Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win10v2004-20240508-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
ec3f91bf354d94946e524b288ef97c6d
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SHA1
ab2dfc79878a8195f142a18595fd822c2d8d5a7d
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SHA256
5172700366f345593877129c22ae1bed1a597aa9332c2c912da3dc7ff7bd0a9b
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SHA512
7a021563fbcf21c14eac7cd9d43e21272449973dae2d9c6f133170254ecd0e76495a2cb574486d80246b3de7a52adf486ab0ca529ec2d79df57ca1c0534101e9
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SSDEEP
49152:yvbI22SsaNYfdPBldt698dBcjHyARJ6lbR3LoGdrXTHHB72eh2NT:yvk22SsaNYfdPBldt6+dBcjHyARJ63
Malware Config
Extracted
quasar
1.4.1
Office04
37.114.46.114:7676
e0310c76-889c-426f-97d7-5884c55eb219
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encryption_key
759E26EEFA8087EDC8E60DA520B42D33F934A835
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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
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
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_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