General
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Target
Client-built.exe
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Size
3.1MB
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MD5
0a3d7ebd1e5534c5ec22eaf4b4d0648a
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SHA1
f7e933ddcded5545c2b88b2540b70692957a638e
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SHA256
74935a8db3e705f4cccf6eb532d21450bd02ac3eb84fff594ef7f58200d50cff
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SHA512
1ab746fb904c922d480cc0ebf0e6c0c2b52bca5fae9ae61aca5e232684505c45cfb179bd58bc25d7ac4a1c92626571b897edf1fbcedcc0882186c5f1929c1c36
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SSDEEP
49152:PvOI22SsaNYfdPBldt698dBcjHaCfnoGHS/THHB72eh2NT:Pvj22SsaNYfdPBldt6+dBcjHaCf
Malware Config
Extracted
quasar
1.4.1
Office04
009485087BB9285235E7887649730F51:4782
1c0db117-3041-4330-8f59-8360447f5a91
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encryption_key
5A8FC6038DDFC531FE0BDF4518A22E47BB6FDBCA
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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
apples
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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