Behavioral task
behavioral1
Sample
updater.exe
Resource
win7-20240729-en
General
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Target
updater.exe
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Size
3.3MB
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MD5
247782c8f55790643a8f71e87915f85d
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SHA1
610f1c71c85d5a47fa9e7495dbe7131f194670a3
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SHA256
22d6bb99b130d4ca4ffd7fdb8e1f2660e4bd70a0713ba7cebd0913be4fcd0056
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SHA512
a3b930ed7fb32e7868aee766d2f4e8dad48714df4aed98ac9fa460265f000f4607bb157f196dd85bd907346b342b6f96fa0969e321b88131dc797a25632cc9bd
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SSDEEP
98304:6v462XlaSFNWPjljiFXRoUYIr/RJ60Wrv:MwZYSBW
Malware Config
Extracted
quasar
1.4.1
updater
84.234.19.36:4782
bba70724-e63f-429e-a6db-7272aa6f32e1
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encryption_key
ECC9828BB5C1CB8A0FE0D993AC8183DEA61ACBBC
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install_name
updater.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Updater
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subdirectory
Update_29012025
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 updater.exe
Files
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updater.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: 183KB - Virtual size: 183KB
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