asyncrat | 495897a0e9d55bbd06884df8b9b7c15d9c398e825538d7a235cbfb7d75d4b99e

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-10-2024 23:14

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

495897a0e9d55bbd06884df8b9b7c15d9c398e825538d7a235cbfb7d75d4b99e.exe
Size

3.6MB
MD5

81225dda9225995e9c584c9984119238
SHA1

7f468d190e9a34db1357bdbe19911c0a8d427d3c
SHA256

495897a0e9d55bbd06884df8b9b7c15d9c398e825538d7a235cbfb7d75d4b99e
SHA512

59aaa60ceb8ec54c94d1affbe39a307713c3959601ec2d53884424308d553b296b4ae093b9c7222c38e5e006d1acac15a3e1b2239d7e42f09a7bca0d3909f304
SSDEEP

49152:QWGtLBcXqxKT/msWkU0lcaX4YGamMZVE1s1bA4gK2nCR6SVb8kq4pgquLMMji4NR:UtLusqgwh4NYxtJpkxhGf333iHota

Score

10^/10

asyncrat blas-25-llegadera-paint discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

BLAS-25-LLEGADERA-PAINT

puerto4001.duckdns.org:4001

Mutex

DcRatMutex_qwqdanchun

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
Asyncrat family
asyncrat

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

495897a0e9d55bbd06884df8b9b7c15d9c398e825538d7a235cbfb7d75d4b99e.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\BurnDesignerEditor = "C:\\Users\\Admin\\Music\\BurnDesignerUpdater\\BurnConvertVideo.exe"	495897a0e9d55bbd06884df8b9b7c15d9c398e825538d7a235cbfb7d75d4b99e.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

495897a0e9d55bbd06884df8b9b7c15d9c398e825538d7a235cbfb7d75d4b99e.exe

description	pid	process	target process
PID 1032 set thread context of 3044	1032	495897a0e9d55bbd06884df8b9b7c15d9c398e825538d7a235cbfb7d75d4b99e.exe	csc.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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:

495897a0e9d55bbd06884df8b9b7c15d9c398e825538d7a235cbfb7d75d4b99e.execsc.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	495897a0e9d55bbd06884df8b9b7c15d9c398e825538d7a235cbfb7d75d4b99e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

495897a0e9d55bbd06884df8b9b7c15d9c398e825538d7a235cbfb7d75d4b99e.exe

description	pid	process	target process
PID 1032 wrote to memory of 3044	1032	495897a0e9d55bbd06884df8b9b7c15d9c398e825538d7a235cbfb7d75d4b99e.exe	csc.exe
PID 1032 wrote to memory of 3044	1032	495897a0e9d55bbd06884df8b9b7c15d9c398e825538d7a235cbfb7d75d4b99e.exe	csc.exe
PID 1032 wrote to memory of 3044	1032	495897a0e9d55bbd06884df8b9b7c15d9c398e825538d7a235cbfb7d75d4b99e.exe	csc.exe
PID 1032 wrote to memory of 3044	1032	495897a0e9d55bbd06884df8b9b7c15d9c398e825538d7a235cbfb7d75d4b99e.exe	csc.exe
PID 1032 wrote to memory of 3044	1032	495897a0e9d55bbd06884df8b9b7c15d9c398e825538d7a235cbfb7d75d4b99e.exe	csc.exe

C:\Users\Admin\AppData\Local\Temp\495897a0e9d55bbd06884df8b9b7c15d9c398e825538d7a235cbfb7d75d4b99e.exe
"C:\Users\Admin\AppData\Local\Temp\495897a0e9d55bbd06884df8b9b7c15d9c398e825538d7a235cbfb7d75d4b99e.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1032

C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
2⤵
- System Location Discovery: System Language Discovery
PID:3044

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1032-2-0x0000000000517000-0x000000000052F000-memory.dmp

Filesize
96KB

Download
memory/1032-1-0x0000000000400000-0x00000000007B1000-memory.dmp

Filesize
3.7MB

Download
memory/1032-4-0x0000000000400000-0x00000000007B1000-memory.dmp

Filesize
3.7MB

Download
memory/1032-3-0x0000000000400000-0x00000000007B1000-memory.dmp

Filesize
3.7MB

Download
memory/1032-9-0x0000000000400000-0x00000000007B1000-memory.dmp

Filesize
3.7MB

Download
memory/1032-8-0x0000000000400000-0x00000000007B1000-memory.dmp

Filesize
3.7MB

Download
memory/1032-6-0x0000000000400000-0x00000000007B1000-memory.dmp

Filesize
3.7MB

Download
memory/1032-5-0x0000000000400000-0x00000000007B1000-memory.dmp

Filesize
3.7MB

Download
memory/1032-0-0x0000000000400000-0x00000000007B1000-memory.dmp

Filesize
3.7MB

Download
memory/3044-7-0x0000000000690000-0x00000000006A2000-memory.dmp

Filesize
72KB

Download
memory/3044-10-0x0000000073FAE000-0x0000000073FAF000-memory.dmp

Filesize
4KB

Download
memory/3044-11-0x0000000073FA0000-0x0000000074750000-memory.dmp

Filesize
7.7MB

Download
memory/3044-13-0x0000000073FA0000-0x0000000074750000-memory.dmp

Filesize
7.7MB

Download