asyncrat | fe0f54c271c3e45ca11e05b597de2cdfa6c1bc85589233c3e21b14bb7424f290

Analysis

max time kernel
101s
max time network
152s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
21-08-2024 12:03

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General

Target

600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe
Size

331KB
MD5

63b427f3875eaf7475491877a49f71c5
SHA1

8d6a1d3ce30eec4284cc3303fdf12a22a12f2a82
SHA256

600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1
SHA512

c9ee7f62f028aafe4a2753e50c61a1ae25816d586f6eb080d6ff20be0f7d27f8b5b384ad473625042e76b2e708cf0407e52d8a6fda5c9f1ffc0caf40a4636a3c
SSDEEP

6144:eEjIabdDyAnk2S5dE1hQqX9lecEEMH9O1BNI:eAIabd7nkc1h9X9Mo7I

Score

10^/10

asyncrat stealerium default collection credential_access discovery persistence privilege_escalation rat stealer

Malware Config

Extracted

Family

asyncrat

Botnet

Default

157.20.182.172:3232

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
Stealerium
An open source info stealer written in C# first seen in May 2022.
stealer stealerium

Suspicious use of NtCreateUserProcessOtherParentProcess 2 IoCs

description	pid	Process	procid_target
PID 3852 created 3292	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	52
PID 3852 created 3292	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	52

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/3668-2-0x0000028E30D00000-0x0000028E30D16000-memory.dmp	family_asyncrat

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3761892313-3378554128-2287991803-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	notepad.exe
Key opened	\REGISTRY\USER\S-1-5-21-3761892313-3378554128-2287991803-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	notepad.exe
Key opened	\REGISTRY\USER\S-1-5-21-3761892313-3378554128-2287991803-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	notepad.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	ip-api.com
4	icanhazip.com

Looks up geolocation information via web service
Uses a legitimate geolocation service to find the infected system's geolocation info.
Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 2 IoCs

Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

discovery

Wi-Fi Discovery

T1016.002

pid	Process
4584	cmd.exe
4232	netsh.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	notepad.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	notepad.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe
3668	notepad.exe
3668	notepad.exe
3668	notepad.exe
3668	notepad.exe
3668	notepad.exe
3668	notepad.exe
3668	notepad.exe
3668	notepad.exe
3668	notepad.exe
3668	notepad.exe
3668	notepad.exe
3668	notepad.exe
3668	notepad.exe
3668	notepad.exe
3668	notepad.exe
3668	notepad.exe
3668	notepad.exe
3668	notepad.exe
3668	notepad.exe
3668	notepad.exe
3668	notepad.exe
3668	notepad.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 2 IoCs

pid	Process
3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe
3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3668	notepad.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82
PID 3852 wrote to memory of 3668	3852	600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe	82

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3761892313-3378554128-2287991803-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	notepad.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3761892313-3378554128-2287991803-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	notepad.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3292
- C:\Users\Admin\AppData\Local\Temp\600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe
  "C:\Users\Admin\AppData\Local\Temp\600ea8be786d5acc5fa71c8dd19297049a4e9f1fe6a597c2ebcc9785acd8bdd1.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
  - Suspicious use of WriteProcessMemory
  PID:3852
- C:\Windows\System32\notepad.exe
  C:\Windows\System32\notepad.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3668
- - C:\Windows\System32\cmd.exe
    "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
    3⤵
    - System Network Configuration Discovery: Wi-Fi Discovery
    PID:4584
  - - C:\Windows\System32\chcp.com
      chcp 65001
      4⤵
      PID:480
  - - C:\Windows\System32\netsh.exe
      netsh wlan show profile
      4⤵
      Event Triggered Execution: Netsh Helper DLL
      System Network Configuration Discovery: Wi-Fi Discovery
      PID:4232
  - - C:\Windows\System32\findstr.exe
      findstr All
      4⤵
      PID:2096
- - C:\Windows\System32\cmd.exe
    "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
    3⤵
    PID:3672
  - - C:\Windows\System32\chcp.com
      chcp 65001
      4⤵
      PID:2832
  - - C:\Windows\System32\netsh.exe
      netsh wlan show networks mode=bssid
      4⤵
      Event Triggered Execution: Netsh Helper DLL
      PID:2092

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Wi-Fi Discovery

T1016.002

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\c405fdbbc4d9d368f943cd54bae2d593\Admin@AAPRWBJV_en-US\System\Process.txt

Filesize
4KB

MD5
fcb1b6a46d442caf8d27e801875c0943

SHA1
e15b33fb477d955aa771bb1d841451535b3689b1

SHA256
2e2c7895cdfc616c3784824856fe2642a5d0a4b5e9a7a1e3dc32e1ff8d5e02ec

SHA512
6affd748ea0534acc1d3783e0ecf5613d0d4f219e04f2e3c9b484bcd87c7ea7ceafabf60ef00bc901d8d9eb46865547ef407f5fc7b09e18c1967c16f37d20e9f

Download Submit
memory/3668-12-0x0000028E49DB0000-0x0000028E49F38000-memory.dmp

Filesize
1.5MB

Download
memory/3668-199-0x00007FFF03640000-0x00007FFF04102000-memory.dmp

Filesize
10.8MB

Download
memory/3668-11-0x0000028E49D30000-0x0000028E49DA6000-memory.dmp

Filesize
472KB

Download
memory/3668-4-0x00007FFF03640000-0x00007FFF04102000-memory.dmp

Filesize
10.8MB

Download
memory/3668-7-0x00007FFF03643000-0x00007FFF03645000-memory.dmp

Filesize
8KB

Download
memory/3668-8-0x00007FFF03640000-0x00007FFF04102000-memory.dmp

Filesize
10.8MB

Download
memory/3668-9-0x00007FFF03640000-0x00007FFF04102000-memory.dmp

Filesize
10.8MB

Download
memory/3668-10-0x00007FFF03640000-0x00007FFF04102000-memory.dmp

Filesize
10.8MB

Download
memory/3668-3-0x00007FFF03640000-0x00007FFF04102000-memory.dmp

Filesize
10.8MB

Download
memory/3668-2-0x0000028E30D00000-0x0000028E30D16000-memory.dmp

Filesize
88KB

Download
memory/3668-18-0x0000028E495E0000-0x0000028E495EA000-memory.dmp

Filesize
40KB

Download
memory/3668-13-0x0000028E495C0000-0x0000028E495DE000-memory.dmp

Filesize
120KB

Download
memory/3668-19-0x00007FFF03640000-0x00007FFF04102000-memory.dmp

Filesize
10.8MB

Download
memory/3668-1-0x00007FFF03643000-0x00007FFF03645000-memory.dmp

Filesize
8KB

Download
memory/3668-155-0x00007FFF03640000-0x00007FFF04102000-memory.dmp

Filesize
10.8MB

Download
memory/3668-159-0x00007FFF03640000-0x00007FFF04102000-memory.dmp

Filesize
10.8MB

Download
memory/3668-166-0x0000028E4A380000-0x0000028E4A3FA000-memory.dmp

Filesize
488KB

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memory/3668-198-0x00007FFF03640000-0x00007FFF04102000-memory.dmp

Filesize
10.8MB

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memory/3668-0-0x0000028E2F150000-0x0000028E2F166000-memory.dmp

Filesize
88KB

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