Behavioral task
behavioral1
Sample
LET.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
LET.exe
Resource
win10v2004-20241007-en
General
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Target
LET.EXE
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Size
175KB
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MD5
c7235b3be7873e0743aba6235cd3d677
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SHA1
2481321813caff4ded19135c86301f899fb19f66
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SHA256
4902c56dfa5b513df7c00f8fe5df90dcc46a03f194dca424ebbf6f03e7904486
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SHA512
7310beb111ca489fd6348d40cea921d8854d99858cb2b9dc7d8211009a8c958374832f585f2cb25962e7ed3a453ca11102b7fb47be0eff8d2a7bc2b564928860
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SSDEEP
3072:r+ljDT+LbaRzegOBIIj6HLLYLCYJqvc1Dvu0gRsBaV/m4IauJX9bSM2dE+rBiQ+t:UDubaBBOBIIj6HLLYLCYJqvc1D2NsBMy
Malware Config
Extracted
asyncrat
Default
127.0.0.1:6606
127.0.0.1:7707
127.0.0.1:8808
https://api.telegram.org/bot7044437613:AAEXeS1SKGTrEjQ8F-7vSegWo8OLABeJY5k/sendMessage?chat_id=6052812018
AsyncMutex_6SI8OkPnk
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delay
3
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install
false
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install_folder
%AppData%
Signatures
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Async RAT payload 1 IoCs
resource yara_rule sample family_asyncrat -
Asyncrat family
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StormKitty payload 1 IoCs
resource yara_rule sample family_stormkitty -
Stormkitty family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource LET.EXE
Files
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LET.EXE.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
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_LARGE_ADDRESS_AWARE
Imports
mscoree
_CorExeMain
Sections
.text Size: 173KB - Virtual size: 172KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 1KB - Virtual size: 1KB
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