Behavioral task
behavioral1
Sample
RCM.exe
Resource
win7-20240903-en
General
-
Target
RCM.exe
-
Size
3.1MB
-
MD5
527311afba2030991627314d6d992872
-
SHA1
868cc2fb935d507ad1e5ae6b8bb680df8f1cf18b
-
SHA256
314b220c14c4d05854d3b0cf22778bc0fe8847547a92e7c66fcf4a5215a36ef1
-
SHA512
d07a70ac543b78560f4ba4bb5d4ec6fcdd9b9c1135f69479f38fd156e74fca8fde51699b19bc7ceda365cc63466aafbfc46b2f48c0047ab77f2196380fdefc62
-
SSDEEP
49152:3vBG42pda6D+/PjlLOlg6yQipV7dIUjhHLoGdmlTHHB72eh2NT:3vQ42pda6D+/PjlLOlZyQipV7dIC2
Malware Config
Extracted
quasar
1.4.1
RCM
146.70.202.5:4782
10.81.0.12:4782
192.168.0.18:4782
81382624-673a-4c97-981b-0f7cc04e5d5f
-
encryption_key
7DC1AC38C27B4268F24B45F003915B01D4E56840
-
install_name
RCM.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Quasar Client Startup
-
subdirectory
RCM
Signatures
-
Quasar family
-
Quasar payload 1 IoCs
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource RCM.exe
Files
-
RCM.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