General
-
Target
7a845c7bcfd781b09e0da20118f2e396152fc3aae1e77113c8d3adab45077647
-
Size
534KB
-
MD5
2785b4bbb80b75836c685ac8a1a24f27
-
SHA1
32dcef1d5f8e45655478c3dd960e6f9422af691c
-
SHA256
7a845c7bcfd781b09e0da20118f2e396152fc3aae1e77113c8d3adab45077647
-
SHA512
fb7e706bfee26cd2c2036743799d7accd18bd150c1224bee7d42d8d88c196645d39c333e14fb2c00f18ca002c65940dac10072fe242d8d42b4d46a505d63961c
-
SSDEEP
6144:s8fGLJngzxsoIasFzFMkbcWV3Nce0/4obc4hpqEpZccKHBIAUYpnxVlGy3V8/GVX:WkxfIayFMPzf/m4hp7ncxKRYpn7Em
Malware Config
Extracted
quasar
2.1.0.0
Office01
172.81.131.113:4782
VNM_MUTEX_OFUOtYdHQP7Y7fAk1P
-
encryption_key
xufMEowCMSpdPlEx87tq
-
install_name
Client.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
mvscs
-
subdirectory
SubDir
Signatures
-
Contains code to disable Windows Defender 1 IoCs
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
Processes:
resource yara_rule sample disable_win_def -
Quasar family
-
Quasar payload 1 IoCs
Processes:
resource yara_rule sample family_quasar
Files
-
7a845c7bcfd781b09e0da20118f2e396152fc3aae1e77113c8d3adab45077647.exe windows 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: 531KB - Virtual size: 531KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 2KB - Virtual size: 1KB
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