asyncrat | 9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a

Analysis

max time kernel
145s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
25-07-2024 01:23

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General

Target

LisectAVT_2403002B_398.exe
Size

4.1MB
MD5

015eaec62e39a031067323544f56a5cf
SHA1

f36587ba44c4feec2137aa6768719a1281ed0ba8
SHA256

9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a
SHA512

2da3ff84055021591fc6a7dbcb46a4fbd927aa6ae38da43d8d0620391aef8df3ae0a2edc8305c7720f8e6f0598bd8fe11e8b75b97421eace84365dd405d5de64
SSDEEP

49152:VyO1MDMUZNRz1YgO8jXpF4qQqET6JnxgFxMhx3x3gB++xG:YNRrFoDuwg0G

Score

10^/10

asyncrat default discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

2.0.0

Botnet

Default

webwhatsapp.cc:65503

Mutex

ShiningForceRatMutex_cs_cs_cs

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

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-1-5-21-1176886754-713327781-2233697964-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "\"C:\\Users\\Admin\\.nJLsa8v\\svchost.exe\""	LisectAVT_2403002B_398.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3232 set thread context of 4908	3232	LisectAVT_2403002B_398.exe	86

System Location Discovery: System Language Discovery 1 TTPs 1 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	jsc.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
1644	schtasks.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4908	jsc.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3232 wrote to memory of 2300	3232	LisectAVT_2403002B_398.exe	84
PID 3232 wrote to memory of 2300	3232	LisectAVT_2403002B_398.exe	84
PID 3232 wrote to memory of 4908	3232	LisectAVT_2403002B_398.exe	86
PID 3232 wrote to memory of 4908	3232	LisectAVT_2403002B_398.exe	86
PID 3232 wrote to memory of 4908	3232	LisectAVT_2403002B_398.exe	86
PID 3232 wrote to memory of 4908	3232	LisectAVT_2403002B_398.exe	86
PID 3232 wrote to memory of 4908	3232	LisectAVT_2403002B_398.exe	86
PID 3232 wrote to memory of 4908	3232	LisectAVT_2403002B_398.exe	86
PID 3232 wrote to memory of 4908	3232	LisectAVT_2403002B_398.exe	86
PID 3232 wrote to memory of 4908	3232	LisectAVT_2403002B_398.exe	86
PID 2300 wrote to memory of 1644	2300	cmd.exe	87
PID 2300 wrote to memory of 1644	2300	cmd.exe	87

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\LisectAVT_2403002B_398.exe
"C:\Users\Admin\AppData\Local\Temp\LisectAVT_2403002B_398.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3232
- C:\Windows\SYSTEM32\cmd.exe
  "cmd" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\.nJLsa8v\svchost.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2300
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\.nJLsa8v\svchost.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1644
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4908-3-0x00000000748FE000-0x00000000748FF000-memory.dmp

Filesize
4KB

Download
memory/4908-2-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4908-4-0x00000000748F0000-0x00000000750A0000-memory.dmp

Filesize
7.7MB

Download
memory/4908-5-0x00000000748F0000-0x00000000750A0000-memory.dmp

Filesize
7.7MB

Download
memory/4908-6-0x00000000748FE000-0x00000000748FF000-memory.dmp

Filesize
4KB

Download
memory/4908-7-0x00000000748F0000-0x00000000750A0000-memory.dmp

Filesize
7.7MB

Download
memory/4908-8-0x00000000748F0000-0x00000000750A0000-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