Behavioral task
behavioral1
Sample
Stub_8028.exe
Resource
win7-20240708-en
General
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Target
Stub_8028.exe
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Size
3.2MB
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MD5
b2bd95f3e55d343cca8ca0928dd125ad
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SHA1
597734915e6f60960f0f4954cd91060cf1c233a5
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SHA256
236445cb38a779d1b737583a28a5e64784c81b582cc055c41da7ecf868c4c870
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SHA512
43fea27d7d956e0233d08b9a4bdd7dd03f133f755c66f31c6f1e8f92d4fa809092c13b962ed055a049496d164c0f1e889d630b93b9cfc398f0b6ffd7469f2b9f
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SSDEEP
49152:B+AWFBHHc3Qf5zAznNeS2RwmT7mJPJz9cOTHHB72eh2NT:B+lraNeS2WmHmJB
Malware Config
Extracted
quasar
1.4.1
Test
147.185.221.22:13676
aaf4767c-dd88-4c3f-9683-69a87558c907
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encryption_key
9E968F05BD874BA1BE086FD1774A027473823F49
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install_name
Windows Host Process.exe
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log_directory
Windows-Logs
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reconnect_delay
3000
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startup_key
Windows Host Process
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subdirectory
Jerk
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 Stub_8028.exe
Files
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Stub_8028.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: 3.2MB - Virtual size: 3.2MB
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