Behavioral task
behavioral1
Sample
4d3570b47aa54653c383105500047551de5457e05a1d58ed341bfc43c279bcf0exe_JC.exe
Resource
win7-20230831-en
General
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Target
4d3570b47aa54653c383105500047551de5457e05a1d58ed341bfc43c279bcf0exe_JC.exe
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Size
3.1MB
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MD5
a68021631c71d0a33aaf605de9b2a64a
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SHA1
a0dee572bb0dd6b71faafc7b43a2946113a67f6d
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SHA256
4d3570b47aa54653c383105500047551de5457e05a1d58ed341bfc43c279bcf0
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SHA512
760b0ac5571583da4f2836b70cec41eb9d61850d75f6f404abbfc4afec31c81b8f9071091c4534652dc7270a0e2b916043a9391b9dbc2582f4b2c0d3770c35e4
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SSDEEP
49152:HvyI22SsaNYfdPBldt698dBcjHD6FFoGBKlUTHHB72eh2NT:Hvf22SsaNYfdPBldt6+dBcjHD6D
Malware Config
Extracted
quasar
1.4.1
ABBA
72.18.130.237:7321
679ea829-cf42-4e9c-97a1-58411c2e0617
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encryption_key
EAB4034DBBDD510051D9D34D60A8DB173C15B207
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install_name
Update.exe
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log_directory
Task
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reconnect_delay
3000
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startup_key
MicrosoftUpdate.exe
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subdirectory
MicroServer
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 4d3570b47aa54653c383105500047551de5457e05a1d58ed341bfc43c279bcf0exe_JC.exe
Files
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4d3570b47aa54653c383105500047551de5457e05a1d58ed341bfc43c279bcf0exe_JC.exe.exe windows:4 windows 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