asyncrat | 33662b678b26b66b299bd29ae55123674b8cdba03320b421812a30c0761cba47

General

Target

9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe
Size

105KB
MD5

00178324ac554e6e82c85a75dcb5ecd1
SHA1

80e0d833b4ac41eec676194bd80ec0f55d5bc526
SHA256

9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc
SHA512

6df2df209441cc234c0da69c7853908914a3add3bc270b4ebfd3626f40f4c8cdfac8e44d9d6537f28785c268a1bd71f80a6fdcda231174c5cac827feaa809675
SSDEEP

1536:egVaNakN+AcOvfpKUmrFZlqgdpZ+rwVINbvlC9bgKXRK9f2kt:egValNvcspmr7lqWZ1Ixk9bgKXRK9fl

Score

10^/10

asyncrat rynabsuk persistence rat

Malware Config

Extracted

Family

asyncrat

Version

| CRACKED BY https://t.me/xworm_v2

Botnet

RYNABSUK

C2

95.173.247.110:8810

Mutex

RYNABSUK

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

Async RAT payload 5 IoCs

rat

resource	yara_rule
behavioral1/memory/2516-10-0x0000000000400000-0x0000000000416000-memory.dmp	asyncrat
behavioral1/memory/2516-11-0x0000000000400000-0x0000000000416000-memory.dmp	asyncrat
behavioral1/memory/2516-16-0x0000000000400000-0x0000000000416000-memory.dmp	asyncrat
behavioral1/memory/2516-14-0x0000000000400000-0x0000000000416000-memory.dmp	asyncrat
behavioral1/memory/2516-19-0x0000000000400000-0x0000000000416000-memory.dmp	asyncrat

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4219371764-2579186923-3390623117-1000\Software\Microsoft\Windows\CurrentVersion\Run\ReRuntimeBroker = "C:\\Users\\Admin\\AppData\\Roaming\\ReRuntimeBroker\\ReRuntimeBroker.exe"	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2584 set thread context of 2516	2584	9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe	33

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
1724	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1972	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1972	powershell.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2584 wrote to memory of 1972	2584	9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe	28
PID 2584 wrote to memory of 1972	2584	9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe	28
PID 2584 wrote to memory of 1972	2584	9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe	28
PID 2584 wrote to memory of 1972	2584	9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe	28
PID 2584 wrote to memory of 1960	2584	9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe	30
PID 2584 wrote to memory of 1960	2584	9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe	30
PID 2584 wrote to memory of 1960	2584	9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe	30
PID 2584 wrote to memory of 1960	2584	9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe	30
PID 1960 wrote to memory of 1724	1960	cmd.exe	32
PID 1960 wrote to memory of 1724	1960	cmd.exe	32
PID 1960 wrote to memory of 1724	1960	cmd.exe	32
PID 1960 wrote to memory of 1724	1960	cmd.exe	32
PID 2584 wrote to memory of 2516	2584	9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe	33
PID 2584 wrote to memory of 2516	2584	9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe	33
PID 2584 wrote to memory of 2516	2584	9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe	33
PID 2584 wrote to memory of 2516	2584	9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe	33
PID 2584 wrote to memory of 2516	2584	9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe	33
PID 2584 wrote to memory of 2516	2584	9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe	33
PID 2584 wrote to memory of 2516	2584	9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe	33
PID 2584 wrote to memory of 2516	2584	9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe	33
PID 2584 wrote to memory of 2516	2584	9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe	33
PID 2584 wrote to memory of 2516	2584	9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe	33
PID 2584 wrote to memory of 2516	2584	9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe	33
PID 2584 wrote to memory of 2516	2584	9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe	33

C:\Users\Admin\AppData\Local\Temp\9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe
"C:\Users\Admin\AppData\Local\Temp\9050f1b2fe9de1303a608ad5329db45d101ff616009add295d67e162ab4d8dfc.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2584
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Remove -ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'ReRuntimeBroker';New-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'ReRuntimeBroker' -Value '"C:\Users\Admin\AppData\Roaming\ReRuntimeBroker\ReRuntimeBroker.exe"' -PropertyType 'String'
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1972
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /C schtasks /create /tn \ReRuntimeBroker /tr "C:\Users\Admin\AppData\Roaming\ReRuntimeBroker\ReRuntimeBroker.exe" /st 00:00 /du 9999:59 /sc once /ri 60 /rl HIGHEST /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1960
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /tn \ReRuntimeBroker /tr "C:\Users\Admin\AppData\Roaming\ReRuntimeBroker\ReRuntimeBroker.exe" /st 00:00 /du 9999:59 /sc once /ri 60 /rl HIGHEST /f
    3⤵
    - Creates scheduled task(s)
    PID:1724
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  #cmd
  2⤵
  PID:2516

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1972-20-0x0000000070AC0000-0x000000007106B000-memory.dmp

Filesize
5.7MB

Download
memory/1972-24-0x0000000070AC0000-0x000000007106B000-memory.dmp

Filesize
5.7MB

Download
memory/1972-23-0x0000000002720000-0x0000000002760000-memory.dmp

Filesize
256KB

Download
memory/1972-21-0x0000000002720000-0x0000000002760000-memory.dmp

Filesize
256KB

Download
memory/1972-22-0x0000000002720000-0x0000000002760000-memory.dmp

Filesize
256KB

Download
memory/2516-8-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2516-11-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2516-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2516-16-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2516-14-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2516-19-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2516-10-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2516-4-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2584-18-0x0000000074AF0000-0x00000000751DE000-memory.dmp

Filesize
6.9MB

Download
memory/2584-0-0x0000000001290000-0x00000000012B0000-memory.dmp

Filesize
128KB

Download
memory/2584-3-0x0000000004C50000-0x0000000004C90000-memory.dmp

Filesize
256KB

Download
memory/2584-1-0x0000000074AF0000-0x00000000751DE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads