Behavioral task
behavioral1
Sample
3a3a281e6488b98895402f29a3756463f018ca96b4ebfcfee43e6e7d71e1515bN.exe
Resource
win7-20240708-en
General
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Target
3a3a281e6488b98895402f29a3756463f018ca96b4ebfcfee43e6e7d71e1515bN.exe
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Size
3.1MB
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MD5
ab02937fb8fc8ccce7853d22fe9ff280
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SHA1
cf180eba95b42bcf3ff80ed3e2922d7805ec1f72
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SHA256
3a3a281e6488b98895402f29a3756463f018ca96b4ebfcfee43e6e7d71e1515b
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SHA512
7fd897a2f658181fd68cc036069c20f7a25afb92d07684005085b68d1f7e96dcb84688f0b8132ca0c200c2d0ac698e6a52014a0b8c8ea2bfe4b314c4756ee1b5
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SSDEEP
49152:Vvht62XlaSFNWPjljiFa2RoUYIdqWhybRjPLoGddJfTHHB72eh2NT:VvL62XlaSFNWPjljiFXRoUYIdqWhWT
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.0.17:5555
3b1732e2-6a81-44bb-8d99-4472451b1cf3
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encryption_key
871AD53C1EE1C8F197D53D3E1DCA45CC62B82B8D
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install_name
javaconfig.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
JavaUpdater
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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 3a3a281e6488b98895402f29a3756463f018ca96b4ebfcfee43e6e7d71e1515bN.exe
Files
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3a3a281e6488b98895402f29a3756463f018ca96b4ebfcfee43e6e7d71e1515bN.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: 9KB - Virtual size: 8KB
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