Behavioral task
behavioral1
Sample
Grapflas.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
Grapflas.exe
Resource
win10v2004-20240226-en
General
-
Target
Grapflas.zip
-
Size
51KB
-
MD5
19b1544e558bca358ef23da200c9e40b
-
SHA1
b30420a5bd808b329a4f6da765f2add1b8ca7023
-
SHA256
193a29148fc26f660c273809864141a7b9f1cd63dcc278c55a0a7dce57f17a04
-
SHA512
e271af5a6b370d52b6778292e6e19dc01baeb95b35043488816387acb5e159efa35cff2f365cf8e40b4a43d2ce395cd132c7827c3fd71ce706b056da83ff17e0
-
SSDEEP
1536:9MUi2g7to962aXfVbW1G0YWyVQWQ9Sf1atL0/:pCftvZ/p9ahY
Malware Config
Signatures
-
resource yara_rule static1/unpack001/Grapflas.exe upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/Grapflas.exe unpack002/out.upx
Files
-
Grapflas.zip.zip
-
Grapflas.exe.exe windows:6 windows x86 arch:x86
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Sections
UPX0 Size: - Virtual size: 80KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 51KB - Virtual size: 52KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 1024B - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
-
out.upx.exe windows:6 windows x86 arch:x86
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Sections
.text Size: 71KB - Virtual size: 70KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 29KB - Virtual size: 28KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 6KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 512B - Virtual size: 488B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 5KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ