General
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Target
Client-built.exe
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Size
3.1MB
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MD5
cafaa2094366a156294df6341237e491
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SHA1
49868d99bb2252ce9911f8b6c94015cd87f24b01
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SHA256
9d7cd0429734cb72bc0205287461e459c51cee40f34e5e54513da2315bf8e84a
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SHA512
be176c9d7080b522c8a5dc9d219d47ee71ef507473348825073928142b9e9175287140fce137a5fc16d4d5ec0eb96bcc26bbeacf86dd328f9b5492f66b6af675
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SSDEEP
49152:zvbI22SsaNYfdPBldt698dBcjHKVE7uo+vJgBoGdBTHHB72eh2NT:zvk22SsaNYfdPBldt6+dBcjHqoj
Malware Config
Extracted
quasar
1.4.1
Office04
Waix-40247.portmap.host:40247
9d84e220-c4b7-4f5c-b179-163c03154a8f
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encryption_key
B963B2000CDCB4E83B2966F1E1C703720463EE18
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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