General
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Target
yghjhfdttnuydrn.exe
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Size
3.1MB
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MD5
c4683d3d264c3a2aa2305903dd489658
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SHA1
6e1f617bdb312e460dfdcd8086f97b7ee792d4d4
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SHA256
66ce2cfe8bba297b050a3c2a46930bde05d45eb9be046be857a09dae4b6ac558
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SHA512
fb318b8d786fa0d17ba7c6837e1b0ec912768a32362cd14b7a4204167a8a743f1686c9919ad63ed8afa9fea20cd0997bd346a2bbda81addce355a2d59e6b5e18
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SSDEEP
49152:yvyI22SsaNYfdPBldt698dBcjHVsu3NxKRoGHIwTHHB72eh2NT:yvf22SsaNYfdPBldt6+dBcjHVsCNxA
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.0.9:62767
e51e2b65-e963-4051-9736-67d57ed46798
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encryption_key
AEA258EF65BF1786F0F767C0BE2497ECC304C46F
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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
Quasar Client Startup
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subdirectory
SubDir
Signatures
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Quasar family
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Quasar payload 1 IoCs
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource yghjhfdttnuydrn.exe
Files
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yghjhfdttnuydrn.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