General
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Target
Client-built.exe
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Size
3.1MB
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MD5
819ccc52d7fefbd0962da73a9360885b
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SHA1
23134ee19b8193493ac1f064343f9218c6be8218
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SHA256
16b0bf4e024d5548a88eb827ead14cc6f0be62d0ab023ff9d1a21e6c3ea2c230
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SHA512
c0aea9093f1bc90bd987c57a237ca48d571caef87e7831ea704d5005c4b158a947e2f1bab2425008c2783cab2604c436c2c6ab5ee0cb1cb156d412a177c37cb3
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SSDEEP
49152:2vtt62XlaSFNWPjljiFa2RoUYIhXxNESEuk/iwLoGdYSTHHB72eh2NT:2vP62XlaSFNWPjljiFXRoUYINxhOI
Malware Config
Extracted
quasar
1.4.1
Office04
89.244.81.23:4782
2133a993-dae1-49b1-bfbb-4f8e5a998e93
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encryption_key
667A5A03028317A85A6DC653E03053EE04F364BC
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
1000
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startup_key
Discord
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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