General
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Target
Client-built.exe
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Size
3.1MB
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MD5
c92902dc581aaf9bdea348a9561f3756
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SHA1
98e5f2565ed999491d4c02d71859a08b54eaf743
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SHA256
c79aa5eac7f3e03af96643b9f629b44c7a86206111bc24ef460da84f4b163cd3
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SHA512
2dc63300cdf6ac33511cce8c4ed79062a5e6aebaaab50ff8771bc0e0f4a257b77ffddca227b1779a44d9ebd22da2959afe679b2e2ff845746e6687bd48e58cfa
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SSDEEP
49152:g1RKWt24KvQOLrU2zD1W0cvuejHtbTxtCHHBX2ehJNT8:g1RKWtRKvfnU2n1W0cWe7
Malware Config
Extracted
quasar
1.0.0
slave
materials-sand.gl.at.ply.gg:1967
27a1f412-4ad3-419c-8558-7bec3c5809f6
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encryption_key
526B260ACCBB09E13491B38A151C2539A08C77CC
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install_name
Operation.exe
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log_directory
Logs
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reconnect_delay
1
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startup_key
System
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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