General
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Target
Client-built.exe
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Size
3.1MB
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MD5
dfa35006cfafdb58b6bcce0b0e80f6d3
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SHA1
dc7521fcdcfcd2561ecda72bb07566e4c8715280
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SHA256
6ae6f3e962c574f3a10713b66ea0911c62f487b9efe5ae8b89830501b18dfccd
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SHA512
62bda7242a216a3c9ab1a1a241d2ea1f00cb62077b0a1d3fac0681088a5387f2436e22f454d380b437224f5ac2904676c7eb5250b88cff751ed0b699b5a475c2
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SSDEEP
49152:avkt62XlaSFNWPjljiFa2RoUYI9Gvd1J0LoGdzTHHB72eh2NT:av462XlaSFNWPjljiFXRoUYI9GvU
Malware Config
Extracted
quasar
1.4.1
byfron
girl-tries.gl.at.ply.gg:7131
3efcc8e1-a97e-4157-bc36-7a44aca917f4
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encryption_key
DBAD37936F3351524FEE1F8F4322BFD49CA23651
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install_name
byfron.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
byfron
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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
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