asyncrat | 7ca2ea6fe909eba4e36a7c8bcdc3593160088dffa65a4ddf845f397e6c513ea2

Resubmissions

27-07-2024 10:42

240727-mrw7laxhld 10

27-07-2024 10:39

240727-mp4hwsvemj 10

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
27-07-2024 10:39

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General

Target

RobloxPlayerPatcher.exe
Size

25.0MB
MD5

cf5ff6654fb7ee424211a7b6c9625ab9
SHA1

84080a7813a73b0a2a6e8881c7bd07de048a325c
SHA256

7ca2ea6fe909eba4e36a7c8bcdc3593160088dffa65a4ddf845f397e6c513ea2
SHA512

52aaeac8181db5ad56f8bdb50a0bdc71dce8f75e3a95fc6a2fb9c85f05cf9cf984131f61f8dd1081be055c7b5f25e0a850def1adcdcad433c4aecf2489a3ebb7
SSDEEP

6144:6/M+b97tjVcBqY+TnB8FMNy4yhGuG8fffM5Q:8c9+TBHIGuGGEq

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

qa.riu.one:1420

Mutex

sVDhayko8Fn8

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 448 set thread context of 4912	448	RobloxPlayerPatcher.exe	97

System Location Discovery: System Language Discovery 1 TTPs 6 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RobloxPlayerPatcher.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3928	schtasks.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
448	RobloxPlayerPatcher.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4912	vbc.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 448 wrote to memory of 4912	448	RobloxPlayerPatcher.exe	97
PID 448 wrote to memory of 4912	448	RobloxPlayerPatcher.exe	97
PID 448 wrote to memory of 4912	448	RobloxPlayerPatcher.exe	97
PID 448 wrote to memory of 4912	448	RobloxPlayerPatcher.exe	97
PID 448 wrote to memory of 4912	448	RobloxPlayerPatcher.exe	97
PID 448 wrote to memory of 4912	448	RobloxPlayerPatcher.exe	97
PID 448 wrote to memory of 4912	448	RobloxPlayerPatcher.exe	97
PID 448 wrote to memory of 4912	448	RobloxPlayerPatcher.exe	97
PID 448 wrote to memory of 4972	448	RobloxPlayerPatcher.exe	99
PID 448 wrote to memory of 4972	448	RobloxPlayerPatcher.exe	99
PID 448 wrote to memory of 4972	448	RobloxPlayerPatcher.exe	99
PID 448 wrote to memory of 4804	448	RobloxPlayerPatcher.exe	101
PID 448 wrote to memory of 4804	448	RobloxPlayerPatcher.exe	101
PID 448 wrote to memory of 4804	448	RobloxPlayerPatcher.exe	101
PID 4804 wrote to memory of 3928	4804	cmd.exe	103
PID 4804 wrote to memory of 3928	4804	cmd.exe	103
PID 4804 wrote to memory of 3928	4804	cmd.exe	103
PID 448 wrote to memory of 2536	448	RobloxPlayerPatcher.exe	104
PID 448 wrote to memory of 2536	448	RobloxPlayerPatcher.exe	104
PID 448 wrote to memory of 2536	448	RobloxPlayerPatcher.exe	104

C:\Users\Admin\AppData\Local\Temp\RobloxPlayerPatcher.exe
"C:\Users\Admin\AppData\Local\Temp\RobloxPlayerPatcher.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:448
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4912
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\svc"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4972
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svc\svc.exe'" /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4804
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svc\svc.exe'" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3928
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C copy "C:\Users\Admin\AppData\Local\Temp\RobloxPlayerPatcher.exe" "C:\Users\Admin\AppData\Roaming\svc\svc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2536

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Scripting

T1064

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Scripting

T1064

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

memory/448-6-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/448-7-0x0000000000DD0000-0x0000000000E62000-memory.dmp

Filesize
584KB

Download
memory/448-2-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/448-3-0x0000000005450000-0x00000000059F4000-memory.dmp

Filesize
5.6MB

Download
memory/448-4-0x0000000004F10000-0x0000000004F76000-memory.dmp

Filesize
408KB

Download
memory/448-5-0x000000007505E000-0x000000007505F000-memory.dmp

Filesize
4KB

Download
memory/448-1-0x00000000004D0000-0x000000000050E000-memory.dmp

Filesize
248KB

Download
memory/448-12-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/448-0-0x000000007505E000-0x000000007505F000-memory.dmp

Filesize
4KB

Download
memory/4912-9-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/4912-10-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/4912-8-0x00000000005D0000-0x00000000005E2000-memory.dmp

Filesize
72KB

Download
memory/4912-13-0x0000000005340000-0x00000000053DC000-memory.dmp

Filesize
624KB

Download
memory/4912-14-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/4912-15-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads