General
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Target
Client-built.exe
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Size
502KB
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MD5
17ceecaaa00a2df0802cc8732fd8315b
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SHA1
e310e0e995b69fd545437dd504878c7bad565bd0
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SHA256
8ddf7bb073e0bd49c592266ca4dc9238049ea1806a7d3f420edd4907622e03f8
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SHA512
add2cf2ff24c40b1e859596353b400b6a664440392948d87c0dfea7e4e2fb3b7ae03ced710d2b87ff88b6191f87522d7255298649250b3f726c3340f5c4545cf
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SSDEEP
6144:NTEgdc0YAX7IxUpGREWw1rWZD/FEDgqu1cE8Rb8FziVabeT8cTR3u:NTEgdfY1xUCAgD1s+OVScdu
Malware Config
Extracted
quasar
1.4.0
Office04
127.0.0.1:4782
06ef9adb-d24d-4d85-9cf6-29cb99f6cf63
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encryption_key
511C5AD0820D33900046E6BEDE797C07BE6D2E87
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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
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: 498KB - Virtual size: 497KB
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