Behavioral task
behavioral1
Sample
installer.exe
Resource
win7-20240903-en
General
-
Target
installer.exe
-
Size
3.1MB
-
MD5
dbde842faf140037f07cad5bd09771e9
-
SHA1
64dbcaf7d1e664556b5fd82e0e8b8efeae38dea0
-
SHA256
9b4a5a44a932c5c42086a5989f87a5261ab8e6e96bc8ea2c0cf7ca6de68bc7ad
-
SHA512
8a970a2ef3e0bcf378acce7a748289b8cdc68c5ff7b50d940dd4ce1f94c9790e9be6a440e1baf57e5fab8a6d767d4a1ddbe6b2244c23a95f91f553af32339885
-
SSDEEP
49152:hveI22SsaNYfdPBldt698dBcjHDCG1JELoGdXTHHB72eh2NT:hvT22SsaNYfdPBldt6+dBcjHDC3
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.68.104:4782
93aae856-95a8-4f87-bb5a-e035e00ec571
-
encryption_key
A9BD88FEF9A2EA52A07F5C37D168C315C868BC60
-
install_name
Client.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Antimalware Core Service
-
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 installer.exe
Files
-
installer.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: 7KB - Virtual size: 7KB
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