Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240221-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
69310053c471afd15d59e86a65bf8d9f
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SHA1
97811a97d9bee8e5737472f55f1ccfa97c01bc8d
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SHA256
6651ec6dff9d3df79f30b2b59e175f6169efbabd805e19da313be7654e7874b3
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SHA512
fc7dd986cfc597b62a48da0f48191485943702d68aa08a7191c4e5a592a1770801d33447a372a6119fc1bd6580bc19d238d1637824aafb5a04c93e07dee9c018
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SSDEEP
49152:FvlY52fyaSZOrPWluWBuGG5g5hA+/3varSVoGdWBTHHB72eh2NT:Fvy52fyaSZOrPWluWBDG5g5hp3Fm
Malware Config
Extracted
quasar
1.4.1
Office04
127.0.0.1:4040
ccff5d2b-8b09-4307-aa1c-16eec51a02b2
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encryption_key
E1BD3EC68D46CE94607738B70CCE811ABD63A3D7
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install_name
YAYAY.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Update
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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 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