Behavioral task
behavioral1
Sample
Client.exe
Resource
win7-20231215-en
General
-
Target
Client.exe
-
Size
3.1MB
-
MD5
6f293272df899a043acbf788caf81c1c
-
SHA1
b560917bf5c67c37eb646acc9880c5a80620fce5
-
SHA256
8555743631267a78de02ae65d5454e3bfc2ac6c5336dab259fcff5316aba840c
-
SHA512
2bd856adf50ed0459049b981303a376e7a3ecb24e68c16b6302d86c9af0fb9c705dc302a038a138fe0f2c331d86e9c45b67d3938a6b6b855ccb4d8f6c5eea835
-
SSDEEP
49152:fvjI22SsaNYfdPBldt698dBcjHrnRJ6lbR3koGdXRTHHB72eh2NT:fvc22SsaNYfdPBldt6+dBcjHrnRJ6g
Malware Config
Extracted
quasar
1.4.1
Office04
s4.v100.vip:27923
d5414082-4cab-4589-99bb-7dd47fd5eb64
-
encryption_key
18854790AF8AC5E8BF1537F60123BF3CEB9A5B09
-
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 Client.exe
Files
-
Client.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