General
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Target
Client-built.exe
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Size
3.1MB
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MD5
2c2744769214c1fb7dbfaab0899faa2e
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SHA1
891b19df40e3bd50ced307779f2770c7b82125b1
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SHA256
c8ebab297901040ef62bb8b91d6596bdbf59c22f9f6218a542c7c81857d0e90b
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SHA512
62a4baf36859aba9396f3f223f387ef7d98511dd6833cdc61bc93db68f1fe6984d2c66ad5d764bd220ef6dea36ad14763b721425ee6560bdfdcfaadc672bfcd5
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SSDEEP
49152:avKI22SsaNYfdPBldt698dBcjHDlT/qBxdroGdhTHHB72eh2NT:avn22SsaNYfdPBldt6+dBcjH1/w
Malware Config
Extracted
quasar
1.4.1
Office04
10.2.0.2:4782
192.168.1.32:4782
cc6f57e2-b224-4b7b-bfae-0b1e6f95f22f
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encryption_key
48E15FD52A3A24CE1F767DA2AD76CB0B862CC879
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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
Solara
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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 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