General
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Target
aabb.exe
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Size
3.1MB
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MD5
8295dfdc857537c3ecf20b85aae299cc
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SHA1
3a0afcd9e6717d9485eef03b0f025dbac1f36891
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SHA256
644b2903e1c8b5d6b63335e409b1d624e1bdf620de4bacab2d54c0bef69e5dae
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SHA512
6fb6c4d7b122d5c7eb1f05ed938020589c093db5cbae0addcc4c274f383057155aa1f6e9c85840f1a3a3f5fb0996cbfade6f4a124889e105e32cbf194c046936
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SSDEEP
49152:DvcG42pda6D+/PjlLOlg6yQipV/x0qb6jv04Loyd2iTHHB72eh2NT:Dvn42pda6D+/PjlLOlZyQipVb6z
Malware Config
Extracted
quasar
1.4.1
Office04
0.tcp.eu.ngrok.io:15683
tcp.kochambeton.pl:1337
99a331b1-13b5-4e73-be8f-b5c19bd595ef
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encryption_key
E31FE4ECA57A8B089443D8B26651DAD7DB7A12F8
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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
Counter Strike Global Offensive
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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 aabb.exe
Files
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aabb.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