asyncrat | 970e81aeea72951190a05b9584ec9c9032c0092cfa93044fdc2d15470dbdc800

General

Target

970e81aeea72951190a05b9584ec9c9032c0092cfa93044fdc2d15470dbdc800.exe
Size

569KB
MD5

a2394da8278d3f6809953b56dd204af5
SHA1

4d051f54e91cce1b676226871deb0102862c77da
SHA256

970e81aeea72951190a05b9584ec9c9032c0092cfa93044fdc2d15470dbdc800
SHA512

a1ee4fc1684e7e544b5e7017cef2eaa085839eac96497697cbde7b006af5c197aa50e426dd464f0760048405dacf865d133187e3f2eb6339cb5689baa8274f4f
SSDEEP

6144:PC4w8juap56y9dg4sIo9ZCf6YRZDYooV3FtlyPG4wYeVKiEgQaratgM/:Knapvg4sz9dYRZsx1tvpEVar3M/

Score

10^/10

asyncrat 1 discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

1

C2

185.157.160.136:1973

Mutex

df4Rtg34dFjwr7ujp3

Attributes

delay
38
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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\mk = "C:\\Users\\Admin\\AppData\\Roaming\\gh\\hn.exe"	970e81aeea72951190a05b9584ec9c9032c0092cfa93044fdc2d15470dbdc800.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3016 set thread context of 3008	3016	970e81aeea72951190a05b9584ec9c9032c0092cfa93044fdc2d15470dbdc800.exe	29

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	970e81aeea72951190a05b9584ec9c9032c0092cfa93044fdc2d15470dbdc800.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3016	970e81aeea72951190a05b9584ec9c9032c0092cfa93044fdc2d15470dbdc800.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 3008	3016	970e81aeea72951190a05b9584ec9c9032c0092cfa93044fdc2d15470dbdc800.exe	29
PID 3016 wrote to memory of 3008	3016	970e81aeea72951190a05b9584ec9c9032c0092cfa93044fdc2d15470dbdc800.exe	29
PID 3016 wrote to memory of 3008	3016	970e81aeea72951190a05b9584ec9c9032c0092cfa93044fdc2d15470dbdc800.exe	29
PID 3016 wrote to memory of 3008	3016	970e81aeea72951190a05b9584ec9c9032c0092cfa93044fdc2d15470dbdc800.exe	29
PID 3016 wrote to memory of 3008	3016	970e81aeea72951190a05b9584ec9c9032c0092cfa93044fdc2d15470dbdc800.exe	29
PID 3016 wrote to memory of 3008	3016	970e81aeea72951190a05b9584ec9c9032c0092cfa93044fdc2d15470dbdc800.exe	29
PID 3016 wrote to memory of 3008	3016	970e81aeea72951190a05b9584ec9c9032c0092cfa93044fdc2d15470dbdc800.exe	29
PID 3016 wrote to memory of 3008	3016	970e81aeea72951190a05b9584ec9c9032c0092cfa93044fdc2d15470dbdc800.exe	29
PID 3016 wrote to memory of 3008	3016	970e81aeea72951190a05b9584ec9c9032c0092cfa93044fdc2d15470dbdc800.exe	29
PID 3016 wrote to memory of 3008	3016	970e81aeea72951190a05b9584ec9c9032c0092cfa93044fdc2d15470dbdc800.exe	29
PID 3016 wrote to memory of 3008	3016	970e81aeea72951190a05b9584ec9c9032c0092cfa93044fdc2d15470dbdc800.exe	29
PID 3016 wrote to memory of 3008	3016	970e81aeea72951190a05b9584ec9c9032c0092cfa93044fdc2d15470dbdc800.exe	29

C:\Users\Admin\AppData\Local\Temp\970e81aeea72951190a05b9584ec9c9032c0092cfa93044fdc2d15470dbdc800.exe
"C:\Users\Admin\AppData\Local\Temp\970e81aeea72951190a05b9584ec9c9032c0092cfa93044fdc2d15470dbdc800.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3008

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

memory/3008-4-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3008-8-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3008-7-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3008-9-0x000000007437E000-0x000000007437F000-memory.dmp

Filesize
4KB

Download
memory/3008-10-0x000000007437E000-0x000000007437F000-memory.dmp

Filesize
4KB

Download
memory/3008-11-0x0000000074370000-0x0000000074A5E000-memory.dmp

Filesize
6.9MB

Download
memory/3008-12-0x0000000074370000-0x0000000074A5E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads