Behavioral task
behavioral1
Sample
osintool.exe
Resource
win7-20240903-en
General
-
Target
osintool.exe
-
Size
632KB
-
MD5
20181934a508ec23e7c2223be3c58e3b
-
SHA1
a29f3f89d10ff05f4589466bc11a2fd45016e0e5
-
SHA256
28fda1422979b63fd9b489a76cf5e43e68aa095eae547e96f050550b37208cab
-
SHA512
8f0a1dfa0e627d7779754cd045dc9dcaedbcb332870962706a9bbcc69d9383c8166c940844047ba4a85e3209f5bf0d284f7e84e67345347f8f2c21d93ef043f7
-
SSDEEP
12288:hoZtL+EP8shN9rI8jS67NokRq8zNiMdRC:fI8iN9rI8jS67NokRlBiMdA
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1312264598925344790/QIlCbExze1iw_e1zkeZ792QOLaj8nGWIjrO_7fuXi-iXKjKnWrqwQcXcL_p5RK0UxvMv
Signatures
-
Detect Umbral payload 1 IoCs
resource yara_rule sample family_umbral -
Umbral family
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource osintool.exe
Files
-
osintool.exe.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: 403KB - Virtual size: 402KB
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