General
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Target
Client-built.exe
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Size
3.1MB
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MD5
43ba56942448efaf6200c561be3aa4cd
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SHA1
26a8f505a3e1aee989c56b35cef729fc77b1c028
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SHA256
629d5525bebd5ed6d37a8c75e3c326647f9f8d5420e5b0a43dfade7563cc4024
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SHA512
59e0b28de0ca1d67a3654e84235222ab64f5a9f4818db32c5ee51e2270a2a9c954f64d4714a8040ada194c04a36d8ba6fa8d55296e297160cdc1e9f3fe976dfe
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SSDEEP
49152:6vsG42pda6D+/PjlLOlg6yQipV9fBtIBxwMoGdaYTHHB72eh2NT:6v342pda6D+/PjlLOlZyQipVLtg
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.178.56:4782
tcp://5.tcp.eu.ngrok.io:13134:7771
0552115c-2459-453f-980d-c60aebb9957e
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encryption_key
1DEED326568BA39A5A6D6473414A146E2A7F5724
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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: 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