asyncrat | a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983e

Analysis

max time kernel
115s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-11-2024 10:57

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General

Target

a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exe
Size

1.3MB
MD5

6511ba24b6f6898fe498f9d263ebf700
SHA1

d7baa1f7af6a0b68f2299ac132046a3833b5d551
SHA256

a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983e
SHA512

0bd20922dc985d14238b4e5b4d282c5564aadc52f2ae0ed1e4ad6aa7a864bd1a4e1bfc2af96e3fc8da9b17b21522f1f69727a051f3d46f4662fd2b6979972086
SSDEEP

24576:prEh3ZijTdfoXBZ4K1BunL32SenhydzeN1PXjmc/muTM7Eyv/fkVvMU:pcZigZ4KX8D2BN1PhmZHv/cB

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

AWS | 3Losh

Botnet

Default

silenceme.duckdns.org:6606

silenceme.duckdns.org:7707

silenceme.duckdns.org:8808

Mutex

AsyncMutex_alosh

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
Asyncrat family
asyncrat

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

Processes:

a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exe

description	pid	Process	procid_target
PID 628 created 3372	628	a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exe	56

Drops startup file 1 IoCs

Processes:

a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exe

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Path.vbs	a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exe

description	pid	Process	procid_target
PID 628 set thread context of 1752	628	a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exe	88

System Location Discovery: System Language Discovery 1 TTPs 2 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

Processes:

a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exeInstallUtil.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exe

pid	Process
628	a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exeInstallUtil.exe

description	pid	Process
Token: SeDebugPrivilege	628	a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exe
Token: SeDebugPrivilege	628	a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exe
Token: SeDebugPrivilege	1752	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exe

description	pid	Process	procid_target
PID 628 wrote to memory of 1752	628	a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exe	88
PID 628 wrote to memory of 1752	628	a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exe	88
PID 628 wrote to memory of 1752	628	a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exe	88
PID 628 wrote to memory of 1752	628	a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exe	88
PID 628 wrote to memory of 1752	628	a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exe	88
PID 628 wrote to memory of 1752	628	a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exe	88
PID 628 wrote to memory of 1752	628	a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exe	88
PID 628 wrote to memory of 1752	628	a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exe	88

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3372
- C:\Users\Admin\AppData\Local\Temp\a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exe
  "C:\Users\Admin\AppData\Local\Temp\a584a7be7d939b89cfa0507508a96b6ef245283b77b455ffb6274b99e780983eN.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Drops startup file
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:628
- 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
  - Suspicious use of AdjustPrivilegeToken
  PID:1752

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

memory/628-0-0x0000000074BFE000-0x0000000074BFF000-memory.dmp

Filesize
4KB

Download
memory/628-1-0x0000000000750000-0x00000000008A2000-memory.dmp

Filesize
1.3MB

Download
memory/628-3-0x0000000005250000-0x000000000533A000-memory.dmp

Filesize
936KB

Download
memory/628-2-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/628-4-0x0000000005920000-0x0000000005EC4000-memory.dmp

Filesize
5.6MB

Download
memory/628-5-0x0000000005470000-0x0000000005502000-memory.dmp

Filesize
584KB

Download
memory/628-25-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-31-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-49-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-69-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-67-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-63-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-61-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-59-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-57-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-55-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-53-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-51-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-65-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-47-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-45-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-43-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-41-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-37-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-35-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-33-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-29-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-27-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-23-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-21-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-17-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-15-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-13-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-11-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-9-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-39-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-7-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-6-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-19-0x0000000005250000-0x0000000005334000-memory.dmp

Filesize
912KB

Download
memory/628-1080-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/628-1082-0x00000000055D0000-0x000000000561C000-memory.dmp

Filesize
304KB

Download
memory/628-1081-0x0000000005570000-0x00000000055CC000-memory.dmp

Filesize
368KB

Download
memory/628-1086-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/628-1087-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/628-1089-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/628-1088-0x0000000005670000-0x00000000056C4000-memory.dmp

Filesize
336KB

Download
memory/628-1094-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/1752-1095-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/1752-1093-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1752-1096-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/1752-1097-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/1752-1098-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download