Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240611-en
General
-
Target
Client-built.exe
-
Size
3.1MB
-
MD5
1e48869d1ce254c1aba0e61aedcdba8e
-
SHA1
cf79b1e78d9e1616208e653c4df4eef3b9f7360b
-
SHA256
ca182b6ce56a01a69122b24469fe5ad78e0cda78caeb49e5a814e2ac5774a10a
-
SHA512
fc6469a2297258cd9723f2d6c795e78c5b065ed709384bb18fe0fb8255cb2760e0633ec2683652ef88abd87ac21ef1d31eee3fd35e64f464d4da0c205fdcb343
-
SSDEEP
49152:7vilL26AaNeWgPhlmVqvMQ7XSKeQ03far7ToGddTHHB72eh2NT:7vaL26AaNeWgPhlmVqkQ7XSKu3Y
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.1.150:4782
4fa54cdc-4bee-4759-b0fd-21bb6d6f9eed
-
encryption_key
99A3D9CE1DE6501187FC4C0E50EBB3FE8AD7B9A8
-
install_name
Client.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Microsoft Task Manager Worker Service
-
subdirectory
SubDir
Signatures
-
Quasar family
-
Quasar payload 1 IoCs
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource Client-built.exe
Files
-
Client-built.exe.exe windows:4 windows x86 arch:x86
Password: 123
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