Behavioral task
behavioral1
Sample
c66da9e2a3e32a7b16c561e89623411d329bedb69a9d80f12ebfff7ba94a0e3e.exe
Resource
win7-20240220-en
General
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Target
c66da9e2a3e32a7b16c561e89623411d329bedb69a9d80f12ebfff7ba94a0e3e
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Size
3.1MB
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MD5
f73c79f1b3f1baaf66b5217591617996
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SHA1
7adf50ec4e343c7c890f360041206146bd166807
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SHA256
c66da9e2a3e32a7b16c561e89623411d329bedb69a9d80f12ebfff7ba94a0e3e
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SHA512
5ca6289d009234ce50b4fdbecb2c51898c812b7175af6d7753ffcdfac94c849530b13346b903d8b8f7fad240835c957fda0421fa73e97a1943410da3eb00a426
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SSDEEP
49152:PvFG42pda6D+/PjlLOlg6yQipV5PRJ6ebR3LoGdhTHHB72eh2NT:Pv842pda6D+/PjlLOlZyQipV5PRJ6Y
Malware Config
Extracted
quasar
1.4.1
Office04
10.128.49.236:4783
10.128.49.71:4783
127.0.0.1:4783
eeb9accf-baef-479b-ac89-0eaf9d0c2e80
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encryption_key
7C1BD457B9B162A1B4E9153B6861CCB30916DB14
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
1000
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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 c66da9e2a3e32a7b16c561e89623411d329bedb69a9d80f12ebfff7ba94a0e3e
Files
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c66da9e2a3e32a7b16c561e89623411d329bedb69a9d80f12ebfff7ba94a0e3e.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