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-1-5-21-3551809350-4263495960-1443967649-1000\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 2252 set thread context of 2656	2252	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	31

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
2752	schtasks.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2656	jsc.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 2696	2252	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	30
PID 2252 wrote to memory of 2696	2252	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	30
PID 2252 wrote to memory of 2696	2252	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	30
PID 2696 wrote to memory of 2752	2696	cmd.exe	33
PID 2696 wrote to memory of 2752	2696	cmd.exe	33
PID 2696 wrote to memory of 2752	2696	cmd.exe	33
PID 2252 wrote to memory of 2656	2252	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	31
PID 2252 wrote to memory of 2656	2252	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	31
PID 2252 wrote to memory of 2656	2252	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	31
PID 2252 wrote to memory of 2656	2252	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	31
PID 2252 wrote to memory of 2656	2252	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	31
PID 2252 wrote to memory of 2656	2252	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	31
PID 2252 wrote to memory of 2656	2252	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	31
PID 2252 wrote to memory of 2656	2252	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	31
PID 2252 wrote to memory of 2656	2252	9a9a814dc369a5b2318968dbe037d3281dde50b28de210dabf07505077e2c45a.exe	31

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:2252
- 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:2696
- - 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:2752
- 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:2656

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

C:\Users\Admin\AppData\Local\Temp\CabAFE1.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2656-11-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2656-12-0x00000000741CE000-0x00000000741CF000-memory.dmp

Filesize
4KB

Download
memory/2656-5-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2656-4-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2656-3-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2656-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2656-9-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2656-7-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2656-13-0x00000000741C0000-0x00000000748AE000-memory.dmp

Filesize
6.9MB

Download
memory/2656-14-0x00000000741CE000-0x00000000741CF000-memory.dmp

Filesize
4KB

Download
memory/2656-15-0x00000000741C0000-0x00000000748AE000-memory.dmp

Filesize
6.9MB

Download
memory/2656-16-0x00000000741C0000-0x00000000748AE000-memory.dmp

Filesize
6.9MB

Download
memory/2656-2-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2656-33-0x00000000741C0000-0x00000000748AE000-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