Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240611-en
General
-
Target
Client-built.exe
-
Size
3.1MB
-
MD5
1847b8b946ac903e78e64910c28d3b11
-
SHA1
63da434139fb81e5b4fb6934227b41ba4027117c
-
SHA256
17242abb236c188858e3e908bde7c005563f15394b3fbc038eb15b9ab1cbeae2
-
SHA512
11e2aa6f82cebafd81960001b7f7fd4ffcf0cb73f6a350f429cda1f918a980498f2697a5842d5f42af8015c7b0c9c19bd793c61c3eed72174a824d549827c824
-
SSDEEP
49152:XvOlL26AaNeWgPhlmVqvMQ7XSKJa1MzQbtvJG3oGd+BTHHB72eh2NT:Xv+L26AaNeWgPhlmVqkQ7XSKsbbU
Malware Config
Extracted
quasar
1.4.1
Eyewalled
147.185.221.18:18043
147.185.221.18:1358
5db6556f-7c80-43cf-b281-328d6344d9a3
-
encryption_key
41EF2CD18F9D26A3BF2E5D47072FCE9779CF25CA
-
install_name
Client.exe
-
log_directory
Logs
-
reconnect_delay
3001
-
startup_key
Quasar Client Startup
-
subdirectory
Management
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
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