asyncrat | 9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a

General

Target

9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.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

C2

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-1-5-21-2636447293-1148739154-93880854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "\"C:\\Users\\Admin\\.nJLsa8v\\svchost.exe\""	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4752 set thread context of 1788	4752	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	85

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
3416	schtasks.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1788	jsc.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4752 wrote to memory of 3176	4752	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	84
PID 4752 wrote to memory of 3176	4752	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	84
PID 4752 wrote to memory of 1788	4752	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	85
PID 4752 wrote to memory of 1788	4752	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	85
PID 4752 wrote to memory of 1788	4752	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	85
PID 4752 wrote to memory of 1788	4752	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	85
PID 4752 wrote to memory of 1788	4752	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	85
PID 4752 wrote to memory of 1788	4752	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	85
PID 4752 wrote to memory of 1788	4752	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	85
PID 4752 wrote to memory of 1788	4752	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	85
PID 3176 wrote to memory of 3416	3176	cmd.exe	87
PID 3176 wrote to memory of 3416	3176	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\9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe
"C:\Users\Admin\AppData\Local\Temp\9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4752
- 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:3176
- - 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:3416
- 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:1788

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

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/1788-2-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1788-3-0x000000007534E000-0x000000007534F000-memory.dmp

Filesize
4KB

Download
memory/1788-4-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/1788-5-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/1788-6-0x000000007534E000-0x000000007534F000-memory.dmp

Filesize
4KB

Download
memory/1788-7-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/1788-10-0x0000000005D60000-0x0000000005DFC000-memory.dmp

Filesize
624KB

Download
memory/1788-11-0x00000000063B0000-0x0000000006954000-memory.dmp

Filesize
5.6MB

Download
memory/1788-12-0x00000000055E0000-0x0000000005646000-memory.dmp

Filesize
408KB

Download
memory/1788-13-0x0000000075340000-0x0000000075AF0000-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