Analysis
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max time kernel
143s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
26/04/2023, 17:25
Static task
static1
Behavioral task
behavioral1
Sample
AsyncRat.exe
Resource
win7-20230220-en
General
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Target
AsyncRat.exe
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Size
2.6MB
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MD5
c210607e74baffc542110c60378fb034
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SHA1
73aa5dfa9a796fc8adc83ddb82375e17ccab28c0
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SHA256
95bab70aa35fa3b403de445c883dcaa84998690ffb54d3a8f9d25a19e5e36f42
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SHA512
6d5c9019728af047a0e904c7d12a7db8af34b00ac289a279af937be47aa38fab077571315b15ae13bc68f8e17bfcd6ae5d779bb988e5887fe8cbbde0e9c50376
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SSDEEP
24576:HUIog50eJ8FmTPCeZ6FW0dHnulKtu1Dze6HDpLtllJz8+iTODtMm8VyRbNvvLDAi:H3b8FmTGmd2OxSHxoZdMK7ajwVwg
Malware Config
Extracted
asyncrat
0.5.7B
Default
15.235.130.74:6606
15.235.130.74:7707
15.235.130.74:8808
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 behavioral2/memory/4864-162-0x0000000000400000-0x0000000000412000-memory.dmp asyncrat -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation AsyncRat.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 5040 set thread context of 4864 5040 AsyncRat.exe 94 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1556 powershell.exe 1556 powershell.exe 5040 AsyncRat.exe 5040 AsyncRat.exe 5040 AsyncRat.exe 5040 AsyncRat.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1556 powershell.exe Token: SeDebugPrivilege 5040 AsyncRat.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 5040 wrote to memory of 1556 5040 AsyncRat.exe 84 PID 5040 wrote to memory of 1556 5040 AsyncRat.exe 84 PID 5040 wrote to memory of 1556 5040 AsyncRat.exe 84 PID 5040 wrote to memory of 4944 5040 AsyncRat.exe 92 PID 5040 wrote to memory of 4944 5040 AsyncRat.exe 92 PID 5040 wrote to memory of 4944 5040 AsyncRat.exe 92 PID 5040 wrote to memory of 1320 5040 AsyncRat.exe 93 PID 5040 wrote to memory of 1320 5040 AsyncRat.exe 93 PID 5040 wrote to memory of 1320 5040 AsyncRat.exe 93 PID 5040 wrote to memory of 4864 5040 AsyncRat.exe 94 PID 5040 wrote to memory of 4864 5040 AsyncRat.exe 94 PID 5040 wrote to memory of 4864 5040 AsyncRat.exe 94 PID 5040 wrote to memory of 4864 5040 AsyncRat.exe 94 PID 5040 wrote to memory of 4864 5040 AsyncRat.exe 94 PID 5040 wrote to memory of 4864 5040 AsyncRat.exe 94 PID 5040 wrote to memory of 4864 5040 AsyncRat.exe 94 PID 5040 wrote to memory of 4864 5040 AsyncRat.exe 94
Processes
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C:\Users\Admin\AppData\Local\Temp\AsyncRat.exe"C:\Users\Admin\AppData\Local\Temp\AsyncRat.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5040 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1556
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C:\Users\Admin\AppData\Local\Temp\AsyncRat.exeC:\Users\Admin\AppData\Local\Temp\AsyncRat.exe2⤵PID:4944
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C:\Users\Admin\AppData\Local\Temp\AsyncRat.exeC:\Users\Admin\AppData\Local\Temp\AsyncRat.exe2⤵PID:1320
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C:\Users\Admin\AppData\Local\Temp\AsyncRat.exeC:\Users\Admin\AppData\Local\Temp\AsyncRat.exe2⤵PID:4864
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD507dff301593b27ca4a2f0aedecd8eab8
SHA1443544108040876b5c291090d6f9a5ff231b8180
SHA25699e3f1c991f3d56f3d3d504ac80f0a1c995ef7a983a425b6701e743f455cf83c
SHA51245bbd2963b6855e8840e43b66f0fc7ea91216c5bd7652a90b0c3db31bded2cdb23713a079231170464b1cd02252f3dd7633efc703e1a2b42e1e2bb4f8102c052
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82