Behavioral task
behavioral1
Sample
37FA30C9DCF255BDA62C0A6B7F88A48263A3DA18D18D8.exe
Resource
win7-20240508-en
General
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Target
37FA30C9DCF255BDA62C0A6B7F88A48263A3DA18D18D8.exe
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Size
503KB
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MD5
a760c4263a2d1e144c2fd116bf1351e1
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SHA1
98da7637a98df832078ed0ec08d11d588223783e
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SHA256
37fa30c9dcf255bda62c0a6b7f88a48263a3da18d18d8c66b1cbbc801077cfdf
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SHA512
ee8ff2686a4a95a779711ca3126423f769351de6b9e8a27d0ff0d78212e76ef703ada91778620799dd3dbe07cea840f7f44c65273278ea3b4f539274dbc806bf
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SSDEEP
12288:+TEgdfY97axTU7H4TywQCngRnLN9cHcdA:bUwkyoywQCnkgcdA
Malware Config
Extracted
quasar
1.4.0
BEOBEO
222.253.182.185:9090
b629c3f9-6e84-4b12-aa44-142bd48d26fe
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encryption_key
E3F9325FDCF7CBE474DB678812431E432D3171B2
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install_name
Realtek HD Audio Universal Services.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Realtek
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subdirectory
Realtek HD Audio Universal Services
Signatures
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Quasar family
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Quasar payload 1 IoCs
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource 37FA30C9DCF255BDA62C0A6B7F88A48263A3DA18D18D8.exe
Files
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37FA30C9DCF255BDA62C0A6B7F88A48263A3DA18D18D8.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: 498KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 3KB - Virtual size: 3KB
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