General
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Target
Uni.exe
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Size
355KB
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MD5
13a5f9fb8cd476ed6463723491e49d40
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SHA1
da909a391a557a6600192a16bee768930125de2d
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SHA256
7eab06d9d259f4a5d4808a5c80a21e846e641837830756e413b831b61cbd989f
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SHA512
91b9bbbdc49913463c265ef8dae611a5220897f50a77cc5ab4ccdd05f64cfbf5235f0c7a30a90af298a4790441dd77a195907d52741888fe1e78de9978c2930e
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SSDEEP
6144:oqy6MQkJiLf5SktqvZ3jfC/Ga3VMM0wAxSPu+dRy2qbH+Mwn0CqZV13TG:fMQCiLkktqo/fPbdR/GT3q
Malware Config
Extracted
quasar
3.0.1
Office04
127.0.0.1:4782
QSR_MUTEX_fZ0f3P80rkK2xXy2Xm
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encryption_key
ZnTa5sH85Fw2efMOEWmc
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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 Uni.exe
Files
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Uni.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
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: 347KB - Virtual size: 347KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 6KB - Virtual size: 6KB
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