Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240708-en
General
-
Target
Client-built.exe
-
Size
3.1MB
-
MD5
82ba7526f0ba0ee9fd92c10b2aafd355
-
SHA1
b53cfc38809e7e439c740b6168de81ece2310e49
-
SHA256
cec358561bbae4d72b2665c1b5fd48cfee3f1fed503efb63fe1f9ce70fa7936a
-
SHA512
a46d293aaf128682787f9bcc3754b18ce9b2870b9a781695bb7b26183002a2c501c6c04cffbf56c64d1c346d353018eed3fcb09f744509027466aa5e272dc429
-
SSDEEP
49152:Cvkt62XlaSFNWPjljiFa2RoUYILWRJ6rbR3LoGdg+THHB72eh2NT:Cv462XlaSFNWPjljiFXRoUYILWRJ69Q
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.1.4:4782
7e7eefb0-bbcf-4b86-acd2-8a3675af71f2
-
encryption_key
850E5D08EE2F98145C3742B9BDCCD637E6DD2097
-
install_name
taskhost.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
taskhost
-
subdirectory
SKR
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