Behavioral task
behavioral1
Sample
Zul Free.exe
Resource
win7-20231020-en
General
-
Target
Zul Free.exe
-
Size
230KB
-
MD5
a47cffac2602038b4cfc070f8a05243a
-
SHA1
4111453f445d10ef516e98a000cc84845658dabe
-
SHA256
29456c78a229429c66b4ce8997c9bb6593ad9b4e8928e094eb25caf4a7ee0e40
-
SHA512
e390d7c96e2b5b2cad52b80c276787cb37d7ca3a171868037c1f1ef9e58177baa9e07f8866e0a95560ee9e0af0a38ba218f9feeaf1f19d77915f9e5c08d4070d
-
SSDEEP
6144:1loZM+rIkd8g+EtXHkv/iD4tT1FzQEbqCzFQMpxbztjFK8e1mOvi:XoZtL+EP8tT1FzQEbqCzFQMpVpjy0
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1156026520003936297/W8Ijh4VOw1A0oT7l38oDF7pa28tJ_hrPwUPLuxpT7w0A6BeG4alvRN79hvJ6qO7NgoP5
Signatures
-
Detect Umbral payload 1 IoCs
resource yara_rule sample family_umbral -
Umbral family
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Zul Free.exe
Files
-
Zul Free.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: 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