asyncrat | a768812c695da8b3d4698d02ff1e3693a7740a0b9108d43546cdfce4c76f8f0b

Analysis

max time kernel
144s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
07/09/2022, 09:41

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General

Target

a768812c695da8b3d4698d02ff1e3693a7740a0b9108d43546cdfce4c76f8f0b.exe
Size

154KB
MD5

3d7b0d01308d3b6a77c1b35347f571c7
SHA1

e416f7feed23a396008881c46d0f34e3083af106
SHA256

a768812c695da8b3d4698d02ff1e3693a7740a0b9108d43546cdfce4c76f8f0b
SHA512

6e1be45e419560f42344683345dd7e20bf8a7d26335ee2fb5885da6b47135b9f7682c9e1244612c3b6a005a98f5a67049aed1ad9ce191dbde6b0248083b8fb62
SSDEEP

3072:N92cCEH4bzKvUPTWFhgdWU62TYDUWBRzykb2s7hbxd:OGHU62TYDfbth

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

193.149.3.239:1938

Mutex

DcRatMutex_qwqdanchun

Attributes

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

aes.plain

Signatures

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

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/3640-135-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Downloads MZ/PE file

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a768812c695da8b3d4698d02ff1e3693a7740a0b9108d43546cdfce4c76f8f0b.exe	a768812c695da8b3d4698d02ff1e3693a7740a0b9108d43546cdfce4c76f8f0b.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a768812c695da8b3d4698d02ff1e3693a7740a0b9108d43546cdfce4c76f8f0b.exe	a768812c695da8b3d4698d02ff1e3693a7740a0b9108d43546cdfce4c76f8f0b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1300 set thread context of 3640	1300	a768812c695da8b3d4698d02ff1e3693a7740a0b9108d43546cdfce4c76f8f0b.exe	84

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1300	a768812c695da8b3d4698d02ff1e3693a7740a0b9108d43546cdfce4c76f8f0b.exe
Token: SeDebugPrivilege	3640	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1300 wrote to memory of 3640	1300	a768812c695da8b3d4698d02ff1e3693a7740a0b9108d43546cdfce4c76f8f0b.exe	84
PID 1300 wrote to memory of 3640	1300	a768812c695da8b3d4698d02ff1e3693a7740a0b9108d43546cdfce4c76f8f0b.exe	84
PID 1300 wrote to memory of 3640	1300	a768812c695da8b3d4698d02ff1e3693a7740a0b9108d43546cdfce4c76f8f0b.exe	84
PID 1300 wrote to memory of 3640	1300	a768812c695da8b3d4698d02ff1e3693a7740a0b9108d43546cdfce4c76f8f0b.exe	84
PID 1300 wrote to memory of 3640	1300	a768812c695da8b3d4698d02ff1e3693a7740a0b9108d43546cdfce4c76f8f0b.exe	84
PID 1300 wrote to memory of 3640	1300	a768812c695da8b3d4698d02ff1e3693a7740a0b9108d43546cdfce4c76f8f0b.exe	84
PID 1300 wrote to memory of 3640	1300	a768812c695da8b3d4698d02ff1e3693a7740a0b9108d43546cdfce4c76f8f0b.exe	84
PID 1300 wrote to memory of 3640	1300	a768812c695da8b3d4698d02ff1e3693a7740a0b9108d43546cdfce4c76f8f0b.exe	84

C:\Users\Admin\AppData\Local\Temp\a768812c695da8b3d4698d02ff1e3693a7740a0b9108d43546cdfce4c76f8f0b.exe
"C:\Users\Admin\AppData\Local\Temp\a768812c695da8b3d4698d02ff1e3693a7740a0b9108d43546cdfce4c76f8f0b.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1300
- 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:3640

Network

MITRE ATT&CK Matrix

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Downloads

memory/1300-132-0x00000000001B0000-0x00000000001DC000-memory.dmp

Filesize
176KB

Download
memory/1300-133-0x0000000005080000-0x0000000005624000-memory.dmp

Filesize
5.6MB

Download
memory/3640-135-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3640-136-0x00000000054E0000-0x000000000557C000-memory.dmp

Filesize
624KB

Download
memory/3640-137-0x00000000055F0000-0x0000000005656000-memory.dmp

Filesize
408KB

Download