asyncrat | 11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9

General

Target

11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe
Size

501KB
MD5

e619fff5751a713cf445da24a7a12c94
SHA1

9fc67a572c69158541aaaab0264607ada70a408c
SHA256

11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9
SHA512

07420c9a0336ae350567abf68d7f5ef52b34c4c010dbabae6693bf27fd5a50a8b2b16696a3bed7bdc846d542eb04ce6102d5387484f352f9d09c8789ccfcd9ae
SSDEEP

12288:dFLn2Q1hI43dnpz9xDhrGooNUlN0HBcSBkAoJtMpbqrI118Lw3PTf:I43dpzvDhfoigC

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

212.15.49.155:4449

Mutex

zuvtbmtrjnwecuy

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
Asyncrat family
asyncrat

Loads dropped DLL 1 IoCs

Processes:

11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe

pid	Process
4312	11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe

description	pid	Process	procid_target
PID 4312 set thread context of 5064	4312	11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe	85

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

Processes:

11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exeMSBuild.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

MSBuild.exe

pid	Process
5064	MSBuild.exe
5064	MSBuild.exe
5064	MSBuild.exe
5064	MSBuild.exe
5064	MSBuild.exe
5064	MSBuild.exe
5064	MSBuild.exe
5064	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

MSBuild.exe

description	pid	Process
Token: SeDebugPrivilege	5064	MSBuild.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

MSBuild.exe

pid	Process
5064	MSBuild.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe

description	pid	Process	procid_target
PID 4312 wrote to memory of 5064	4312	11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe	85
PID 4312 wrote to memory of 5064	4312	11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe	85
PID 4312 wrote to memory of 5064	4312	11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe	85
PID 4312 wrote to memory of 5064	4312	11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe	85
PID 4312 wrote to memory of 5064	4312	11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe	85
PID 4312 wrote to memory of 5064	4312	11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe	85
PID 4312 wrote to memory of 5064	4312	11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe	85
PID 4312 wrote to memory of 5064	4312	11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe	85
PID 4312 wrote to memory of 5064	4312	11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe	85
PID 4312 wrote to memory of 5064	4312	11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe	85
PID 4312 wrote to memory of 5064	4312	11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe	85

C:\Users\Admin\AppData\Local\Temp\11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe
"C:\Users\Admin\AppData\Local\Temp\11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4312
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:5064

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\Roaming\gdi32.dll

Filesize
256KB

MD5
8d662564d514751028c65d96c696271f

SHA1
8e27943b7b901a808d39a7ee6977e1d3769a15fb

SHA256
86af5d6ee9d824ec2dfa73f44b9ae285d33e9748a8b6dbd4333d1ae06cf6f72b

SHA512
0a5460bbe7f43db560a08e508381613098a28de208a9d85c9c41fffa62b1e0299389a575dfa2b78767d3dd0fc73f0c88677ca32d7fe4e87698def1386cf35bef

Download Submit
memory/4312-19-0x0000000002440000-0x000000000244A000-memory.dmp

Filesize
40KB

Download
memory/4312-1-0x00000000000C0000-0x0000000000146000-memory.dmp

Filesize
536KB

Download
memory/4312-2-0x0000000002620000-0x0000000002626000-memory.dmp

Filesize
24KB

Download
memory/4312-3-0x000000000A6F0000-0x000000000AC1C000-memory.dmp

Filesize
5.2MB

Download
memory/4312-4-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/4312-21-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/4312-13-0x000000000B1D0000-0x000000000B774000-memory.dmp

Filesize
5.6MB

Download
memory/4312-0-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/4312-12-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/4312-15-0x000000000A5E0000-0x000000000A672000-memory.dmp

Filesize
584KB

Download
memory/5064-14-0x00000000004F0000-0x000000000051C000-memory.dmp

Filesize
176KB

Download
memory/5064-18-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/5064-17-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/5064-11-0x00000000004F0000-0x000000000052B000-memory.dmp

Filesize
236KB

Download
memory/5064-22-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/5064-23-0x00000000744D0000-0x0000000074C80000-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