asyncrat | 35330f1bbbc0f361845b9b987e2f4ac70cdb96ab3f9e80161c2b8971c7df0df4

Analysis

max time kernel
93s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
27/02/2023, 21:55

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General

Target
tmp.exe
Size 354KB
Sample230227-1swt4sff9z
SHA256 35330f1bbbc0f361845b9b987e2f4ac70cdb96ab3f9e80161c2b8971c7df0df4
MD5 91a442b21fb353b221ea33e767c7fe1b
SHA1 e58e0d08ebdc5e91f43631b339c573a732c07056
SHA512 262ef3d9577dacde7ad613fe858073b347d21a553961c63f6f64c9dd593fc610dc2bb04ab84b6cf2a4c9347e3795d825690bdb412d19e89fe380da5bd4009f58
SSDEEP 6144:ozh88dY9m16JNcxnDggHNrRP5fw2fTt+iMaNOSm3lVVCT4kH/7zppTR:o18fCcaxdPhHTANaYSIlHCT4k/9
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

asyncrat default persistence rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.1

Botnet

Default

127.0.0.1:4449
91.134.187.20:4449

Mutex

mhtuxtjimxsu

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

resource	yara_rule
behavioral2/memory/3324-136-0x0000000000400000-0x0000000000418000-memory.dmp	asyncrat

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\TaskKill\ImagePath = "\\??\\C:\\Users\\Admin\\AppData\\Local\\Temp\\Иисус.sys"	tmp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 848 set thread context of 3324	848	tmp.exe	103

Suspicious behavior: EnumeratesProcesses 42 IoCs

pid	Process
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
848	tmp.exe
3324	AddInProcess32.exe
3324	AddInProcess32.exe
3324	AddInProcess32.exe
3324	AddInProcess32.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
848	tmp.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	848	tmp.exe
Token: SeLoadDriverPrivilege	848	tmp.exe
Token: SeDebugPrivilege	848	tmp.exe
Token: SeDebugPrivilege	3324	AddInProcess32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3324	AddInProcess32.exe

Suspicious use of WriteProcessMemory 46 IoCs

description	pid	Process	procid_target
PID 848 wrote to memory of 3640	848	tmp.exe	84
PID 848 wrote to memory of 3640	848	tmp.exe	84
PID 848 wrote to memory of 4468	848	tmp.exe	85
PID 848 wrote to memory of 4468	848	tmp.exe	85
PID 848 wrote to memory of 5116	848	tmp.exe	86
PID 848 wrote to memory of 5116	848	tmp.exe	86
PID 848 wrote to memory of 4224	848	tmp.exe	87
PID 848 wrote to memory of 4224	848	tmp.exe	87
PID 848 wrote to memory of 4968	848	tmp.exe	88
PID 848 wrote to memory of 4968	848	tmp.exe	88
PID 848 wrote to memory of 5104	848	tmp.exe	89
PID 848 wrote to memory of 5104	848	tmp.exe	89
PID 848 wrote to memory of 5036	848	tmp.exe	90
PID 848 wrote to memory of 5036	848	tmp.exe	90
PID 848 wrote to memory of 1240	848	tmp.exe	91
PID 848 wrote to memory of 1240	848	tmp.exe	91
PID 848 wrote to memory of 3764	848	tmp.exe	92
PID 848 wrote to memory of 3764	848	tmp.exe	92
PID 848 wrote to memory of 2920	848	tmp.exe	93
PID 848 wrote to memory of 2920	848	tmp.exe	93
PID 848 wrote to memory of 1940	848	tmp.exe	94
PID 848 wrote to memory of 1940	848	tmp.exe	94
PID 848 wrote to memory of 2376	848	tmp.exe	95
PID 848 wrote to memory of 2376	848	tmp.exe	95
PID 848 wrote to memory of 2808	848	tmp.exe	96
PID 848 wrote to memory of 2808	848	tmp.exe	96
PID 848 wrote to memory of 1716	848	tmp.exe	97
PID 848 wrote to memory of 1716	848	tmp.exe	97
PID 848 wrote to memory of 1052	848	tmp.exe	98
PID 848 wrote to memory of 1052	848	tmp.exe	98
PID 848 wrote to memory of 1248	848	tmp.exe	99
PID 848 wrote to memory of 1248	848	tmp.exe	99
PID 848 wrote to memory of 4820	848	tmp.exe	100
PID 848 wrote to memory of 4820	848	tmp.exe	100
PID 848 wrote to memory of 3984	848	tmp.exe	101
PID 848 wrote to memory of 3984	848	tmp.exe	101
PID 848 wrote to memory of 3036	848	tmp.exe	102
PID 848 wrote to memory of 3036	848	tmp.exe	102
PID 848 wrote to memory of 3324	848	tmp.exe	103
PID 848 wrote to memory of 3324	848	tmp.exe	103
PID 848 wrote to memory of 3324	848	tmp.exe	103
PID 848 wrote to memory of 3324	848	tmp.exe	103
PID 848 wrote to memory of 3324	848	tmp.exe	103
PID 848 wrote to memory of 3324	848	tmp.exe	103
PID 848 wrote to memory of 3324	848	tmp.exe	103
PID 848 wrote to memory of 3324	848	tmp.exe	103

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Sets service image path in registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:848
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:3640
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\WsatConfig.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\WsatConfig.exe"
  2⤵
  PID:4468
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.exe"
  2⤵
  PID:5116
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\DataSvcUtil.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\DataSvcUtil.exe"
  2⤵
  PID:4224
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe"
  2⤵
  PID:4968
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis.exe"
  2⤵
  PID:5104
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_state.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_state.exe"
  2⤵
  PID:5036
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_regbrowsers.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_regbrowsers.exe"
  2⤵
  PID:1240
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe"
  2⤵
  PID:3764
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\EdmGen.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\EdmGen.exe"
  2⤵
  PID:2920
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe"
  2⤵
  PID:1940
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\mscorsvw.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\mscorsvw.exe"
  2⤵
  PID:2376
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_wp.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_wp.exe"
  2⤵
  PID:2808
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngentask.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngentask.exe"
  2⤵
  PID:1716
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_regsql.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_regsql.exe"
  2⤵
  PID:1052
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ComSvcConfig.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ComSvcConfig.exe"
  2⤵
  PID:1248
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:4820
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\CasPol.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\CasPol.exe"
  2⤵
  PID:3984
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\dfsvc.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\dfsvc.exe"
  2⤵
  PID:3036
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\AddInProcess32.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3324

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/848-133-0x00000284E6580000-0x00000284E65DE000-memory.dmp

Download

memory/848-134-0x00000284E8380000-0x00000284E8390000-memory.dmp

Download

memory/3324-136-0x0000000000400000-0x0000000000418000-memory.dmp

Download

memory/3324-138-0x0000000006120000-0x00000000066C4000-memory.dmp

Download

memory/3324-140-0x0000000005B60000-0x0000000005B70000-memory.dmp

Download

memory/3324-141-0x0000000005E10000-0x0000000005EA2000-memory.dmp

Download

memory/3324-142-0x0000000005D70000-0x0000000005D7A000-memory.dmp

Download

memory/3324-143-0x0000000006AB0000-0x0000000006B4C000-memory.dmp

Download

memory/3324-144-0x0000000006B50000-0x0000000006BB6000-memory.dmp

Download

memory/3324-146-0x0000000005B60000-0x0000000005B70000-memory.dmp

Download

memory/3324-147-0x0000000005B60000-0x0000000005B70000-memory.dmp

Download