Behavioral task
behavioral1
Sample
bdbc624e4c40d85f3927d8dc261ee069982728471bde7a245504c3e903f1234e.exe
Resource
win7-20240221-en
General
-
Target
bdbc624e4c40d85f3927d8dc261ee069982728471bde7a245504c3e903f1234e
-
Size
234KB
-
MD5
65e7b5e4dd86e66cddd279dced3c31e5
-
SHA1
5b1836bd0519a866848d5867b42c9182066109bf
-
SHA256
bdbc624e4c40d85f3927d8dc261ee069982728471bde7a245504c3e903f1234e
-
SHA512
ccb978eddac4b06c992db66db63e08964f94181fb068c76281d5c6e13e69b85723a89780110f3a5fb7570a79ca24dff8d78270f13f1faa419a98715c1fbd3f14
-
SSDEEP
6144:tloZM9rIkd8g+EtXHkv/iD4WeANbYMTiqL9Y0hnT+Y8e1mki:voZOL+EP8WeANbYMTiqL9Y0hFI
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1249603922847338587/DEY5Xr9R1aQvy3CvoiaXSP5jJfO5TpGj07lrnS_vZzUXZKj83-TpKHRAA1znmvBvCvvI
Signatures
-
Detect Umbral payload 1 IoCs
resource yara_rule sample family_umbral -
Detects executables attemping to enumerate video devices using WMI 1 IoCs
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice -
Detects executables containing possible sandbox analysis VM names 1 IoCs
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_SandboxComputerNames -
Detects executables containing possible sandbox analysis VM usernames 1 IoCs
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_SandboxUserNames -
Detects executables containing possible sandbox system UUIDs 1 IoCs
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_SandboxSystemUUIDs -
Umbral family
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource bdbc624e4c40d85f3927d8dc261ee069982728471bde7a245504c3e903f1234e
Files
-
bdbc624e4c40d85f3927d8dc261ee069982728471bde7a245504c3e903f1234e.exe windows:4 windows x86 arch: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_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 228KB - Virtual size: 227KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 5KB - Virtual size: 5KB
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