asyncrat | 75938ac69c673d67db37935a2c882a56d21f8085a326a61033a41c61a969353c

General

Target

75938ac69c673d67db37935a2c882a56d21f8085a326a61033a41c61a969353c.ps1
Size

453KB
MD5

dfc24069261dc85eda81abcb07e55c69
SHA1

f630b39909c81d172d434bd2b59ec3a2fd855a97
SHA256

75938ac69c673d67db37935a2c882a56d21f8085a326a61033a41c61a969353c
SHA512

705cffd220ef303b45cfff7687946e52098166c0c7bf4f6973947786372a789df85233ebcd67b302a9b255fc08262e367356b057024190b23ef13d1a99e4e3eb
SSDEEP

6144:4ABE+NPVFL2bUCUrNlKomLJVlCssptqzo:JE+NPVFL2bUCUrNlKomLJVlCzso

Score

10^/10

asyncrat 00000001 discovery execution rat

Malware Config

Extracted

Family

asyncrat

Version

AWS | 3Losh

Botnet

00000001

C2

81.10.39.58:7077

Mutex

AsyncMutex_alosh

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 2068 set thread context of 3548	2068	powershell.exe	85

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2068	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: EnumeratesProcesses 7 IoCs

pid	Process
2068	powershell.exe
2068	powershell.exe
2068	powershell.exe
2068	powershell.exe
2068	powershell.exe
2068	powershell.exe
3548	aspnet_compiler.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2068	powershell.exe
Token: SeDebugPrivilege	3548	aspnet_compiler.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3548	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2068 wrote to memory of 1644	2068	powershell.exe	83
PID 2068 wrote to memory of 1644	2068	powershell.exe	83
PID 2068 wrote to memory of 1644	2068	powershell.exe	83
PID 2068 wrote to memory of 1564	2068	powershell.exe	84
PID 2068 wrote to memory of 1564	2068	powershell.exe	84
PID 2068 wrote to memory of 1564	2068	powershell.exe	84
PID 2068 wrote to memory of 3548	2068	powershell.exe	85
PID 2068 wrote to memory of 3548	2068	powershell.exe	85
PID 2068 wrote to memory of 3548	2068	powershell.exe	85
PID 2068 wrote to memory of 3548	2068	powershell.exe	85
PID 2068 wrote to memory of 3548	2068	powershell.exe	85
PID 2068 wrote to memory of 3548	2068	powershell.exe	85
PID 2068 wrote to memory of 3548	2068	powershell.exe	85
PID 2068 wrote to memory of 3548	2068	powershell.exe	85

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\75938ac69c673d67db37935a2c882a56d21f8085a326a61033a41c61a969353c.ps1
1⤵
- Suspicious use of SetThreadContext
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2068
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:1644
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:1564
- 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: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3548

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_42b1zssl.hyf.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2068-17-0x00007FFD78110000-0x00007FFD78BD1000-memory.dmp

Filesize
10.8MB

Download
memory/2068-1-0x00000162758C0000-0x00000162758E2000-memory.dmp

Filesize
136KB

Download
memory/2068-7-0x00007FFD78110000-0x00007FFD78BD1000-memory.dmp

Filesize
10.8MB

Download
memory/2068-12-0x00007FFD78110000-0x00007FFD78BD1000-memory.dmp

Filesize
10.8MB

Download
memory/2068-13-0x0000016275A30000-0x0000016275A3C000-memory.dmp

Filesize
48KB

Download
memory/2068-0-0x00007FFD78113000-0x00007FFD78115000-memory.dmp

Filesize
8KB

Download
memory/3548-18-0x0000000074D4E000-0x0000000074D4F000-memory.dmp

Filesize
4KB

Download
memory/3548-14-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/3548-19-0x0000000074D40000-0x00000000754F0000-memory.dmp

Filesize
7.7MB

Download
memory/3548-20-0x0000000006030000-0x00000000065D4000-memory.dmp

Filesize
5.6MB

Download
memory/3548-21-0x0000000005C60000-0x0000000005CF2000-memory.dmp

Filesize
584KB

Download
memory/3548-22-0x0000000005C50000-0x0000000005C5A000-memory.dmp

Filesize
40KB

Download
memory/3548-23-0x0000000006C70000-0x0000000006D0C000-memory.dmp

Filesize
624KB

Download
memory/3548-24-0x0000000006950000-0x00000000069B6000-memory.dmp

Filesize
408KB

Download
memory/3548-25-0x0000000074D4E000-0x0000000074D4F000-memory.dmp

Filesize
4KB

Download
memory/3548-26-0x0000000074D40000-0x00000000754F0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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