General
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Target
test.exe
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Size
348KB
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MD5
2f671e7ebc050b4f024988ef32316937
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SHA1
73a69d7d9ed1c8a63d626edf59702b470d2d6650
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SHA256
25f2d280e685bf93f437553620a4b4e89d362205af34c22263bcd6bb33386fe3
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SHA512
86f0a286e39040a86504c306f9587e840d8ea74bfaaaee5105f0689434b4e433ab5c30032077a8e3e7eae697a65ebae3a09001434a31f9ac5863c323d2d7d7be
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SSDEEP
3072:hjrN+Jhi1vwWdCqLlpyDcsvPBsPJ+bgCr8a8JLEThlbVBD5JVWt8nwU69r4rUYT1:hHUhIvTCqLyR0LtUbPdv69r4rUYTMm
Malware Config
Extracted
quasar
1.3.0.0
Office04
127.0.0.1:4782
QSR_MUTEX_n0f6at7YDD5llBKKrq
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encryption_key
WTfCCpEEZrrjQU0Hwnaj
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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
csrss.exe
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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 test.exe
Files
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test.exe.exe windows:4 windows x86 arch:x86
Password: infected
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: 344KB - Virtual size: 344KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 2KB - 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