Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20220901-en
General
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Target
Client-built.exe
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Size
502KB
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MD5
ceacd902b7dad72ed6e3f1b1054e77e8
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SHA1
41374fa37c21a6c48cfe0360cffd81ee27b9bd40
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SHA256
81783a7aa42834a85f7142386273f6b3cc2acd55e6dedea198b4023f316a8218
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SHA512
1adc394b0afd90ba66c7e42f2c976f2f9ae305dd4af39c9579d12f7be66972d44a9cdb3445cd7eb58eb37d9bc6584e9435fa93620197ecd0fc7f75f85b3e7b33
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SSDEEP
6144:BTEgdc0YiXAGbgiIN2RSBNxd3257GEsnN2KuB7zHclcEXsb8Fq4LUcTR3i:BTEgdfYYbgasMTcn35LUcdi
Malware Config
Extracted
quasar
1.4.0
Test
127.0.01:4782
3c93bd68-91da-48ba-90d3-265501324f8e
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encryption_key
486F8A76DDFE6F4174CDA20FEA17E7976647553B
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install_name
Microsoft Defender.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Microsoft Defender
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subdirectory
windowes
Signatures
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Quasar family
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Quasar payload 1 IoCs
resource yara_rule sample family_quasar
Files
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Client-built.exe.exe windows x86
Password: possibleback
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: 498KB - Virtual size: 497KB
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