Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240221-en
General
-
Target
Client-built.exe
-
Size
4.4MB
-
MD5
2de2cbb979a3b9291b5343339a87a304
-
SHA1
5d9c9b6b03d7ba016c45c2b596e39857545d365c
-
SHA256
b108344a4bdd297bc875c4da54162c753b1b104abb1e5383b2ed348fea2a0eea
-
SHA512
e2060dd24ed3fafb17fb0ecfec0d8af192e9412c50bab600b1e57df2ce540d794ffa746d1cb7d2662d9ab646f7b89a875741910cbeced119ae9bf15de4701458
-
SSDEEP
49152:y0wO2S0vjTqpi90TCJ/TCr3xBooZEKZ+WijUs+9VBMsXUK/2HHBX2ehgNTIGs0:y0m/vjTqgGr3xfZF+W4X+80
Malware Config
Extracted
quasar
1.4.1
Office04
acehere.duckdns.org:5937
cc113a41-0f7a-4aa0-b7eb-86ec23366dd0
-
encryption_key
CB0A510E26BC61E9B8DAEB6ACA72BF89FD6CF806
-
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
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: 4.4MB - Virtual size: 4.4MB
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