Behavioral task
behavioral1
Sample
EnglishCPTexe.exe
Resource
win7-20231215-en
General
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Target
EnglishCPTexe.exe
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Size
3.2MB
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MD5
5fdd6c98800622f50704162045b762f7
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SHA1
943b9abbde2b34c381c84fef894052caac45d24d
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SHA256
88f244f1882d4be11fb49e7a367cd93d57f2bed658f573b4d51a277822d17840
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SHA512
73d062476ed98e9d7d5466fcf066a95bd9a147cdeb7f6e1986219a15923b6f40f20be19f24509426030d3dee4cf9b06ea89a082eda68353634e1ae85f212fd50
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SSDEEP
49152:FvyI22SsaNYfdPBldt698dBcjHgRRJ6IbR3LoGdewTHHB72eh2NT:Fvf22SsaNYfdPBldt6+dBcjHgRRJ6iu
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.119.128:4782
a5ba3f8c-934a-4695-ae86-264dc2480152
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encryption_key
755AEBE916235914656E5B7950B529FD70F2F039
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install_name
English CPT.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
School Board Connection
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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 EnglishCPTexe.exe
Files
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EnglishCPTexe.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: 109KB - Virtual size: 108KB
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