Behavioral task
behavioral1
Sample
Stub_5889.exe
Resource
win7-20240704-en
General
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Target
Stub_5889.exe
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Size
3.2MB
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MD5
f132a642eb92de80f7ac1ae4e0385265
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SHA1
c805619e40bc6a23b0d27dd1cf7a3fa2b5c90e05
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SHA256
49786936f3b4b3f87d22360f1d120b6ad1ca6220c1c4819796873cc8411ae497
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SHA512
2344eea6f80e5ea76922e07461a22af13ef0434d8218dad21cdcb40f9192cb2355dba6855034b672b5754dab9a3213b2ce0c9d25191e474a997877c3316a4d85
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SSDEEP
49152:Ib970vB+y1g0cVBYKegC0NWl5DZcj0Wdkrk72e8z9SOTHHB72eh2NT:Ib9705+Z0cVBY/DZcj0Wdx7q
Malware Config
Extracted
quasar
1.4.1
Test
147.185.221.22:20094
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_5889.exe
Files
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Stub_5889.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