Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240903-en
General
-
Target
Client-built.exe
-
Size
3.2MB
-
MD5
8bb05d28fb2de6c00e4f9237cb9d3ce9
-
SHA1
14507bff45cf98227291084caf8d2994027e4d91
-
SHA256
72779331ccef1ecb19122b72a2a2745b2c6f46d3b2f811d6cdfd361969408b13
-
SHA512
cb28635b80bd62974559a3983f97e693b07d0b98c2ea7c4f88a7f51299500689f08dd47953e9550c206021b9779f3676920416962d7a07594e2c10a5e717e782
-
SSDEEP
49152:Yvht62XlaSFNWPjljiFa2RoUYI9cUZxoGtvAoTHHB72eh2NTx:YvL62XlaSFNWPjljiFXRoUYI9cw3
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.208.1:4782
3f84c085-3a8d-4b82-9872-c704d7977ad0
-
encryption_key
69B752FA4F70AC7EF5AE67EAE90277065B69315A
-
install_name
Client.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Exam
-
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
Password: infected
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: 52KB - Virtual size: 51KB
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