a4d8a996e65
-
SSDEEP
3072:Gig2Uu4XyBb1Xb2JM3yRRDtZwaMVYBGhJSWheeoara/mhcumKDHVDRFqQTO:Gnuo0RXA+eRnw3MGhxeePrNDNRMQTO
Malware Config
Signatures
Files
-
efc25990eafd0d0f559146184f3fe4ad83c1c667fc5d3c825cbc9248e1e4e10c.zip
-
RefBoost Stub Loader/FirstFloor.ModernUI.dll.dll windows x86
dae02f32a21e03ce65412f6e56942daa
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorDllMain
Sections
.text Size: 238KB - Virtual size: 237KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 1024B - Virtual size: 1016B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
-
RefBoost Stub Loader/RefBoost.exe.exe windows x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 109KB - Virtual size: 108KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 99KB - Virtual size: 98KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ