Behavioral task
behavioral1
Sample
stub.exe
Resource
win7-20230220-en
General
-
Target
stub.exe
-
Size
348KB
-
MD5
46b23e41aeba2bb731b8ae3e22a7e5dc
-
SHA1
a180b34c6f9cc519d1d3773904c56c3d952ca423
-
SHA256
c8277e88b37878917b46d509324a57846d58e285c3e06720a282e7bb34fd9bc0
-
SHA512
9387f05ce259a39be1a194fbb4a89747d4005866bfddfec2a5605437b899563f7bc5c4af2231f8bc76934ecbabc15ea1596c0c5d70a4207390be13cc6d95d176
-
SSDEEP
6144:+2NHXf500MGQqCgPsccwxdbNNepgFVswka:1d50yzVteGjswka
Malware Config
Extracted
quasar
1.3.0.0
new2
asyfguas.con-ip.com:555
QSR_MUTEX_ehHHLz4QY25Plj0Xry
-
encryption_key
SF8iuyfrBbCOUe75IKlr
-
install_name
Client.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Quasar Client Startup
-
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 stub.exe
Files
-
stub.exe.exe windows 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: 344KB - Virtual size: 344KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 2KB - 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