Behavioral task
behavioral1
Sample
Server.exe
Resource
win7-20230220-en
General
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Target
Server.exe
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Size
175KB
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MD5
f17cbcf0106d8b21ffafad25f0378a40
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SHA1
ab622cb14f27231f897d145f396ea84b6032f329
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SHA256
40fc53c469a44a2d699f3e4e7a72c71e4c667d89988e234e24358cdaf107b2d7
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SHA512
c762eabd8d081320ae10fa2dac9ab9aa050ddc855dff26f2ca0e1318112438ce62e7e038dc7ac6773732a414ffd6fbd453aa97bbb31595afc507733a6741159f
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SSDEEP
3072:7e8oX8Sb5KcXrtkkXmf/bDsvqtU+lLToChAP0UZ0b2gTewAqE+Wpor:mXtb5KcXr7XmfgqtjhAxZ0b2D
Malware Config
Extracted
asyncrat
Default
127.0.0.1:6606
127.0.0.1:7707
127.0.0.1:8808
https://api.telegram.org/bot6233379490:AAFcJwp1PoTus6nSbmrvxY3xNfvyZvm2w3c/sendMessage?chat_id=5471630718
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 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 Server.exe
Files
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Server.exe.exe windows 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_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 172KB - 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