Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
Client-built.exe
Resource
win10v2004-20231215-en
General
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Target
Client-built.exe
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Size
540KB
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MD5
2c516dac6067054a117deab8c0d36b13
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SHA1
b0b691cf628e428026742aa0fb1814247cf43cea
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SHA256
a3c59ef13cec5540c9b55b8954ca2d8adc5f3cca0dab93eed55579051fa54e87
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SHA512
33c49d166623e8de0033e19ba2000a7ec2b68035c2472c3d317d7857e70f08157e262ea36531b6042d09f4de3244321dbe9da8f08dcd4c87406d44049205c22e
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SSDEEP
6144:JsTjI4aO2YBQ3Sc0jfD5Wz1Vpbio2rEZcslvdK5lSgUUiSqGqStKEbxI2:0I4aO2VCNWz1Vo3czd+zUUXNyEbxZ
Malware Config
Extracted
quasar
3.1.5.0
MicrosoftEdge
common-congratulations.gl.at.ply.gg:65362
127.0.0.1:65362
QSR_MUTEX_MKoa3FQkTUYpcQOoO7
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encryption_key
yjSoTJuDs73xzSVAYSxe
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install_name
MicrosoftEdge.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
MicrosoftEdge
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subdirectory
MicrosoftEdge
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 Client-built.exe
Files
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Client-built.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
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: 410KB - Virtual size: 410KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 128KB - Virtual size: 128KB
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