General
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Target
OktaVerifySetup-4.9.3.1-7d0d6567.exe
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Size
3.1MB
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MD5
e2aa1170ff83b3dd6f95811748ebf747
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SHA1
99f30630c9c1c50557ad72e62d273c0dcfc6bb45
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SHA256
3c1aae052522cebe79b16a2231b6f32a4cb6716f12dfcc5d94ebb69c80e663b2
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SHA512
b17a806cdff4e8336ede15f1744fe591ccb1c67e622d34cc8034d8fed5949eff0c2c2273551d7987c1489725a1525068465603d24f6ae3a732f832c0057963c7
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SSDEEP
49152:YvrI22SsaNYfdPBldt698dBcjH9zwNbR00LoGd1cTHHB72eh2NT:YvU22SsaNYfdPBldt6+dBcjH9zwY6l
Malware Config
Extracted
quasar
1.4.1
Office
192.168.1.190:4782
192.168.1.197:4782
ffe7e97c-034f-44fc-8484-6f9eb4dae122
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encryption_key
A2A75FACA1C06678218490A9901AB58F2060EBFC
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install_name
sysokta.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
okta
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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 OktaVerifySetup-4.9.3.1-7d0d6567.exe
Files
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OktaVerifySetup-4.9.3.1-7d0d6567.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: 7KB - Virtual size: 7KB
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