Analysis
- max time kernel
150s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20230703-en - resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system - submitted
22/08/2023, 01:47
Behavioral task
behavioral1
Sample
d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe
Resource
win7-20230712-en
7 signatures
150 seconds
General
- Target d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe
- Size 48KB
- Sample230822-b71deaba8s
- SHA256 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc
- MD5 ac1f2fe1cd36ff5c4c6bfea58a6a3959
- SHA1 8a6290c066c99a68bceaa16200c70c344e0f2f7d
- SHA512 68bc0f18988162a819995a5c291739e09092cb8e22e040c9b5983cada9703d9e865ff0790b940ecda5e77520eabdff97e16fd9f9f4036cfb922558048e9fe3c4
- SSDEEP 768:kyF603LoILkWAt+jiiLFxh63BOih8YbIgeyVrLcys1NfvEgK/JHZVc6KN:kyF6RtiRxkhzbftVrZs1NfnkJHZVclN
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
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asyncrat
Version
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1.0.7
Botnet
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Default
C2
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127.0.0.1:8848
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127.0.0.1:8858
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thwit.ddns.net:8848
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thwit.ddns.net:8858
Mutex
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DcRatMutex_qwqdnachun
Attributes
-
delay
1
-
install
true
-
install_file
..\..\..\..\tmp\StartService.exe
-
install_folder
%AppData%
aes.plain
Signatures
- Async RAT payload 1 IoCs
resource yara_rule behavioral2/memory/1384-133-0x00000000002F0000-0x0000000000302000-memory.dmp asyncrat - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3968 schtasks.exe - Suspicious behavior: EnumeratesProcesses 23 IoCs
pid Process 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1384 wrote to memory of 4760 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 83 PID 1384 wrote to memory of 4760 1384 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe 83 PID 4760 wrote to memory of 3968 4760 cmd.exe 84 PID 4760 wrote to memory of 3968 4760 cmd.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe"C:\Users\Admin\AppData\Local\Temp\d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1384 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "StartService" /tr '"C:\tmp\StartService.exe"' & exit2⤵
- Suspicious use of WriteProcessMemory
PID:4760 -
C:\Windows\system32\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "StartService" /tr '"C:\tmp\StartService.exe"'3⤵
- Creates scheduled task(s)
PID:3968
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-