Behavioral task
behavioral1
Sample
PesmobileGen.exe
Resource
win7-20240903-en
General
-
Target
PesmobileGen.exe
-
Size
231KB
-
MD5
f55b6dd676bb7064d38a1eaac5b08f69
-
SHA1
f772349cd296f12d6399fc613c0c898696ac89a7
-
SHA256
1563b6bc82b3606302ccfc90be5068858eaa4d7a9544fe67b2500228c707c992
-
SHA512
251ddb5bcb67ae9e3699c237e49452afcc7335e12eae14fb2b5834b847fec3be980ba9c05f1568dad35e84245f157c9a67ee7b5551e7bfbeb6b1ea086966851f
-
SSDEEP
6144:xloZM+rIkd8g+EtXHkv/iD4EMzNkqNlOQLWU1pAzg3b8e1mei:DoZdL+EP8EMzNkqNlOQLWU1pAzmM
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1270898251733663956/OPCvnSMz3KDXfn-5gLMn3HMcpLRLBKkmzt_nkzdAVMIJcY9H3pH5QSVD78gS0dTnsswq
Signatures
-
Detect Umbral payload 1 IoCs
resource yara_rule sample family_umbral -
Umbral family
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource PesmobileGen.exe
Files
-
PesmobileGen.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: 228KB
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