Behavioral task
behavioral1
Sample
Client.exe
Resource
win7-20231215-en
General
-
Target
Client.exe
-
Size
3.1MB
-
MD5
82d4e67c05db98a6f3aa83bfd680f693
-
SHA1
edea0473f4a1028685b6aceb1f61c4495c36041d
-
SHA256
ced760664a7c5580e324d99d695b119c1f3ec94d1d9c56d1d3882347f0c6eb10
-
SHA512
234031905913a37f3fe4045b0e8c4ff3d22399924f0449adc116dd817c7f9d202e9d24e234596f55c401ba243bfa8b6c5d7202fd5b318532263edf30b8a5a50e
-
SSDEEP
49152:3vEuf2NUaNmwzPWlvdaKM7ZxTwfYRJ6qbR3LoGdgTHHB72eh2NT:3vzf2NUaNmwzPWlvdaB7ZxTwfYRJ6E
Malware Config
Extracted
quasar
1.4.1
Office04
172.20.16.1:4782
172.20.16.1:10000
10.1.1.23:10000
85487c38-216c-4591-824a-1282bbefa93a
-
encryption_key
3F3CDB117CBDE375FA7584CD7210EB59B714F047
-
install_name
Client.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
james
-
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.exe
Files
-
Client.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