Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240704-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
33794c237d2b1071e355cee7718a5864
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SHA1
39fedb8d39548676a94a63f66df838338f9952d4
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SHA256
63a6116026ded4e6c7061bbebb6ca2c1b58fdad9c65925328d4250eb3d061eaf
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SHA512
281b834986953e32bc5bcc93c0e9cdd2b9aba31ef1e5ef2c1cd6bdac3fd46bbbc9db2c83dc8471a26a88d77a3abe9b429861be0595a9100f01d0d7cabec70b00
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SSDEEP
49152:NHobtR1o2PmNXo7WCr5f/K0mvhhXrYdzkTHHB72eh2NT:NHmRvmNXo7WCr5f/K0mZR8
Malware Config
Extracted
quasar
1.4.1
Office04
147.185.221.20:18563
147.185.221.20:9835
c2e1b18a-ce93-436d-ad8b-21bf89015e19
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encryption_key
9E968F05BD874BA1BE086FD1774A027473823F49
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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
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
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