asyncrat | 53965f472183c0e8ec94202b3ba0716faf8e095e073a688f3396c4b8dcca6f30

Analysis

max time kernel
146s
max time network
144s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 13:28

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General

Target

Invoice-BL. Payment TT $ 28,945.99.exe
Size

785KB
MD5

54dbe54846a05d5a1677a5ab2970bd6a
SHA1

4ea5792f72f540c58a54f5cfce9de19eb05ffaaa
SHA256

53965f472183c0e8ec94202b3ba0716faf8e095e073a688f3396c4b8dcca6f30
SHA512

f4778a6162b01bcfbb4d26b4686c9caea803b995b74d9f1c080eda0a431820827ddd9601265c23c1220de36faeb75c5e3b738b8adadf1ca76a5a350552b5bf4a
SSDEEP

12288:5NMKhM39TXsTAiYRH3wbrccYpea/jiAsRaT21tKkxRzb53/x6Io5kZaiB:HMaciYlwkp5/o0i1tVRp6IfB

Score

10^/10

asyncrat stormkitty default discovery execution persistence privilege_escalation rat spyware stealer

Malware Config

Extracted

Family

asyncrat

Botnet

Default

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

https://api.telegram.org/bot6331768257:AAE1Rrc3F4A-nTJkfXEukNBriTate8i72L8/sendMessage?chat_id=5287158069

Mutex

AsyncMutex_6SI8OkPnk

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
StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 5 IoCs

resource	yara_rule
behavioral1/memory/1516-24-0x0000000000400000-0x0000000000432000-memory.dmp	family_stormkitty
behavioral1/memory/1516-26-0x0000000000400000-0x0000000000432000-memory.dmp	family_stormkitty
behavioral1/memory/1516-23-0x0000000000400000-0x0000000000432000-memory.dmp	family_stormkitty
behavioral1/memory/1516-20-0x0000000000400000-0x0000000000432000-memory.dmp	family_stormkitty
behavioral1/memory/1516-18-0x0000000000400000-0x0000000000432000-memory.dmp	family_stormkitty

Stormkitty family
stormkitty

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2820	powershell.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Drops desktop.ini file(s) 6 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\81aebf779e5442514ac9e2796872fd18\Admin@ZQABOPWE_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	Invoice-BL. Payment TT $ 28,945.99.exe
File opened for modification	C:\Users\Admin\AppData\Local\81aebf779e5442514ac9e2796872fd18\Admin@ZQABOPWE_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	Invoice-BL. Payment TT $ 28,945.99.exe
File created	C:\Users\Admin\AppData\Local\81aebf779e5442514ac9e2796872fd18\Admin@ZQABOPWE_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	Invoice-BL. Payment TT $ 28,945.99.exe
File opened for modification	C:\Users\Admin\AppData\Local\81aebf779e5442514ac9e2796872fd18\Admin@ZQABOPWE_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	Invoice-BL. Payment TT $ 28,945.99.exe
File created	C:\Users\Admin\AppData\Local\81aebf779e5442514ac9e2796872fd18\Admin@ZQABOPWE_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	Invoice-BL. Payment TT $ 28,945.99.exe
File created	C:\Users\Admin\AppData\Local\81aebf779e5442514ac9e2796872fd18\Admin@ZQABOPWE_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	Invoice-BL. Payment TT $ 28,945.99.exe

Looks up external IP address via web service 1 IoCs

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

flow	ioc
4	icanhazip.com

Looks up geolocation information via web service
Uses a legitimate geolocation service to find the infected system's geolocation info.

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2656 set thread context of 1516	2656	Invoice-BL. Payment TT $ 28,945.99.exe	34

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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 opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 11 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	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Invoice-BL. Payment TT $ 28,945.99.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	findstr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Invoice-BL. Payment TT $ 28,945.99.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com

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
1300	cmd.exe
2220	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Invoice-BL. Payment TT $ 28,945.99.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	Invoice-BL. Payment TT $ 28,945.99.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
2712	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2820	powershell.exe
1516	Invoice-BL. Payment TT $ 28,945.99.exe
1516	Invoice-BL. Payment TT $ 28,945.99.exe
1516	Invoice-BL. Payment TT $ 28,945.99.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1516	Invoice-BL. Payment TT $ 28,945.99.exe
Token: SeDebugPrivilege	2820	powershell.exe

Suspicious use of WriteProcessMemory 45 IoCs

description	pid	Process	procid_target
PID 2656 wrote to memory of 2820	2656	Invoice-BL. Payment TT $ 28,945.99.exe	30
PID 2656 wrote to memory of 2820	2656	Invoice-BL. Payment TT $ 28,945.99.exe	30
PID 2656 wrote to memory of 2820	2656	Invoice-BL. Payment TT $ 28,945.99.exe	30
PID 2656 wrote to memory of 2820	2656	Invoice-BL. Payment TT $ 28,945.99.exe	30
PID 2656 wrote to memory of 2712	2656	Invoice-BL. Payment TT $ 28,945.99.exe	32
PID 2656 wrote to memory of 2712	2656	Invoice-BL. Payment TT $ 28,945.99.exe	32
PID 2656 wrote to memory of 2712	2656	Invoice-BL. Payment TT $ 28,945.99.exe	32
PID 2656 wrote to memory of 2712	2656	Invoice-BL. Payment TT $ 28,945.99.exe	32
PID 2656 wrote to memory of 1516	2656	Invoice-BL. Payment TT $ 28,945.99.exe	34
PID 2656 wrote to memory of 1516	2656	Invoice-BL. Payment TT $ 28,945.99.exe	34
PID 2656 wrote to memory of 1516	2656	Invoice-BL. Payment TT $ 28,945.99.exe	34
PID 2656 wrote to memory of 1516	2656	Invoice-BL. Payment TT $ 28,945.99.exe	34
PID 2656 wrote to memory of 1516	2656	Invoice-BL. Payment TT $ 28,945.99.exe	34
PID 2656 wrote to memory of 1516	2656	Invoice-BL. Payment TT $ 28,945.99.exe	34
PID 2656 wrote to memory of 1516	2656	Invoice-BL. Payment TT $ 28,945.99.exe	34
PID 2656 wrote to memory of 1516	2656	Invoice-BL. Payment TT $ 28,945.99.exe	34
PID 2656 wrote to memory of 1516	2656	Invoice-BL. Payment TT $ 28,945.99.exe	34
PID 1516 wrote to memory of 1300	1516	Invoice-BL. Payment TT $ 28,945.99.exe	36
PID 1516 wrote to memory of 1300	1516	Invoice-BL. Payment TT $ 28,945.99.exe	36
PID 1516 wrote to memory of 1300	1516	Invoice-BL. Payment TT $ 28,945.99.exe	36
PID 1516 wrote to memory of 1300	1516	Invoice-BL. Payment TT $ 28,945.99.exe	36
PID 1300 wrote to memory of 664	1300	cmd.exe	38
PID 1300 wrote to memory of 664	1300	cmd.exe	38
PID 1300 wrote to memory of 664	1300	cmd.exe	38
PID 1300 wrote to memory of 664	1300	cmd.exe	38
PID 1300 wrote to memory of 2220	1300	cmd.exe	39
PID 1300 wrote to memory of 2220	1300	cmd.exe	39
PID 1300 wrote to memory of 2220	1300	cmd.exe	39
PID 1300 wrote to memory of 2220	1300	cmd.exe	39
PID 1300 wrote to memory of 2156	1300	cmd.exe	40
PID 1300 wrote to memory of 2156	1300	cmd.exe	40
PID 1300 wrote to memory of 2156	1300	cmd.exe	40
PID 1300 wrote to memory of 2156	1300	cmd.exe	40
PID 1516 wrote to memory of 2504	1516	Invoice-BL. Payment TT $ 28,945.99.exe	41
PID 1516 wrote to memory of 2504	1516	Invoice-BL. Payment TT $ 28,945.99.exe	41
PID 1516 wrote to memory of 2504	1516	Invoice-BL. Payment TT $ 28,945.99.exe	41
PID 1516 wrote to memory of 2504	1516	Invoice-BL. Payment TT $ 28,945.99.exe	41
PID 2504 wrote to memory of 956	2504	cmd.exe	43
PID 2504 wrote to memory of 956	2504	cmd.exe	43
PID 2504 wrote to memory of 956	2504	cmd.exe	43
PID 2504 wrote to memory of 956	2504	cmd.exe	43
PID 2504 wrote to memory of 948	2504	cmd.exe	44
PID 2504 wrote to memory of 948	2504	cmd.exe	44
PID 2504 wrote to memory of 948	2504	cmd.exe	44
PID 2504 wrote to memory of 948	2504	cmd.exe	44

C:\Users\Admin\AppData\Local\Temp\Invoice-BL. Payment TT $ 28,945.99.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice-BL. Payment TT $ 28,945.99.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2656
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\SFHAWxtoIpgL.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2820
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SFHAWxtoIpgL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC5FD.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2712
- C:\Users\Admin\AppData\Local\Temp\Invoice-BL. Payment TT $ 28,945.99.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice-BL. Payment TT $ 28,945.99.exe"
  2⤵
  - Drops desktop.ini file(s)
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1516
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Wi-Fi Discovery
    - Suspicious use of WriteProcessMemory
    PID:1300
  - - C:\Windows\SysWOW64\chcp.com
      chcp 65001
      4⤵
      System Location Discovery: System Language Discovery
      PID:664
  - - C:\Windows\SysWOW64\netsh.exe
      netsh wlan show profile
      4⤵
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Wi-Fi Discovery
      PID:2220
  - - C:\Windows\SysWOW64\findstr.exe
      findstr All
      4⤵
      System Location Discovery: System Language Discovery
      PID:2156
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2504
  - - C:\Windows\SysWOW64\chcp.com
      chcp 65001
      4⤵
      System Location Discovery: System Language Discovery
      PID:956
  - - C:\Windows\SysWOW64\netsh.exe
      netsh wlan show networks mode=bssid
      4⤵
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:948

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Wi-Fi Discovery

T1016.002

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC5FD.tmp

Filesize
1KB

MD5
fe285106be1957def75be7549a786086

SHA1
d59907930fb96e59d3cedb757f03b821069eb0cb

SHA256
9a5e532b9ed408ed726c9ceb7054455c1cf181691ca9124b72b5e4807c5a2f45

SHA512
b508f775c29767d005cb001a6b1d3e080139be880d17b29445ae9967dd255ebf1fc4058ab903c5e69484c39dfee1e1936f78a7656133d733f0f449251314e475

Download Submit
C:\Users\Admin\AppData\Local\fab5c14b9ba3507d34b861e522b7adaf\msgid.dat

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/1516-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1516-26-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1516-16-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1516-18-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1516-20-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1516-23-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1516-14-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1516-24-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2656-6-0x00000000004A0000-0x0000000000516000-memory.dmp

Filesize
472KB

Download
memory/2656-2-0x00000000746E0000-0x0000000074DCE000-memory.dmp

Filesize
6.9MB

Download
memory/2656-0-0x00000000746EE000-0x00000000746EF000-memory.dmp

Filesize
4KB

Download
memory/2656-3-0x00000000003B0000-0x00000000003D6000-memory.dmp

Filesize
152KB

Download
memory/2656-5-0x00000000746E0000-0x0000000074DCE000-memory.dmp

Filesize
6.9MB

Download
memory/2656-4-0x00000000746EE000-0x00000000746EF000-memory.dmp

Filesize
4KB

Download
memory/2656-27-0x00000000746E0000-0x0000000074DCE000-memory.dmp

Filesize
6.9MB

Download
memory/2656-1-0x0000000001110000-0x00000000011DA000-memory.dmp

Filesize
808KB

Download