Behavioral task
behavioral1
Sample
Client.exe
Resource
win7-20231215-en
General
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Target
Client.exe
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Size
3.1MB
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MD5
eacbae2d0f3d62fc3c078834d5f6c426
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SHA1
d8a72fa35caf604e2b782d0e80302fd24c4f0f9c
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SHA256
3ca4e6deae0fb30f79adab295116a91011ca88e3d75187f334a39a91e22254cf
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SHA512
04461484a84195541c24b3c9764efbbb33c93d90bc30925029bc133c5f817a4d2e1f3b31990aa2eb624dca6e6b66c76c0d04de8bfb2b009c703432ef846b88b5
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SSDEEP
49152:KvbI22SsaNYfdPBldt698dBcjH6PRJ6lbR3LoGdURTHHB72eh2NT:Kvk22SsaNYfdPBldt6+dBcjH6PRJ63
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.1.110:4782
0d395b7f-7b60-4ebb-be44-72f479ba832c
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encryption_key
C8FC0312DB342B523DEF540B55D763B0EC98052C
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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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 Client.exe
Files
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Client.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