General
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Target
Client-built.exe
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Size
3.1MB
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MD5
dcd0daac1b04b33bc2d506e3d5284315
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SHA1
c22253b23d8940aba947a05603c334b9bba90434
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SHA256
f9d456fe4ef2a8766105901baca30b98ed0915fdb094b1b6ba07f237000e07eb
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SHA512
ee05e546233b4fece0c8962a0d5a2c98e04efa5df0df2e44f65b6eb6783d5abd82d2a649ab5ffd48fc11edded9fe7121ab71a6afa06dd47600c3f39059bc98d2
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SSDEEP
49152:qvKI22SsaNYfdPBldt698dBcjHU0PwoGgaqTHHB72eh2NT:qvn22SsaNYfdPBldt6+dBcjHU0Y
Malware Config
Extracted
quasar
1.4.1
Office04
82.65.100.165:4782
928cdf3a-3032-4b22-91e0-f19a9909e850
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encryption_key
BD45D1FA0A6C09E8103287010069AC867E656C61
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install_name
Steam.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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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