Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20241010-en
General
-
Target
Client-built.exe
-
Size
3.1MB
-
MD5
88213eb46504fd2a6e3977e73bc0dd2b
-
SHA1
2765643bdb8f2968d116d5b400dfaecc9d7597f7
-
SHA256
e832cc0da0e1298acb1088ba43c06897b58f8b3f6bbc0be18ec7eac3313fc7ba
-
SHA512
572b8d5fac6847ef91583d808338c852ebc49be41c8fd9c46f356a0f45fdcfa9d57eec642a22b1dadb5f53278f06763f424d361a90012bf4d4ecbca2fa366674
-
SSDEEP
49152:ivFt62XlaSFNWPjljiFa2RoUYIJoRJ6vbR3LoGd5THHB72eh2NT:iv362XlaSFNWPjljiFXRoUYIJoRJ6B
Malware Config
Extracted
quasar
1.4.1
jjsploit
188.64.33.70:4782
37345452-b4a7-4ed0-aaed-6b1e75131c4b
-
encryption_key
DD3FB2AC53353CAF73D31F6A4C82182824F3697B
-
install_name
system.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
System Updater
-
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
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