Behavioral task
behavioral1
Sample
Clientbuilt.exe
Resource
win7-20240903-en
General
-
Target
Clientbuilt.exe
-
Size
3.1MB
-
MD5
e738de01ca4d5eff05a7362e1db532f5
-
SHA1
a7b3c6cb531d28f49338865aaa484214a7efdade
-
SHA256
dfdff0dc5896434ed48541fbadc6120574797e4371821f9974784746d47d03a9
-
SHA512
0631c64f9e58614884a6b8d6388f083d2d374ffe3d64b731563d6a7dc1c05a2dc60a63f10ef55b387d5c7b29aaa51bb611e1370a4222b7b261ccc727c4b21b1a
-
SSDEEP
98304:swpMYw6Bg1nG2VuKeuvYSuJsnYOd9uysypAgVebSG:5Eqyp/
Malware Config
Extracted
quasar
1.4.1
obf
147.185.221.22:34344
2e641487-85b0-40c1-809b-d0bdb9ba57e8
-
encryption_key
7E5AC03E4AED67063F3FADC39DF8599FF4500C48
-
install_name
Windows Host Proccess.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Windows Host Proccess
-
subdirectory
WIndowsSupport
Signatures
-
Quasar family
-
Quasar payload 1 IoCs
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Clientbuilt.exe
Files
-
Clientbuilt.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