asyncrat | 0e43ddda43c57d175c94fb57d1e8501d27d8c54c02c5ebba43f01516eadeec3c

Analysis

max time kernel
136s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 02:10

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General

Target

Payment-Order #24560274 for 8,380 USD.exe
Size

392KB
MD5

eac2017286abefbd21b28e7f9fcab248
SHA1

02f90ba750bf3801e286ecfbf3467110f8b2ef94
SHA256

e8f6dc455cea42a08feb8fcf5a34928864d537ec5ec905576cee58c9fabd6a5f
SHA512

fa0a14b1bfce0fac1bbb1488f319dd864b9a94e784a6a637907d3bd31dddb80043de71ee582def13e72b9a4c2490c1738fa8d676feb3bc519d26bc75936db48b
SSDEEP

12288:OaoO2yd67Jss86xlfLfC7hgooOK6YQMhUZC9WpVyi:OnV8gooOeQtrl

Score

10^/10

asyncrat default discovery evasion execution rat trojan

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

91.223.3.156:7707

91.223.3.156:8808

Mutex

TcNC0kSWrpnZ

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

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

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Payment-Order #24560274 for 8,380 USD.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2684	powershell.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Payment-Order #24560274 for 8,380 USD.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Payment-Order #24560274 for 8,380 USD.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1344 set thread context of 2504	1344	Payment-Order #24560274 for 8,380 USD.exe	33

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AddInProcess32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2684	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2684	powershell.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 1344 wrote to memory of 2684	1344	Payment-Order #24560274 for 8,380 USD.exe	28
PID 1344 wrote to memory of 2684	1344	Payment-Order #24560274 for 8,380 USD.exe	28
PID 1344 wrote to memory of 2684	1344	Payment-Order #24560274 for 8,380 USD.exe	28
PID 1344 wrote to memory of 2584	1344	Payment-Order #24560274 for 8,380 USD.exe	30
PID 1344 wrote to memory of 2584	1344	Payment-Order #24560274 for 8,380 USD.exe	30
PID 1344 wrote to memory of 2584	1344	Payment-Order #24560274 for 8,380 USD.exe	30
PID 1344 wrote to memory of 2584	1344	Payment-Order #24560274 for 8,380 USD.exe	30
PID 1344 wrote to memory of 2700	1344	Payment-Order #24560274 for 8,380 USD.exe	31
PID 1344 wrote to memory of 2700	1344	Payment-Order #24560274 for 8,380 USD.exe	31
PID 1344 wrote to memory of 2700	1344	Payment-Order #24560274 for 8,380 USD.exe	31
PID 1344 wrote to memory of 2700	1344	Payment-Order #24560274 for 8,380 USD.exe	31
PID 1344 wrote to memory of 2636	1344	Payment-Order #24560274 for 8,380 USD.exe	32
PID 1344 wrote to memory of 2636	1344	Payment-Order #24560274 for 8,380 USD.exe	32
PID 1344 wrote to memory of 2636	1344	Payment-Order #24560274 for 8,380 USD.exe	32
PID 1344 wrote to memory of 2636	1344	Payment-Order #24560274 for 8,380 USD.exe	32
PID 1344 wrote to memory of 2636	1344	Payment-Order #24560274 for 8,380 USD.exe	32
PID 1344 wrote to memory of 2636	1344	Payment-Order #24560274 for 8,380 USD.exe	32
PID 1344 wrote to memory of 2636	1344	Payment-Order #24560274 for 8,380 USD.exe	32
PID 1344 wrote to memory of 2636	1344	Payment-Order #24560274 for 8,380 USD.exe	32
PID 1344 wrote to memory of 2504	1344	Payment-Order #24560274 for 8,380 USD.exe	33
PID 1344 wrote to memory of 2504	1344	Payment-Order #24560274 for 8,380 USD.exe	33
PID 1344 wrote to memory of 2504	1344	Payment-Order #24560274 for 8,380 USD.exe	33
PID 1344 wrote to memory of 2504	1344	Payment-Order #24560274 for 8,380 USD.exe	33
PID 1344 wrote to memory of 2504	1344	Payment-Order #24560274 for 8,380 USD.exe	33
PID 1344 wrote to memory of 2504	1344	Payment-Order #24560274 for 8,380 USD.exe	33
PID 1344 wrote to memory of 2504	1344	Payment-Order #24560274 for 8,380 USD.exe	33
PID 1344 wrote to memory of 2504	1344	Payment-Order #24560274 for 8,380 USD.exe	33
PID 1344 wrote to memory of 2504	1344	Payment-Order #24560274 for 8,380 USD.exe	33
PID 1344 wrote to memory of 2476	1344	Payment-Order #24560274 for 8,380 USD.exe	34
PID 1344 wrote to memory of 2476	1344	Payment-Order #24560274 for 8,380 USD.exe	34
PID 1344 wrote to memory of 2476	1344	Payment-Order #24560274 for 8,380 USD.exe	34
PID 1344 wrote to memory of 2476	1344	Payment-Order #24560274 for 8,380 USD.exe	34

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Payment-Order #24560274 for 8,380 USD.exe

C:\Users\Admin\AppData\Local\Temp\Payment-Order #24560274 for 8,380 USD.exe
"C:\Users\Admin\AppData\Local\Temp\Payment-Order #24560274 for 8,380 USD.exe"
1⤵
- UAC bypass
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1344
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Payment-Order #24560274 for 8,380 USD.exe" -Force
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2684
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
  2⤵
  PID:2584
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
  2⤵
  PID:2700
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"
  2⤵
  PID:2636
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2504
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  PID:2476

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1344-1-0x0000000000190000-0x00000000001F4000-memory.dmp

Filesize
400KB

Download
memory/1344-2-0x0000000000580000-0x00000000005E4000-memory.dmp

Filesize
400KB

Download
memory/1344-3-0x000007FEF6360000-0x000007FEF6D4C000-memory.dmp

Filesize
9.9MB

Download
memory/1344-31-0x000007FEF6360000-0x000007FEF6D4C000-memory.dmp

Filesize
9.9MB

Download
memory/1344-0-0x000007FEF6363000-0x000007FEF6364000-memory.dmp

Filesize
4KB

Download
memory/2504-30-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2504-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2504-28-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2504-29-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2636-17-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2636-11-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2636-15-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2636-13-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2684-10-0x00000000023A0000-0x00000000023A8000-memory.dmp

Filesize
32KB

Download
memory/2684-9-0x000000001B5B0000-0x000000001B892000-memory.dmp

Filesize
2.9MB

Download
memory/2684-8-0x0000000002930000-0x00000000029B0000-memory.dmp

Filesize
512KB

Download