asyncrat | 2ac2e1571a16168fb4ca930eb4b1a27fdbbff15f87384c13565f44fc22c4a8c7

Analysis

max time kernel
148s
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
08-12-2024 00:14

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General

Target

latencyx.exe
Size

45KB
MD5

f4c46528fb0b51636d9c5860e0e4048e
SHA1

76c0d55950b8e8995f0cc75d35f620f39d13ae1b
SHA256

2ac2e1571a16168fb4ca930eb4b1a27fdbbff15f87384c13565f44fc22c4a8c7
SHA512

aa6f1833ff1367bf938c2d52227707fb64c6ceaa5acbffd879150b094fc5a6b163e777ddbb7cc6cb33c3c15ec61ae7dbfc8c6462cf574bff43c88bf207fc80b9
SSDEEP

768:GuEs9THvkHCWU0neImo2q88maPol53APIkzjb+gX3i90yHCFB/JkAX1kBDZSx:GuEs9THc72cfob3lk3bBXS908CFnkAXh

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

t1euvzy.localto.net:2171

t1euvzy.localto.net:55065

Mutex

ZpDC6oZwIVKp

Attributes

delay
3
install
false
install_file
dwmm.exe
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

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	latencyx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4764	timeout.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4004	latencyx.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4004 wrote to memory of 3768	4004	latencyx.exe	101
PID 4004 wrote to memory of 3768	4004	latencyx.exe	101
PID 4004 wrote to memory of 3768	4004	latencyx.exe	101
PID 3768 wrote to memory of 4764	3768	cmd.exe	103
PID 3768 wrote to memory of 4764	3768	cmd.exe	103
PID 3768 wrote to memory of 4764	3768	cmd.exe	103

C:\Users\Admin\AppData\Local\Temp\latencyx.exe
"C:\Users\Admin\AppData\Local\Temp\latencyx.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4004
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp549E.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3768
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

C:\Users\Admin\AppData\Local\Temp\tmp549E.tmp.bat

Filesize
160B

MD5
7faa55b41e734931a1676876db1cb128

SHA1
7a4f05bb9a587069a152ead8f6bad35113ec716d

SHA256
72c7c0f541e0f6840638299a59a5091a9227195570bf721e603b21f376ee25ca

SHA512
e627a4da3d3551b25f3d3a713725bd5ed2515da4d945905f0c9392d4a9651e7862bddb8d12d68ac269a6b909e626d30db49b2b5e6d637c50e035b291e59ab576

Download Submit
memory/4004-8-0x0000000005340000-0x00000000053A6000-memory.dmp

Filesize
408KB

Download
memory/4004-2-0x0000000074C50000-0x0000000075400000-memory.dmp

Filesize
7.7MB

Download
memory/4004-3-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

Filesize
4KB

Download
memory/4004-6-0x00000000050F0000-0x000000000518C000-memory.dmp

Filesize
624KB

Download
memory/4004-7-0x0000000005880000-0x0000000005E24000-memory.dmp

Filesize
5.6MB

Download
memory/4004-0-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

Filesize
4KB

Download
memory/4004-9-0x0000000074C50000-0x0000000075400000-memory.dmp

Filesize
7.7MB

Download
memory/4004-10-0x0000000000A60000-0x0000000000AD6000-memory.dmp

Filesize
472KB

Download
memory/4004-11-0x00000000009E0000-0x0000000000A44000-memory.dmp

Filesize
400KB

Download
memory/4004-12-0x0000000005590000-0x00000000055AE000-memory.dmp

Filesize
120KB

Download
memory/4004-1-0x00000000000E0000-0x00000000000F2000-memory.dmp

Filesize
72KB

Download
memory/4004-17-0x0000000074C50000-0x0000000075400000-memory.dmp

Filesize
7.7MB

Download