General
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Target
Bootstrapper (1).rar
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Size
1.0MB
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MD5
d9fa5de22e42d5e461b364ea96726a8f
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SHA1
ac92043326fec3571c9aac956006eed801a6e999
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SHA256
4d1a67cbb466e224e63bb648963c0de048b9fc9af98555a53b663e5e5f3b4695
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SHA512
9b851963034d6eac74e3ddd32dd7649649dde0e90a603ac2abb4b67d6445e002d140a7a0667cc3a7f3ac75c070683846e1749d70c54a1b9a36683b8dabf69942
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SSDEEP
24576:yF7IDE/sWubWgSC211TB3hJ1bWzTgEC6YRlbVFP704XC7J879x:y5XubWgSC+BBwz0EsbrwUqJ877
Malware Config
Extracted
quasar
1.4.1
Office04
wefdwef-34180.portmap.host:34180
c4be1726-3f86-4f80-bc7c-0779b06ffeeb
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encryption_key
97BF1FDCF446A7218FA05296FD8D8F0C41A6B1E7
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install_name
Bootstrapper.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Spotify
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subdirectory
system32
Signatures
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Quasar family
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Quasar payload 1 IoCs
resource yara_rule static1/unpack001/Bootstrapper.exe family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/Bootstrapper.exe
Files
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Bootstrapper (1).rar.rar
Password: 321
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Bootstrapper.exe.exe windows:4 windows x86 arch:x86
Password: 321
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