asyncrat | 6e7ff182d4509ea804b6ed739ffa2191af2891af164ede9a90e79aea8fee4d1f

General

Target

Report.ps1
Size

458KB
MD5

20d2c488f9ce3e337faf20ea1a9abe47
SHA1

ea844520e903e1f7d8f234a057cd3cc778380ae9
SHA256

6e7ff182d4509ea804b6ed739ffa2191af2891af164ede9a90e79aea8fee4d1f
SHA512

6581df037579fd6684ee4a44d2e631a4aa9c524b47c47fe2afb9434c487824146fb000d9c7a7b63df6c534b00f4a979f24be88019b3ed12d9bf3ce81508b243c
SSDEEP

768:llcMsNARzF0NToMotYJKN2C0FIMG9Kl/2:6/2

Score

10^/10

asyncrat default discovery execution rat

Malware Config

Extracted

Family

asyncrat

Version

A 14

Botnet

Default

C2

nams.ddnsfree.com:409

aliomar.ooguy.com:409

Mutex

MaterxMutex_Egypt409

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1640 set thread context of 2640	1640	powershell.exe	90

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1640	powershell.exe

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	aspnet_compiler.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2640	aspnet_compiler.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1640	powershell.exe
1640	powershell.exe
2640	aspnet_compiler.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1640	powershell.exe
Token: SeDebugPrivilege	2640	aspnet_compiler.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2640	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1640 wrote to memory of 2640	1640	powershell.exe	90
PID 1640 wrote to memory of 2640	1640	powershell.exe	90
PID 1640 wrote to memory of 2640	1640	powershell.exe	90
PID 1640 wrote to memory of 2640	1640	powershell.exe	90
PID 1640 wrote to memory of 2640	1640	powershell.exe	90
PID 1640 wrote to memory of 2640	1640	powershell.exe	90
PID 1640 wrote to memory of 2640	1640	powershell.exe	90
PID 1640 wrote to memory of 2640	1640	powershell.exe	90
PID 1640 wrote to memory of 2984	1640	powershell.exe	91
PID 1640 wrote to memory of 2984	1640	powershell.exe	91

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\Report.ps1
1⤵
- Suspicious use of SetThreadContext
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1640
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2640
- C:\Windows\system32\schtasks.exe
  "C:\Windows\system32\schtasks.exe" /query /tn administrator
  2⤵
  PID:2984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ifxkgpqg.c2w.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1640-17-0x0000023251AA0000-0x0000023251AB0000-memory.dmp

Filesize
64KB

Download
memory/1640-7-0x00007FF8B2F70000-0x00007FF8B3A31000-memory.dmp

Filesize
10.8MB

Download
memory/1640-1-0x0000023251A30000-0x0000023251A52000-memory.dmp

Filesize
136KB

Download
memory/1640-12-0x00007FF8B2F70000-0x00007FF8B3A31000-memory.dmp

Filesize
10.8MB

Download
memory/1640-13-0x0000023251A20000-0x0000023251A2A000-memory.dmp

Filesize
40KB

Download
memory/1640-20-0x00007FF8B2F70000-0x00007FF8B3A31000-memory.dmp

Filesize
10.8MB

Download
memory/1640-15-0x00007FF8B2F70000-0x00007FF8B3A31000-memory.dmp

Filesize
10.8MB

Download
memory/1640-0-0x00007FF8B2F73000-0x00007FF8B2F75000-memory.dmp

Filesize
8KB

Download
memory/2640-21-0x00000000056D0000-0x00000000056E0000-memory.dmp

Filesize
64KB

Download
memory/2640-16-0x00000000750DE000-0x00000000750DF000-memory.dmp

Filesize
4KB

Download
memory/2640-14-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2640-22-0x0000000005E90000-0x0000000006434000-memory.dmp

Filesize
5.6MB

Download
memory/2640-23-0x0000000005AC0000-0x0000000005B52000-memory.dmp

Filesize
584KB

Download
memory/2640-24-0x0000000005A70000-0x0000000005A7A000-memory.dmp

Filesize
40KB

Download
memory/2640-27-0x0000000007760000-0x00000000077FC000-memory.dmp

Filesize
624KB

Download
memory/2640-28-0x0000000007800000-0x0000000007866000-memory.dmp

Filesize
408KB

Download
memory/2640-29-0x00000000750DE000-0x00000000750DF000-memory.dmp

Filesize
4KB

Download
memory/2640-30-0x00000000056D0000-0x00000000056E0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing