General
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Target
Client-built.exe
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Size
3.4MB
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MD5
27f303501d978618cff2b34c4aef8775
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SHA1
b3fb10b7d695ceb0e69b3fb98f0a8a994e8a0295
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SHA256
7fa5f65326a9afa459e7aac26845734f02bfcb45cc035a0095564104fe10900c
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SHA512
778d397be65188050ef517c06c5f698ef3d115f2d0dffe05a463d72a9b5952bff08a7d51300caffd5db8792b3aa4d62c4864c78dc220cfe0842411b8fe470775
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SSDEEP
98304:Kv462XlaSFNWPjljiFXRoUYIohRJ65gpn5RpW34fW+BxKSWv:8wZYToY0I3BYX
Malware Config
Extracted
quasar
1.4.1
Kecss
192.168.1.93:4782
473115f5-3453-43e9-bc21-df705223cab1
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encryption_key
171BABC024DB8B81031E32E5C02FCD5588448502
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install_name
KarbonDia.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Java Updater
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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: 267KB - Virtual size: 266KB
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