General
-
Target
Client-built.exe
-
Size
3.1MB
-
MD5
fbf8bf1a542094f980a0ebadf0cd0331
-
SHA1
d92f0eb94e1d7bccf4e3512ed61d769720d425d7
-
SHA256
fa281523c8726d55023091c15321edca91ad7e480d0b0bb1f381e94861a84383
-
SHA512
7107265fc94a19abaf05b09c28c4c3482add48d863f30b3d3b9bda096968f9923e8a28ef8f63b7f709e6d0ef45a564fb841ebd59df421f1cb0b13f7ff3179290
-
SSDEEP
49152:Wvkt62XlaSFNWPjljiFa2RoUYIYCF1JaLoGdTTHHB72eh2NT:Wv462XlaSFNWPjljiFXRoUYIYC2
Malware Config
Extracted
quasar
1.4.1
SLAVE
uk2.localto.net:39077
cc0a2b76-665e-4e16-b318-5ee02270fbcd
-
encryption_key
D7F09F1F0B9CECC640BA0B3D8975FBE5CED725B5
-
install_name
UpdateHost.exe
-
log_directory
Error Logs
-
reconnect_delay
3000
-
startup_key
WOS64
-
subdirectory
Windows
Signatures
-
Quasar family
-
Quasar payload 1 IoCs
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
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