Analysis
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max time kernel
159s -
max time network
67s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
21-10-2022 06:32
Behavioral task
behavioral1
Sample
client.bin.exe
Resource
win7-20220812-en
windows7-x64
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
client.bin.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
15 signatures
150 seconds
General
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Target
client.bin.exe
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Size
144KB
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MD5
f4fdcb900e7af47100ac9e46945fbd55
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SHA1
c1d235a9a2cae8d5a8d4f6ceb4eab9417e1b1fb2
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SHA256
9160b90fa4a6a9cf22f943dba92cec64e2dc03c2317b5d9ab50a753fc410ce43
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SHA512
236eef98d4695a5e1224a87a1dc598639e5c49f6dd192a96cc1b9f8305faa57078deb62d73906a33ba1c1fac4fa5ccc5f344a0f196dbba718b76a36667984ac2
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SSDEEP
3072:Bsp9iv+DYM5ob0HGNSKsstcnZTJQDgWPaySsdH5boWz:Op9iTMSb0mgKFcQjhdH
Score
10/10
Malware Config
Extracted
Family
arrowrat
Botnet
%Group%
C2
%Hosts%:%Ports%
Mutex
%MTX%
Signatures
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Async RAT payload 1 IoCs
resource yara_rule behavioral1/memory/904-54-0x00000000008B0000-0x00000000008DA000-memory.dmp asyncrat -
Modifies Installed Components in the registry 2 TTPs 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Active Setup\Installed Components explorer.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell explorer.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff explorer.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_Classes\Local Settings explorer.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
pid Process 904 client.bin.exe 904 client.bin.exe 904 client.bin.exe 904 client.bin.exe 904 client.bin.exe 904 client.bin.exe 904 client.bin.exe 904 client.bin.exe 904 client.bin.exe 904 client.bin.exe 904 client.bin.exe 904 client.bin.exe 904 client.bin.exe 904 client.bin.exe 904 client.bin.exe 904 client.bin.exe 904 client.bin.exe 904 client.bin.exe 904 client.bin.exe 904 client.bin.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 904 client.bin.exe Token: SeShutdownPrivilege 1648 explorer.exe Token: SeShutdownPrivilege 1648 explorer.exe Token: SeShutdownPrivilege 1648 explorer.exe Token: SeShutdownPrivilege 1648 explorer.exe Token: SeShutdownPrivilege 1648 explorer.exe Token: SeShutdownPrivilege 1648 explorer.exe Token: SeShutdownPrivilege 1648 explorer.exe Token: SeShutdownPrivilege 1648 explorer.exe Token: SeShutdownPrivilege 1648 explorer.exe Token: SeShutdownPrivilege 1648 explorer.exe Token: SeShutdownPrivilege 1648 explorer.exe -
Suspicious use of FindShellTrayWindow 24 IoCs
pid Process 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe -
Suspicious use of SendNotifyMessage 16 IoCs
pid Process 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe 1648 explorer.exe -
Suspicious use of WriteProcessMemory 46 IoCs
description pid Process procid_target PID 904 wrote to memory of 1648 904 client.bin.exe 27 PID 904 wrote to memory of 1648 904 client.bin.exe 27 PID 904 wrote to memory of 1648 904 client.bin.exe 27 PID 904 wrote to memory of 1264 904 client.bin.exe 28 PID 904 wrote to memory of 1264 904 client.bin.exe 28 PID 904 wrote to memory of 1264 904 client.bin.exe 28 PID 904 wrote to memory of 1264 904 client.bin.exe 28 PID 1648 wrote to memory of 2024 1648 explorer.exe 30 PID 1648 wrote to memory of 2024 1648 explorer.exe 30 PID 1648 wrote to memory of 2024 1648 explorer.exe 30 PID 904 wrote to memory of 852 904 client.bin.exe 29 PID 904 wrote to memory of 852 904 client.bin.exe 29 PID 904 wrote to memory of 852 904 client.bin.exe 29 PID 904 wrote to memory of 852 904 client.bin.exe 29 PID 904 wrote to memory of 1676 904 client.bin.exe 31 PID 904 wrote to memory of 1676 904 client.bin.exe 31 PID 904 wrote to memory of 1676 904 client.bin.exe 31 PID 904 wrote to memory of 1676 904 client.bin.exe 31 PID 904 wrote to memory of 268 904 client.bin.exe 32 PID 904 wrote to memory of 268 904 client.bin.exe 32 PID 904 wrote to memory of 268 904 client.bin.exe 32 PID 904 wrote to memory of 268 904 client.bin.exe 32 PID 904 wrote to memory of 708 904 client.bin.exe 33 PID 904 wrote to memory of 708 904 client.bin.exe 33 PID 904 wrote to memory of 708 904 client.bin.exe 33 PID 904 wrote to memory of 708 904 client.bin.exe 33 PID 904 wrote to memory of 1712 904 client.bin.exe 34 PID 904 wrote to memory of 1712 904 client.bin.exe 34 PID 904 wrote to memory of 1712 904 client.bin.exe 34 PID 904 wrote to memory of 1712 904 client.bin.exe 34 PID 904 wrote to memory of 556 904 client.bin.exe 35 PID 904 wrote to memory of 556 904 client.bin.exe 35 PID 904 wrote to memory of 556 904 client.bin.exe 35 PID 904 wrote to memory of 556 904 client.bin.exe 35 PID 904 wrote to memory of 564 904 client.bin.exe 36 PID 904 wrote to memory of 564 904 client.bin.exe 36 PID 904 wrote to memory of 564 904 client.bin.exe 36 PID 904 wrote to memory of 564 904 client.bin.exe 36 PID 904 wrote to memory of 876 904 client.bin.exe 37 PID 904 wrote to memory of 876 904 client.bin.exe 37 PID 904 wrote to memory of 876 904 client.bin.exe 37 PID 904 wrote to memory of 876 904 client.bin.exe 37 PID 904 wrote to memory of 676 904 client.bin.exe 38 PID 904 wrote to memory of 676 904 client.bin.exe 38 PID 904 wrote to memory of 676 904 client.bin.exe 38 PID 904 wrote to memory of 676 904 client.bin.exe 38
Processes
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C:\Users\Admin\AppData\Local\Temp\client.bin.exe"C:\Users\Admin\AppData\Local\Temp\client.bin.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:904 -
C:\Windows\explorer.exe"C:\Windows\explorer.exe"2⤵
- Modifies Installed Components in the registry
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1648 -
C:\Windows\system32\ctfmon.exectfmon.exe3⤵PID:2024
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" %Group% %Hosts% %Ports% %MTX%2⤵PID:1264
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" %Group% %Hosts% %Ports% %MTX%2⤵PID:852
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" %Group% %Hosts% %Ports% %MTX%2⤵PID:1676
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" %Group% %Hosts% %Ports% %MTX%2⤵PID:268
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" %Group% %Hosts% %Ports% %MTX%2⤵PID:708
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" %Group% %Hosts% %Ports% %MTX%2⤵PID:1712
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" %Group% %Hosts% %Ports% %MTX%2⤵PID:556
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" %Group% %Hosts% %Ports% %MTX%2⤵PID:564
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" %Group% %Hosts% %Ports% %MTX%2⤵PID:876
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" %Group% %Hosts% %Ports% %MTX%2⤵PID:676
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