General
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Target
Client-built.exe
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Size
3.1MB
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MD5
9f21520eef3c9de8b7e3ef6d031c97d3
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SHA1
06cfbdb076b384aa27e3a663012a032e116ea30c
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SHA256
f662ec11f175b9a5c5a14819cc1e3339d111ed15a4ea5d56ef445c14ab3f5635
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SHA512
949105580c335071c9ac5b2c8296825969fba995a605c29f5f95a132e07214d7dfc2f0f683d513a0347518001c46dcaec5a616a731c7e4c65383f45444d3e2fb
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SSDEEP
49152:Wvkt62XlaSFNWPjljiFa2RoUYI43xNESErk/i2LoGdXFTHHB72eh2NT:Wv462XlaSFNWPjljiFXRoUYIMxW4
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.86.70:4782
c1c98204-fc6e-4e09-8c36-98234ec63629
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encryption_key
4094E5945398B89DBE9DB455B39CBB4AF82FE324
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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
Rooblox
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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