Behavioral task
behavioral1
Sample
o8gMi.scr
Resource
win7-20240221-en
General
-
Target
o8gMi.scr
-
Size
229KB
-
MD5
e4e5629da7c768f605a4bd15456aaac1
-
SHA1
63d2852a27aa5edde1a7b20e56c382b82c70e5f4
-
SHA256
661514e62add3ef14dc1faaf11e1b23f543c3470304efaff4f2526723b884f82
-
SHA512
9216858e8578cea59ed76ef295358cb0882f1d484ea04260f62535756289318f734d23fe99c2c370f42f5fc6c76c589958cfcb04b34d19fb9a5a051ec35fc377
-
SSDEEP
6144:tloZM+rIkd8g+EtXHkv/iD4own0fVeGJOMFXSy3DNb8e1m2CxzHi:voZtL+EP8own0fVeGJOMFXSy35/AC
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1211387268460187728/3HFT8UWEGS_HJCF-av9z2O4zjBTxG9RCIvKPqf4Io5WfbLMqrdxrPGmAE3TKbLHXmpR3
Signatures
-
Detect Umbral payload 1 IoCs
resource yara_rule sample family_umbral -
Umbral family
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource o8gMi.scr
Files
-
o8gMi.scr.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: 227KB - Virtual size: 226KB
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