General
-
Target
xbullet.exe
-
Size
254KB
-
MD5
759abb0ea6e03a6f3fd3b80e60a3e79c
-
SHA1
5854c5256be0bbd35caa21d307de5254dafca201
-
SHA256
08cd6b329f07ef687b517e118e65137548974a7970f1c539d5c219b8ab3f0adf
-
SHA512
905de6032741aa937db7f64b75c8e5a95037651ebecce4958526312e8e100a006a128d4ee835a2031496a5560e2d3053a1d1a8022121d98b12440a60cefc4701
-
SSDEEP
6144:K4oZoLeVHPtHgTIAaZgCwDx7axHU0unC28ejI8h7:xoZVHPvWCwjXCsIg
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1255476283761103002/CyWuJOWXfOjrVISzYsuNzXekwEo6Q5YpWrQyAa6eA9_MceetwcA7YKGxK1QGm0QvI_Om
Signatures
-
Detect Umbral payload 1 IoCs
resource yara_rule sample family_umbral -
Umbral family
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource xbullet.exe
Files
-
xbullet.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: 251KB - Virtual size: 251KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 1KB - Virtual size: 1KB
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