Behavioral task
behavioral1
Sample
stub.exe
Resource
win7-20240704-en
General
-
Target
stub.exe
-
Size
53.7MB
-
MD5
07a4b031976c6e9ad80027863bc7741a
-
SHA1
c52738c7e0f3ea1bf10d47f73cce0ba491a8542b
-
SHA256
53cb412427a28483442e1c1c52b7339cea49682d000d51aedc98c0fb7a13b5f8
-
SHA512
beec22adc773620167e52c3e8b1c0ec0bf6f0ab808652759261e61c3ccbe97e16caf294ef68ed20e65372d9bbaebc8a8b3fab868ac812f390edf4a77e1076c11
-
SSDEEP
1572864:y5q2Edpp1DAdFV+rkBg7DcO3ZOzsUsVHiphQMl+9MlxE0mhxAW:6gppGgP1IzsfVyQA+E3
Malware Config
Extracted
quasar
1.4.1
Office04
147.185.221.20:9835
147.185.221.20:18563
da84adab-a321-4164-9473-73ad56cb4ed3
-
encryption_key
99DD896C463A5DEFC60E5185D43A6893ACB75CFB
-
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: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: 53.7MB - Virtual size: 53.7MB
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