asyncrat | f927621a7bd2548f85a44695c585163e5d258ba8d2c81eb1d3b00b237443e3cf

Analysis

max time kernel
139s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-01-2025 02:51

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General

Target

JaffaCakes118_f50641a335b856c0a7b7d0c7e0f56b45.ps1
Size

84KB
MD5

f50641a335b856c0a7b7d0c7e0f56b45
SHA1

4972cc2ced7817a0a3556997a3718025b35a407f
SHA256

f927621a7bd2548f85a44695c585163e5d258ba8d2c81eb1d3b00b237443e3cf
SHA512

e73be5e4bf65859d71f3d850c6aa11e7e8ba3f929283a78cfadc6cedde722b3e7b53b5090ed7ecfa4081bffa3ab3b4128c9d846973cda3d015e8f34c13f25d2f
SSDEEP

1536:TcSoPFh67RiCEPzo/rJV4Jx59PwpMvj7QInrLdJg9mRY1tW:kPE9WJ1PRnrJJgUGW

Score

10^/10

asyncrat default discovery execution rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

rick63.publicvm.com:5900

Mutex

DcRatMutex_qwqdanchun

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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DesktopLogin32bits.vbs	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1136 set thread context of 4432	1136	powershell.exe	84

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1136	powershell.exe

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	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1136	powershell.exe
1136	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1136	powershell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1136 wrote to memory of 4432	1136	powershell.exe	84
PID 1136 wrote to memory of 4432	1136	powershell.exe	84
PID 1136 wrote to memory of 4432	1136	powershell.exe	84
PID 1136 wrote to memory of 4432	1136	powershell.exe	84
PID 1136 wrote to memory of 4432	1136	powershell.exe	84
PID 1136 wrote to memory of 4432	1136	powershell.exe	84
PID 1136 wrote to memory of 4432	1136	powershell.exe	84
PID 1136 wrote to memory of 4432	1136	powershell.exe	84

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f50641a335b856c0a7b7d0c7e0f56b45.ps1
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1136
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4432

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yfezz2ug.gsg.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1136-14-0x00000224F55A0000-0x00000224F5AC8000-memory.dmp

Filesize
5.2MB

Download
memory/1136-6-0x00000224F4A60000-0x00000224F4A82000-memory.dmp

Filesize
136KB

Download
memory/1136-11-0x00007FFA5DF40000-0x00007FFA5EA01000-memory.dmp

Filesize
10.8MB

Download
memory/1136-12-0x00007FFA5DF40000-0x00007FFA5EA01000-memory.dmp

Filesize
10.8MB

Download
memory/1136-13-0x00000224F4FF0000-0x00000224F5066000-memory.dmp

Filesize
472KB

Download
memory/1136-0-0x00007FFA5DF43000-0x00007FFA5DF45000-memory.dmp

Filesize
8KB

Download
memory/1136-16-0x00000224F4DB0000-0x00000224F4DBA000-memory.dmp

Filesize
40KB

Download
memory/1136-20-0x00007FFA5DF40000-0x00007FFA5EA01000-memory.dmp

Filesize
10.8MB

Download
memory/4432-17-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4432-21-0x000000007542E000-0x000000007542F000-memory.dmp

Filesize
4KB

Download
memory/4432-22-0x0000000075420000-0x0000000075BD0000-memory.dmp

Filesize
7.7MB

Download
memory/4432-23-0x000000007542E000-0x000000007542F000-memory.dmp

Filesize
4KB

Download
memory/4432-24-0x0000000075420000-0x0000000075BD0000-memory.dmp

Filesize
7.7MB

Download