Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20241010-en
General
-
Target
Client-built.exe
-
Size
3.1MB
-
MD5
a72eb9413e621f09991cb29a3a1209c0
-
SHA1
ff376c2982c20f671c9d282fa9891c17d2dd7f8d
-
SHA256
aea58b72a2a36d5f0401caba08756cad63465d1b40466cb77809f554b6e5d02b
-
SHA512
ef7c21b9b59eb28764c36392635a256dccc2b67896c384736da6ebb30166a2c565550b9967fa206262dcbad5d08e340edf2ea41d897a5b3ba4ced218e3354a3d
-
SSDEEP
49152:KveI22SsaNYfdPBldt698dBcjHk7RJ6QbR3LoGdmTHHB72eh2NT:KvT22SsaNYfdPBldt6+dBcjHk7RJ6q
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.0.254:4782
b5c485dd-0be7-4175-9240-b94d067a1289
-
encryption_key
ACAEE58B1EF31BFCC4D37857EF8688477F9EBF41
-
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-built.exe
Files
-
Client-built.exe.exe windows:4 windows x86 arch:x86
Password: game12
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