Behavioral task
behavioral1
Sample
ChaseExecutor.exe
Resource
win7-20240903-en
General
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Target
ChaseExecutor.exe
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Size
3.1MB
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MD5
6a633f6792d81f1b52a9d04f1c7fb584
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SHA1
7c077085a3f4c9e510ff3815e095e75aa69d077d
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SHA256
e0a43dba9d96bd4bea5e0959b573e9caa60f44f4c1d377f080209ce5426f1469
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SHA512
a8911cc762d85e95287e80ddabce3aed06b9593281f9c80a211fb45040066d49e378ad933a944b20a3fb52c19a7eae9c21f80e638f9de9806fa05cd71be31e6e
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SSDEEP
49152:TvelL26AaNeWgPhlmVqvMQ7XSKaYRJ6jbR3LoGdrTHHB72eh2NT:TvOL26AaNeWgPhlmVqkQ7XSKaYRJ6V
Malware Config
Extracted
quasar
1.4.1
Chase
ImperialJacob-48308.portmap.host:48308:5372
44720989-3429-4fd4-b774-316668e9f644
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encryption_key
4390F2ADFFDBDE200EC5AEC1BC24C28ABB3A44AA
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install_name
GalaxyOptimizer.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
‽
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subdirectory
GalaxyOptimizer
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 ChaseExecutor.exe
Files
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ChaseExecutor.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