asyncrat | b1444aaa649bea7bfad1285cadf4286d8cc04b3e595644d3e3b43faf6bb83e8e

Analysis

max time kernel
133s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-10-2024 12:10

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General

Target

MT 103 PAYMENT SLIP.pdf.exe
Size

469KB
MD5

3c69297a420b00c660113d44eb039254
SHA1

dc8212328e6dd88e713efb161ecaa3fe25d1eb0f
SHA256

142873db547e46701d0630bf254b6e4d7570a37e62194e89264b53410682d9a8
SHA512

70c3e84356bfc0798cb35b42907a64428d08b5816da7b30c7fe365f1c63f6312c68569b3b58e19f90539cc1bdb9a553346c92705ab0363c321b2ae16f3077e63
SSDEEP

12288:9JRUxMAcD2Im3x3I1luJwZrFhwJbAWqpI0:9JRUxjcD2Igh2lj20I0

Score

10^/10

asyncrat default discovery execution rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

185.106.92.86:4040

Mutex

xcjujxywyntbavbe

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
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

904 powershell.exe

pid	process
904	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

MT 103 PAYMENT SLIP.pdf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	MT 103 PAYMENT SLIP.pdf.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

MT 103 PAYMENT SLIP.pdf.exe

description pid process target process

PID 3660 set thread context of 4532 3660 MT 103 PAYMENT SLIP.pdf.exe RegSvcs.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 3660 set thread context of 4532	3660	MT 103 PAYMENT SLIP.pdf.exe	RegSvcs.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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

Processes:

MT 103 PAYMENT SLIP.pdf.exeRegSvcs.exepowershell.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MT 103 PAYMENT SLIP.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

MT 103 PAYMENT SLIP.pdf.exepowershell.exeRegSvcs.exe

pid	process
3660	MT 103 PAYMENT SLIP.pdf.exe
3660	MT 103 PAYMENT SLIP.pdf.exe
3660	MT 103 PAYMENT SLIP.pdf.exe
3660	MT 103 PAYMENT SLIP.pdf.exe
904	powershell.exe
904	powershell.exe
4532	RegSvcs.exe
4532	RegSvcs.exe
4532	RegSvcs.exe
4532	RegSvcs.exe
4532	RegSvcs.exe
4532	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

MT 103 PAYMENT SLIP.pdf.exeRegSvcs.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	3660	MT 103 PAYMENT SLIP.pdf.exe
Token: SeDebugPrivilege	4532	RegSvcs.exe
Token: SeDebugPrivilege	904	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegSvcs.exe

pid process

4532 RegSvcs.exe

pid	process
4532	RegSvcs.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

MT 103 PAYMENT SLIP.pdf.exe

description	pid	process	target process
PID 3660 wrote to memory of 904	3660	MT 103 PAYMENT SLIP.pdf.exe	powershell.exe
PID 3660 wrote to memory of 904	3660	MT 103 PAYMENT SLIP.pdf.exe	powershell.exe
PID 3660 wrote to memory of 904	3660	MT 103 PAYMENT SLIP.pdf.exe	powershell.exe
PID 3660 wrote to memory of 2272	3660	MT 103 PAYMENT SLIP.pdf.exe	RegSvcs.exe
PID 3660 wrote to memory of 2272	3660	MT 103 PAYMENT SLIP.pdf.exe	RegSvcs.exe
PID 3660 wrote to memory of 2272	3660	MT 103 PAYMENT SLIP.pdf.exe	RegSvcs.exe
PID 3660 wrote to memory of 4532	3660	MT 103 PAYMENT SLIP.pdf.exe	RegSvcs.exe
PID 3660 wrote to memory of 4532	3660	MT 103 PAYMENT SLIP.pdf.exe	RegSvcs.exe
PID 3660 wrote to memory of 4532	3660	MT 103 PAYMENT SLIP.pdf.exe	RegSvcs.exe
PID 3660 wrote to memory of 4532	3660	MT 103 PAYMENT SLIP.pdf.exe	RegSvcs.exe
PID 3660 wrote to memory of 4532	3660	MT 103 PAYMENT SLIP.pdf.exe	RegSvcs.exe
PID 3660 wrote to memory of 4532	3660	MT 103 PAYMENT SLIP.pdf.exe	RegSvcs.exe
PID 3660 wrote to memory of 4532	3660	MT 103 PAYMENT SLIP.pdf.exe	RegSvcs.exe
PID 3660 wrote to memory of 4532	3660	MT 103 PAYMENT SLIP.pdf.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\MT 103 PAYMENT SLIP.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\MT 103 PAYMENT SLIP.pdf.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3660

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\MT 103 PAYMENT SLIP.pdf.exe"
2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:904

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
2⤵
PID:2272

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4532

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gcqilwkq.kxi.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/904-49-0x0000000007B00000-0x0000000007BA3000-memory.dmp

Filesize
652KB

Download
memory/904-51-0x0000000007C00000-0x0000000007C1A000-memory.dmp

Filesize
104KB

Download
memory/904-61-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/904-58-0x0000000007F20000-0x0000000007F28000-memory.dmp

Filesize
32KB

Download
memory/904-57-0x0000000007F40000-0x0000000007F5A000-memory.dmp

Filesize
104KB

Download
memory/904-56-0x0000000007E50000-0x0000000007E64000-memory.dmp

Filesize
80KB

Download
memory/904-55-0x0000000007E40000-0x0000000007E4E000-memory.dmp

Filesize
56KB

Download
memory/904-32-0x0000000006290000-0x00000000065E4000-memory.dmp

Filesize
3.3MB

Download
memory/904-54-0x0000000007E00000-0x0000000007E11000-memory.dmp

Filesize
68KB

Download
memory/904-53-0x0000000007E80000-0x0000000007F16000-memory.dmp

Filesize
600KB

Download
memory/904-52-0x0000000007C70000-0x0000000007C7A000-memory.dmp

Filesize
40KB

Download
memory/904-13-0x0000000002F30000-0x0000000002F66000-memory.dmp

Filesize
216KB

Download
memory/904-50-0x0000000008240000-0x00000000088BA000-memory.dmp

Filesize
6.5MB

Download
memory/904-15-0x00000000059B0000-0x0000000005FD8000-memory.dmp

Filesize
6.2MB

Download
memory/904-48-0x0000000006EE0000-0x0000000006EFE000-memory.dmp

Filesize
120KB

Download
memory/904-17-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/904-19-0x0000000005820000-0x0000000005842000-memory.dmp

Filesize
136KB

Download
memory/904-21-0x00000000060C0000-0x0000000006126000-memory.dmp

Filesize
408KB

Download
memory/904-20-0x0000000006050000-0x00000000060B6000-memory.dmp

Filesize
408KB

Download
memory/904-22-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/904-38-0x0000000071170000-0x00000000711BC000-memory.dmp

Filesize
304KB

Download
memory/904-37-0x0000000006EA0000-0x0000000006ED2000-memory.dmp

Filesize
200KB

Download
memory/904-34-0x00000000068E0000-0x00000000068FE000-memory.dmp

Filesize
120KB

Download
memory/904-36-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/904-35-0x0000000006970000-0x00000000069BC000-memory.dmp

Filesize
304KB

Download
memory/3660-16-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/3660-9-0x0000000007FC0000-0x000000000801A000-memory.dmp

Filesize
360KB

Download
memory/3660-4-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/3660-10-0x000000000A760000-0x000000000A7FC000-memory.dmp

Filesize
624KB

Download
memory/3660-6-0x000000007533E000-0x000000007533F000-memory.dmp

Filesize
4KB

Download
memory/3660-3-0x0000000005430000-0x00000000054C2000-memory.dmp

Filesize
584KB

Download
memory/3660-1-0x0000000000B70000-0x0000000000BEA000-memory.dmp

Filesize
488KB

Download
memory/3660-8-0x0000000005A70000-0x0000000005A82000-memory.dmp

Filesize
72KB

Download
memory/3660-0-0x000000007533E000-0x000000007533F000-memory.dmp

Filesize
4KB

Download
memory/3660-2-0x0000000005AA0000-0x0000000006044000-memory.dmp

Filesize
5.6MB

Download
memory/3660-7-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/3660-5-0x0000000005500000-0x000000000550A000-memory.dmp

Filesize
40KB

Download
memory/4532-33-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/4532-11-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/4532-14-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/4532-62-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download