Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win11-20240802-en
General
-
Target
Client-built.exe
-
Size
3.1MB
-
MD5
0ea8f3d77ffdb05ced4718446d0a7138
-
SHA1
01acb145ec938dedec7f9f427977d4c6f79d8d93
-
SHA256
7268d5f5afa379beeb81b680194ddb2365f640386df00b2a9d58f3bce7479089
-
SHA512
e211c056aeab2b2fe475fcee7a3f829c04f0a13986bf46874d1eb05fa630e4d4788eda84037c494fc000af69f08b3d71dabc75757aca487c483408aad4430c15
-
SSDEEP
49152:rvbI22SsaNYfdPBldt698dBcjHwlxNESEfk/ikLoGdYTHHB72eh2NT:rvk22SsaNYfdPBldt6+dBcjHKxyq
Malware Config
Extracted
quasar
1.4.1
Runtime Broker
192.168.245.129:4782
87f324c7-5cc7-4a0d-adef-c428f2a7f0df
-
encryption_key
4B3392191605A24619E1AA91B0318062BBEF20FC
-
install_name
Client.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Quasar Client Startup
-
subdirectory
SubDir
Signatures
-
Quasar family
-
Quasar payload 1 IoCs
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Client-built.exe
Files
-
Client-built.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
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_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 3.1MB - Virtual size: 3.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 3KB - Virtual size: 2KB
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