asyncrat | 80f785a35f7487df96bb17b1fe2a67f188417ad017db8efac8d83b3858efcd96

General

Target

vlc.exe
Size

83KB
MD5

56908392d21ec7d8be04f7bbd59732c2
SHA1

c864ef983e05ec65fcb4c9ef19444eef8728cc2b
SHA256

80f785a35f7487df96bb17b1fe2a67f188417ad017db8efac8d83b3858efcd96
SHA512

6d6aa7cc3bc963d8c0ed2eca6250f6a09ca69228704dabf5998bf8069708fbe4739a8e4ca47086cd937984b58c029af239442ac6227335320e51fc6d40e9e981
SSDEEP

1536:msGVpglGkHHFwPtwKOl2Dp+jZuMzJAGdjl:NV9OFtOAQQMzJVdjl

Score

10^/10

asyncrat default persistence rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

2.58.56.22:5211

Mutex

DcRatMutex_qwqdanchun

Attributes

delay
1
install
false
install_file
Spoofer.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat

Async RAT payload 6 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/292-62-0x0000000000400000-0x0000000000416000-memory.dmp	asyncrat
behavioral1/memory/292-63-0x0000000000400000-0x0000000000416000-memory.dmp	asyncrat
behavioral1/memory/292-64-0x0000000000400000-0x0000000000416000-memory.dmp	asyncrat
behavioral1/memory/292-65-0x000000000041093E-mapping.dmp	asyncrat
behavioral1/memory/292-69-0x0000000000400000-0x0000000000416000-memory.dmp	asyncrat
behavioral1/memory/292-67-0x0000000000400000-0x0000000000416000-memory.dmp	asyncrat

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

powershell.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\vlc = "C:\\Program Files (x86)\\vlc\\vlc.exe"	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

vlc.exe

description pid process target process

PID 1312 set thread context of 292 1312 vlc.exe RegAsm.exe
Drops file in Program Files directory 1 IoCs

Processes:

vlc.exe

description ioc process

File created C:\Program Files (x86)\vlc\vlc.exe vlc.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

vlc.exepowershell.exe

pid process

1312 vlc.exe
1392 powershell.exe

description	pid	process	target process
PID 1312 set thread context of 292	1312	vlc.exe	RegAsm.exe

description	ioc	process
File created	C:\Program Files (x86)\vlc\vlc.exe	vlc.exe

pid	process
1312	vlc.exe
1392	powershell.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

vlc.exepowershell.exeRegAsm.exeAUDIODG.EXE

description	pid	process
Token: SeDebugPrivilege	1312	vlc.exe
Token: SeDebugPrivilege	1392	powershell.exe
Token: SeDebugPrivilege	292	RegAsm.exe
Token: 33	1960	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1960	AUDIODG.EXE
Token: 33	1960	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1960	AUDIODG.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

vlc.exe

description	pid	process	target process
PID 1312 wrote to memory of 1392	1312	vlc.exe	powershell.exe
PID 1312 wrote to memory of 1392	1312	vlc.exe	powershell.exe
PID 1312 wrote to memory of 1392	1312	vlc.exe	powershell.exe
PID 1312 wrote to memory of 1392	1312	vlc.exe	powershell.exe
PID 1312 wrote to memory of 292	1312	vlc.exe	RegAsm.exe
PID 1312 wrote to memory of 292	1312	vlc.exe	RegAsm.exe
PID 1312 wrote to memory of 292	1312	vlc.exe	RegAsm.exe
PID 1312 wrote to memory of 292	1312	vlc.exe	RegAsm.exe
PID 1312 wrote to memory of 292	1312	vlc.exe	RegAsm.exe
PID 1312 wrote to memory of 292	1312	vlc.exe	RegAsm.exe
PID 1312 wrote to memory of 292	1312	vlc.exe	RegAsm.exe
PID 1312 wrote to memory of 292	1312	vlc.exe	RegAsm.exe
PID 1312 wrote to memory of 292	1312	vlc.exe	RegAsm.exe
PID 1312 wrote to memory of 292	1312	vlc.exe	RegAsm.exe
PID 1312 wrote to memory of 292	1312	vlc.exe	RegAsm.exe
PID 1312 wrote to memory of 292	1312	vlc.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\vlc.exe
"C:\Users\Admin\AppData\Local\Temp\vlc.exe"
1⤵
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1312

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"powershell.exe" Remove-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'vlc';New-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'vlc' -Value '"C:\Program Files (x86)\vlc\vlc.exe"' -PropertyType 'String'
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1392

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:292

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x548
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1960

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/292-65-0x000000000041093E-mapping.dmp

Download
memory/292-62-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/292-67-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/292-64-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/292-59-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/292-60-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/292-69-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/292-63-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1312-55-0x00000000761E1000-0x00000000761E3000-memory.dmp

Filesize
8KB

Download
memory/1312-54-0x0000000000E50000-0x0000000000E6A000-memory.dmp

Filesize
104KB

Download
memory/1312-56-0x0000000000600000-0x000000000061A000-memory.dmp

Filesize
104KB

Download
memory/1392-57-0x0000000000000000-mapping.dmp

Download
memory/1392-71-0x0000000073CE0000-0x000000007428B000-memory.dmp

Filesize
5.7MB

Download
memory/1392-72-0x0000000073CE0000-0x000000007428B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads