Behavioral task
behavioral1
Sample
906745e760108f29a15f0a4b3db9b140cc9bd5376a4e721c0d96c3df73474f5c.exe
Resource
win7-20231129-en
General
-
Target
906745e760108f29a15f0a4b3db9b140cc9bd5376a4e721c0d96c3df73474f5c.exe
-
Size
3.1MB
-
MD5
d1b7e52863a0acdb4229ce515c7adef4
-
SHA1
d9553d2208d8b7e612fea581be1e320c365d10cb
-
SHA256
906745e760108f29a15f0a4b3db9b140cc9bd5376a4e721c0d96c3df73474f5c
-
SHA512
820cd7821442b38b98e92ef23d02509b1312b4cdfc325bb3aab6b10090019878e4be76ab406012541b313ba2d31a0205ad82bd40eee959f2da2c92ed1cb1b32f
-
SSDEEP
49152:PvBt62XlaSFNWPjljiFa2RoUYIWE+dEYDmk/7eAoGdp8WTHHB72eh2NT:Pvr62XlaSFNWPjljiFXRoUYIWE+Hl
Malware Config
Extracted
quasar
1.4.1
Office04
93.123.85.108:4782
e14b8f59-979b-4ebf-8602-dd3c4d6c301e
-
encryption_key
534734397C0FA9A1D28F061AD75DF4100BFF5787
-
install_name
Msconfig.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
msconfig.exe
-
subdirectory
SubDir
Signatures
-
Detects Windows executables referencing non-Windows User-Agents 1 IoCs
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA -
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
resource yara_rule sample INDICATOR_SUSPICIOUS_Binary_References_Browsers -
Detects executables containing common artifacts observed in infostealers 1 IoCs
resource yara_rule sample INDICATOR_SUSPICIOUS_GENInfoStealer -
Quasar family
-
Quasar payload 1 IoCs
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 906745e760108f29a15f0a4b3db9b140cc9bd5376a4e721c0d96c3df73474f5c.exe
Files
-
906745e760108f29a15f0a4b3db9b140cc9bd5376a4e721c0d96c3df73474f5c.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