Behavioral task
behavioral1
Sample
RuntimeBroker.exe
Resource
win7-20240903-en
General
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Target
RuntimeBroker.exe
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Size
3.1MB
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MD5
f4da021b8bc9d8ef1ff9ce30b0ab3b79
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SHA1
998a833c28617bf3e215fe7a8c3552972da36851
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SHA256
b94aa59b804c08814ac8c7cd538f24d10d68ca30c147ef03a1c57f979ec06545
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SHA512
77e30dfa5d917e0a2467217902b4a75e485f7419e31ea8fe09f6e721d5ba138a68cb354204f79a84e5167b771e3dfb86f182eec647b43dce70ee261b6b7f829c
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SSDEEP
98304:ZvlL26AaNeWgPhlmVqkQ7XSKVcRJ6p3I:Nj4SN43I
Malware Config
Extracted
quasar
1.4.1
Nigga
yzs-42879.portmap.host:42879
57d72303-b5e9-46aa-8cc4-9690809c1a9e
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encryption_key
F1EBDB1862062F9265C0B5AC4D02C76D026534D0
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install_name
RuntimeBroker.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
Temp
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 RuntimeBroker.exe
Files
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RuntimeBroker.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: 2KB - Virtual size: 1KB
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