asyncrat | 4906a283d9ac5b358a5ed6967b0518ff934c0373add85a15b433cb536b0d97ef

General

Target

2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.exe
Size

4.1MB
MD5

709ed19b7a560246f2d8be96d1a426e1
SHA1

b5aab1c97e3c235931fa31765eb42cc58a3a79a3
SHA256

4906a283d9ac5b358a5ed6967b0518ff934c0373add85a15b433cb536b0d97ef
SHA512

12e21a160f3d8eeaf61827d8b07a91c27e65dea831493fb6c20c8177d55b7b2d378faf439187948c42aba4721afdccea7c5bd093609fac698a7066c0bdcb50b9
SSDEEP

49152:NlN0gW7O2/4DkO2srmDrPP1hvauFUHu480TJenr1vJb:N7HG3nf0TJeJt

Score

10^/10

asyncrat default execution persistence rat

Malware Config

Extracted

Family

asyncrat

Version

2.0.0

Botnet

Default

C2

webwhatsapp.cc:65503

Mutex

ShiningForceRatMutex_cs_cs_cs

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

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

Detects executables attemping to enumerate video devices using WMI 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2632-27-0x0000000000400000-0x0000000000416000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice
behavioral1/memory/2632-25-0x0000000000400000-0x0000000000416000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice
behavioral1/memory/2632-23-0x0000000000400000-0x0000000000416000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice
behavioral1/memory/2632-20-0x0000000000400000-0x0000000000416000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice
behavioral1/memory/2632-18-0x0000000000400000-0x0000000000416000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice

Detects executables containing the string DcRatBy 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2632-27-0x0000000000400000-0x0000000000416000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DcRatBy
behavioral1/memory/2632-25-0x0000000000400000-0x0000000000416000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DcRatBy
behavioral1/memory/2632-23-0x0000000000400000-0x0000000000416000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DcRatBy
behavioral1/memory/2632-20-0x0000000000400000-0x0000000000416000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DcRatBy
behavioral1/memory/2632-18-0x0000000000400000-0x0000000000416000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DcRatBy

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

Processes:

powershell.exe

pid process

1932 powershell.exe

pid	process
1932	powershell.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "\"C:\\Users\\Admin\\.r1nwmCx\\svchost.exe\""	2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.exe

description pid process target process

PID 2860 set thread context of 2632 2860 2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.exe jsc.exe
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

Processes:

schtasks.exe

pid process

2712 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

1932 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exejsc.exe

description pid process

Token: SeDebugPrivilege 1932 powershell.exe
Token: SeDebugPrivilege 2632 jsc.exe

description	pid	process	target process
PID 2860 set thread context of 2632	2860	2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.exe	jsc.exe

pid	process
2712	schtasks.exe

pid	process
1932	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1932	powershell.exe
Token: SeDebugPrivilege	2632	jsc.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.execmd.exe

description	pid	process	target process
PID 2860 wrote to memory of 1932	2860	2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.exe	powershell.exe
PID 2860 wrote to memory of 1932	2860	2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.exe	powershell.exe
PID 2860 wrote to memory of 1932	2860	2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.exe	powershell.exe
PID 2860 wrote to memory of 1640	2860	2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.exe	cmd.exe
PID 2860 wrote to memory of 1640	2860	2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.exe	cmd.exe
PID 2860 wrote to memory of 1640	2860	2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.exe	cmd.exe
PID 1640 wrote to memory of 2712	1640	cmd.exe	schtasks.exe
PID 1640 wrote to memory of 2712	1640	cmd.exe	schtasks.exe
PID 1640 wrote to memory of 2712	1640	cmd.exe	schtasks.exe
PID 2860 wrote to memory of 2632	2860	2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.exe	jsc.exe
PID 2860 wrote to memory of 2632	2860	2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.exe	jsc.exe
PID 2860 wrote to memory of 2632	2860	2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.exe	jsc.exe
PID 2860 wrote to memory of 2632	2860	2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.exe	jsc.exe
PID 2860 wrote to memory of 2632	2860	2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.exe	jsc.exe
PID 2860 wrote to memory of 2632	2860	2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.exe	jsc.exe
PID 2860 wrote to memory of 2632	2860	2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.exe	jsc.exe
PID 2860 wrote to memory of 2632	2860	2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.exe	jsc.exe
PID 2860 wrote to memory of 2632	2860	2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.exe	jsc.exe

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:\Users\Admin\AppData\Local\Temp\2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-24_709ed19b7a560246f2d8be96d1a426e1_megazord.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2860

C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath $env:UserProfile
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1932

C:\Windows\system32\cmd.exe
"cmd" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\.r1nwmCx\svchost.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1640

C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\.r1nwmCx\svchost.exe"'
3⤵
- Creates scheduled task(s)
PID:2712

C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

Scheduled Task/Job

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

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab2E05.tmp
Filesize
68KB

MD5
29f65ba8e88c063813cc50a4ea544e93

SHA1
05a7040d5c127e68c25d81cc51271ffb8bef3568

SHA256
1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

SHA512
e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar32A9.tmp
Filesize
177KB

MD5
435a9ac180383f9fa094131b173a2f7b

SHA1
76944ea657a9db94f9a4bef38f88c46ed4166983

SHA256
67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

SHA512
1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

Download Submit
memory/1932-13-0x000007FEF57A0000-0x000007FEF613D000-memory.dmp

Filesize
9.6MB

Download
memory/1932-5-0x000000001B4F0000-0x000000001B7D2000-memory.dmp

Filesize
2.9MB

Download
memory/1932-7-0x000007FEF57A0000-0x000007FEF613D000-memory.dmp

Filesize
9.6MB

Download
memory/1932-6-0x0000000001E90000-0x0000000001E98000-memory.dmp

Filesize
32KB

Download
memory/1932-8-0x000007FEF57A0000-0x000007FEF613D000-memory.dmp

Filesize
9.6MB

Download
memory/1932-10-0x000007FEF57A0000-0x000007FEF613D000-memory.dmp

Filesize
9.6MB

Download
memory/1932-9-0x000007FEF57A0000-0x000007FEF613D000-memory.dmp

Filesize
9.6MB

Download
memory/1932-4-0x000007FEF5A5E000-0x000007FEF5A5F000-memory.dmp

Filesize
4KB

Download
memory/1932-28-0x000007FEF57A0000-0x000007FEF613D000-memory.dmp

Filesize
9.6MB

Download
memory/2632-25-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2632-18-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2632-16-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2632-14-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2632-20-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2632-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2632-23-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2632-27-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads