asyncrat | 59ac6b70725a97f04ae106fa7f24c238bbfeacf34e87af40be8ed91a8bcd5d3a

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
24-07-2024 21:41

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General

Target

2024-07-24_21bf3c8f22597853b3b74da6a5063a68_avoslocker.exe
Size

10.0MB
MD5

21bf3c8f22597853b3b74da6a5063a68
SHA1

df0f9cd633197d9f6b5ce24e19d1f558f802d94f
SHA256

59ac6b70725a97f04ae106fa7f24c238bbfeacf34e87af40be8ed91a8bcd5d3a
SHA512

a327ee1325a190552cd2b92129337db5bc8d5d6e8d7c8079a532e33829eb71a953dad0e3eb0a39c4fc5d31a3596971bbeab1aa857fc23b39eb1d7043a3bd55dd
SSDEEP

49152:cBhZayP3pgXWFVeVpPsQgw5stv/JWu/ALmVk+j4UUbIwL/+NkVxT4BVZvutzlsjv:c1ZFVeVpUn

Score

10^/10

asyncrat mercenarios-oro discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

MERCENARIOS-ORO

proyectoxman1.casacam.net:8010

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

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-1-5-21-701583114-2636601053-947405450-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Niiiiuttu = "C:\\Users\\Admin\\Documents\\Ounsa\\CoxcoxUpdater.exe餀"	2024-07-24_21bf3c8f22597853b3b74da6a5063a68_avoslocker.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4256 set thread context of 4704	4256	2024-07-24_21bf3c8f22597853b3b74da6a5063a68_avoslocker.exe	94

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-07-24_21bf3c8f22597853b3b74da6a5063a68_avoslocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4704	csc.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4256 wrote to memory of 4704	4256	2024-07-24_21bf3c8f22597853b3b74da6a5063a68_avoslocker.exe	94
PID 4256 wrote to memory of 4704	4256	2024-07-24_21bf3c8f22597853b3b74da6a5063a68_avoslocker.exe	94
PID 4256 wrote to memory of 4704	4256	2024-07-24_21bf3c8f22597853b3b74da6a5063a68_avoslocker.exe	94
PID 4256 wrote to memory of 4704	4256	2024-07-24_21bf3c8f22597853b3b74da6a5063a68_avoslocker.exe	94
PID 4256 wrote to memory of 4704	4256	2024-07-24_21bf3c8f22597853b3b74da6a5063a68_avoslocker.exe	94

C:\Users\Admin\AppData\Local\Temp\2024-07-24_21bf3c8f22597853b3b74da6a5063a68_avoslocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-24_21bf3c8f22597853b3b74da6a5063a68_avoslocker.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4256
- 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
  - Suspicious use of AdjustPrivilegeToken
  PID:4704

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

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Downloads

memory/4256-4-0x0000000000400000-0x00000000005EB000-memory.dmp

Filesize
1.9MB

Download
memory/4256-1-0x0000000000407000-0x0000000000421000-memory.dmp

Filesize
104KB

Download
memory/4256-2-0x0000000000400000-0x00000000005EB000-memory.dmp

Filesize
1.9MB

Download
memory/4256-0-0x0000000000400000-0x00000000005EB000-memory.dmp

Filesize
1.9MB

Download
memory/4704-6-0x0000000073430000-0x0000000073BE0000-memory.dmp

Filesize
7.7MB

Download
memory/4704-5-0x000000007343E000-0x000000007343F000-memory.dmp

Filesize
4KB

Download
memory/4704-3-0x0000000000AB0000-0x0000000000AC2000-memory.dmp

Filesize
72KB

Download
memory/4704-9-0x0000000005800000-0x000000000589C000-memory.dmp

Filesize
624KB

Download
memory/4704-10-0x0000000005E50000-0x00000000063F4000-memory.dmp

Filesize
5.6MB

Download
memory/4704-11-0x0000000005910000-0x0000000005976000-memory.dmp

Filesize
408KB

Download
memory/4704-12-0x0000000073430000-0x0000000073BE0000-memory.dmp

Filesize
7.7MB

Download
memory/4704-13-0x000000007343E000-0x000000007343F000-memory.dmp

Filesize
4KB

Download
memory/4704-14-0x0000000073430000-0x0000000073BE0000-memory.dmp

Filesize
7.7MB

Download
memory/4704-15-0x0000000073430000-0x0000000073BE0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads