Behavioral task
behavioral1
Sample
a1e5b82bea122211409574254e28d9ca1660c9d0cde834fb9f8dc72256e512d6.exe
Resource
win7-20240705-en
General
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Target
a1e5b82bea122211409574254e28d9ca1660c9d0cde834fb9f8dc72256e512d6
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Size
3.3MB
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MD5
f842c373e738068ee1528da20f2f17c4
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SHA1
2feb962e3087efd72a02f2c847b205873a816de3
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SHA256
a1e5b82bea122211409574254e28d9ca1660c9d0cde834fb9f8dc72256e512d6
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SHA512
8724881b1d57fd3dac726e3336078f5e8377cff4ea5568df65494fe301a53b5d36a1ebc7a3855b06e153b4422502f239df27fc149d24208095c06a539d888d4c
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SSDEEP
49152:EvSI22SsaNYfdPBldt698dBcjHGimA1J51oGdTITHHB72eh2NTP:Ev/22SsaNYfdPBldt6+dBcjHGimojh
Malware Config
Extracted
quasar
1.4.1
byfron
192.168.112.130:4782
df713ee6-5b68-4e7e-aa35-15b1e48d3214
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encryption_key
2CB5EC3479A6A0C27E64B7436D90A3FA7E4A98FA
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install_name
WindowsUpdateHelper.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
RobloxByFron
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subdirectory
SubDir
Signatures
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Quasar family
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Quasar payload 1 IoCs
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource a1e5b82bea122211409574254e28d9ca1660c9d0cde834fb9f8dc72256e512d6
Files
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a1e5b82bea122211409574254e28d9ca1660c9d0cde834fb9f8dc72256e512d6.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: 185KB - Virtual size: 184KB
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