General
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Target
Client-built.exe
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Size
3.1MB
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MD5
8ae4f092d83c903d9e630519d8847046
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SHA1
c9b9a33a8293832796b2819f80830f818e34c348
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SHA256
1e31443af98adeae5c4f5310f481a1ed0d1b9c1b530f887a2a4714616992647b
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SHA512
a7286c334ff044adf423a889adf5c08c78ae3906b895c7db12207074c86b9e615391e6a8ac3ef8653fb4a1395d2c401a37dcbb5bd65692c0fc6db08b7e7ed841
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SSDEEP
49152:zv+lL26AaNeWgPhlmVqvMQ7XSKjSCJ1J3LoGdDTHHB72eh2NT:zvuL26AaNeWgPhlmVqkQ7XSKmCB
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.56.1:4782
192.168.1.93:4782
e9b5a8e3-2ffb-4d65-856a-8802f3e906e2
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encryption_key
171BABC024DB8B81031E32E5C02FCD5588448502
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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-built.exe
Files
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Client-built.exe.exe windows:4 windows x86 arch:x86
Password: afe34
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