asyncrat | 59ac6b70725a97f04ae106fa7f24c238bbfeacf34e87af40be8ed91a8bcd5d3a

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

C2

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-1-5-21-2660163958-4080398480-1122754539-1000\Software\Microsoft\Windows\CurrentVersion\Run\Niiiiuttu = "C:\\Users\\Admin\\Documents\\Ounsa\\CoxcoxUpdater.exe"	2024-07-24_21bf3c8f22597853b3b74da6a5063a68_avoslocker.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1760 set thread context of 892	1760	2024-07-24_21bf3c8f22597853b3b74da6a5063a68_avoslocker.exe	30

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	892	csc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1760 wrote to memory of 892	1760	2024-07-24_21bf3c8f22597853b3b74da6a5063a68_avoslocker.exe	30
PID 1760 wrote to memory of 892	1760	2024-07-24_21bf3c8f22597853b3b74da6a5063a68_avoslocker.exe	30
PID 1760 wrote to memory of 892	1760	2024-07-24_21bf3c8f22597853b3b74da6a5063a68_avoslocker.exe	30
PID 1760 wrote to memory of 892	1760	2024-07-24_21bf3c8f22597853b3b74da6a5063a68_avoslocker.exe	30
PID 1760 wrote to memory of 892	1760	2024-07-24_21bf3c8f22597853b3b74da6a5063a68_avoslocker.exe	30
PID 1760 wrote to memory of 892	1760	2024-07-24_21bf3c8f22597853b3b74da6a5063a68_avoslocker.exe	30

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:1760
- 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:892

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab3314.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/892-12-0x00000000742AE000-0x00000000742AF000-memory.dmp

Filesize
4KB

Download
memory/892-31-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download
memory/892-30-0x00000000742AE000-0x00000000742AF000-memory.dmp

Filesize
4KB

Download
memory/892-5-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/892-4-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/892-6-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/892-8-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/892-10-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/892-13-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download
memory/1760-3-0x0000000000400000-0x00000000005EB000-memory.dmp

Filesize
1.9MB

Download
memory/1760-11-0x0000000000400000-0x00000000005EB000-memory.dmp

Filesize
1.9MB

Download
memory/1760-0-0x0000000000400000-0x00000000005EB000-memory.dmp

Filesize
1.9MB

Download
memory/1760-1-0x0000000000407000-0x0000000000421000-memory.dmp

Filesize
104KB

Download
memory/1760-2-0x0000000000400000-0x00000000005EB000-memory.dmp

Filesize
1.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads