Behavioral task
behavioral1
Sample
Loader.exe
Resource
win10-20240611-en
General
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Target
Loader.exe
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Size
3.1MB
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MD5
71fce84b3e3af2af448930f5e6c57dfe
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SHA1
d504cf7d4f37454fc11ab56f304def9a24119c81
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SHA256
6c7fd107dce2880c6841677b15f95c1fd2a3ccac9f5be007107075f606f54b34
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SHA512
b9751cccd92393262c58a91e13fa062b0c38a666cffb19bdfe1f95630041479872851841d7423a977853af3f643cee25331fa10c95c71835aac6b36b09fcf2a5
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SSDEEP
49152:5HobtR1o2PmNXo7WCr5nO9DvKvrYdgTHHB72eh2NT:5HmRvmNXo7WCr5O9Di
Malware Config
Extracted
quasar
1.4.1
IrisLoader
147.185.221.18:42996
147.185.221.18:1770
9ddbf7fe-160a-423f-af8b-9cc2c3be4fa1
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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
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Loader.exe
Files
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Loader.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