asyncrat | e6b6bacad6bf1d3188ff8c2a41ea9f0aaa5114504da4ae8bda96c673f5e10c94

General

Target

BYBBLJDYNKYQRCIW.ps1
Size

553KB
MD5

223b842e87e7d124f133e2b21090e717
SHA1

99c830f860fe5d34b3802a62c790e0c26c7f1e5b
SHA256

1c8e29dbcd8795f22f73483b6e20929e0025fd113cd9b7b760aaf5aec3b5b9ee
SHA512

f83274a71a388b0349cdbfed15ae152cfd3dfb45c22d81171a4e1a74f0a298a53b68d53fc75e15b8b08195f8d5020f33397d5d33dac2aa8826a5894680555db6
SSDEEP

1536:kDh8DyXBs84VhDEak0EyxWq0IxZQjepORUXl9cGnZneXVsl6cGMyQxI:kDhiyXBs84VhDEakbyxWq0IYz2I

Score

10^/10

asyncrat newjop execution rat

Malware Config

Extracted

Family

asyncrat

Version

AWS | 3Losh

Botnet

newjop

C2

backwork07.ddns.net:6666

Mutex

AsyncMutex_raTMpP7xS21cDAE8

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

Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 1 IoCs

resource	yara_rule
behavioral2/memory/1184-14-0x0000000000400000-0x0000000000416000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs

Detects file containing reversed ASEP Autorun registry keys 1 IoCs

resource	yara_rule
behavioral2/memory/1184-14-0x0000000000400000-0x0000000000416000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4276 set thread context of 1184	4276	powershell.exe	89

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4276	powershell.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
4276	powershell.exe
4276	powershell.exe
4276	powershell.exe
4276	powershell.exe
1184	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4276	powershell.exe
Token: SeDebugPrivilege	1184	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1184	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4276 wrote to memory of 3476	4276	powershell.exe	88
PID 4276 wrote to memory of 3476	4276	powershell.exe	88
PID 4276 wrote to memory of 3476	4276	powershell.exe	88
PID 4276 wrote to memory of 1184	4276	powershell.exe	89
PID 4276 wrote to memory of 1184	4276	powershell.exe	89
PID 4276 wrote to memory of 1184	4276	powershell.exe	89
PID 4276 wrote to memory of 1184	4276	powershell.exe	89
PID 4276 wrote to memory of 1184	4276	powershell.exe	89
PID 4276 wrote to memory of 1184	4276	powershell.exe	89
PID 4276 wrote to memory of 1184	4276	powershell.exe	89
PID 4276 wrote to memory of 1184	4276	powershell.exe	89

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\BYBBLJDYNKYQRCIW.ps1
1⤵
- Suspicious use of SetThreadContext
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4276
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:3476
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1184

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_audkroah.v2k.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1184-22-0x0000000005770000-0x0000000005802000-memory.dmp

Filesize
584KB

Download
memory/1184-20-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1184-29-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1184-28-0x000000007521E000-0x000000007521F000-memory.dmp

Filesize
4KB

Download
memory/1184-27-0x00000000062A0000-0x0000000006306000-memory.dmp

Filesize
408KB

Download
memory/1184-14-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1184-26-0x0000000006860000-0x00000000068FC000-memory.dmp

Filesize
624KB

Download
memory/1184-19-0x000000007521E000-0x000000007521F000-memory.dmp

Filesize
4KB

Download
memory/1184-23-0x0000000005750000-0x000000000575A000-memory.dmp

Filesize
40KB

Download
memory/1184-21-0x0000000005B80000-0x0000000006124000-memory.dmp

Filesize
5.6MB

Download
memory/4276-18-0x00007FF8FAAA0000-0x00007FF8FB561000-memory.dmp

Filesize
10.8MB

Download
memory/4276-0-0x00007FF8FAAA3000-0x00007FF8FAAA5000-memory.dmp

Filesize
8KB

Download
memory/4276-1-0x0000011F7F900000-0x0000011F7F922000-memory.dmp

Filesize
136KB

Download
memory/4276-17-0x00007FF8FAAA0000-0x00007FF8FB561000-memory.dmp

Filesize
10.8MB

Download
memory/4276-13-0x0000011F1A7B0000-0x0000011F1A7CC000-memory.dmp

Filesize
112KB

Download
memory/4276-12-0x00007FF8FAAA0000-0x00007FF8FB561000-memory.dmp

Filesize
10.8MB

Download
memory/4276-11-0x00007FF8FAAA0000-0x00007FF8FB561000-memory.dmp

Filesize
10.8MB

Download

Analysis

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