asyncrat | b8c5e2c8477706f3f54e152443718dcec270889002289aa1730eabc5ba3f312f

Analysis

max time kernel
144s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
22/03/2025, 06:09

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General

Target

26cf08ffef5a40b6849f2afec99ac8d4.exe
Size

175KB
MD5

26cf08ffef5a40b6849f2afec99ac8d4
SHA1

86c276b3569218b1f1cb9f490d4631017aa85c52
SHA256

ca0d16b1805984d77294ae4cbd3fc5c3c9d33cf60bc35d3c12e2b60245331521
SHA512

9b31ae192c6c0ed9b4fafc751212c94cd7f566e4d82191ab1dfb42a5d5ff57712972dca2449e3e6742e5aa306c33953b1c8f77c7d9b16f140fe78a6187028680
SSDEEP

3072:/e8oX8Sb5KcXrtkkXmf/bDsvqtU+lLToChAP0UZ0b2gT8fwAqE+Wpor:KXtb5KcXr7XmfgqtjhAxZ0b2p

Score

10^/10

asyncrat stormkitty default discovery 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/bot7552210369:AAGOe83VIQXWkppjzFCQkkZxhmaRRArf0EQ/sendMessage?chat_id=7623088285

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 1 IoCs

resource	yara_rule
behavioral8/memory/4160-1-0x0000000000AF0000-0x0000000000B22000-memory.dmp	family_stormkitty

Stormkitty family
stormkitty
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) 7 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\1f5f33f8fbc38a5a0d0d950a3790c57d\Admin@IQNFYLSS_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	26cf08ffef5a40b6849f2afec99ac8d4.exe
File created	C:\Users\Admin\AppData\Local\1f5f33f8fbc38a5a0d0d950a3790c57d\Admin@IQNFYLSS_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	26cf08ffef5a40b6849f2afec99ac8d4.exe
File created	C:\Users\Admin\AppData\Local\1f5f33f8fbc38a5a0d0d950a3790c57d\Admin@IQNFYLSS_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	26cf08ffef5a40b6849f2afec99ac8d4.exe
File created	C:\Users\Admin\AppData\Local\1f5f33f8fbc38a5a0d0d950a3790c57d\Admin@IQNFYLSS_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	26cf08ffef5a40b6849f2afec99ac8d4.exe
File created	C:\Users\Admin\AppData\Local\1f5f33f8fbc38a5a0d0d950a3790c57d\Admin@IQNFYLSS_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	26cf08ffef5a40b6849f2afec99ac8d4.exe
File created	C:\Users\Admin\AppData\Local\1f5f33f8fbc38a5a0d0d950a3790c57d\Admin@IQNFYLSS_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	26cf08ffef5a40b6849f2afec99ac8d4.exe
File opened for modification	C:\Users\Admin\AppData\Local\1f5f33f8fbc38a5a0d0d950a3790c57d\Admin@IQNFYLSS_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	26cf08ffef5a40b6849f2afec99ac8d4.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
29	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 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 8 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	26cf08ffef5a40b6849f2afec99ac8d4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	findstr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	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
1196	cmd.exe
3348	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	26cf08ffef5a40b6849f2afec99ac8d4.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	26cf08ffef5a40b6849f2afec99ac8d4.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe
4160	26cf08ffef5a40b6849f2afec99ac8d4.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4160	26cf08ffef5a40b6849f2afec99ac8d4.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4160 wrote to memory of 1196	4160	26cf08ffef5a40b6849f2afec99ac8d4.exe	88
PID 4160 wrote to memory of 1196	4160	26cf08ffef5a40b6849f2afec99ac8d4.exe	88
PID 4160 wrote to memory of 1196	4160	26cf08ffef5a40b6849f2afec99ac8d4.exe	88
PID 1196 wrote to memory of 1352	1196	cmd.exe	90
PID 1196 wrote to memory of 1352	1196	cmd.exe	90
PID 1196 wrote to memory of 1352	1196	cmd.exe	90
PID 1196 wrote to memory of 3348	1196	cmd.exe	91
PID 1196 wrote to memory of 3348	1196	cmd.exe	91
PID 1196 wrote to memory of 3348	1196	cmd.exe	91
PID 1196 wrote to memory of 4544	1196	cmd.exe	92
PID 1196 wrote to memory of 4544	1196	cmd.exe	92
PID 1196 wrote to memory of 4544	1196	cmd.exe	92
PID 4160 wrote to memory of 1528	4160	26cf08ffef5a40b6849f2afec99ac8d4.exe	93
PID 4160 wrote to memory of 1528	4160	26cf08ffef5a40b6849f2afec99ac8d4.exe	93
PID 4160 wrote to memory of 1528	4160	26cf08ffef5a40b6849f2afec99ac8d4.exe	93
PID 1528 wrote to memory of 5000	1528	cmd.exe	95
PID 1528 wrote to memory of 5000	1528	cmd.exe	95
PID 1528 wrote to memory of 5000	1528	cmd.exe	95
PID 1528 wrote to memory of 2084	1528	cmd.exe	96
PID 1528 wrote to memory of 2084	1528	cmd.exe	96
PID 1528 wrote to memory of 2084	1528	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\26cf08ffef5a40b6849f2afec99ac8d4.exe
"C:\Users\Admin\AppData\Local\Temp\26cf08ffef5a40b6849f2afec99ac8d4.exe"
1⤵
- 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:4160
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Wi-Fi Discovery
  - Suspicious use of WriteProcessMemory
  PID:1196
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1352
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show profile
    3⤵
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Wi-Fi Discovery
    PID:3348
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4544
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1528
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5000
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show networks mode=bssid
    3⤵
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2084

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

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\1f5f33f8fbc38a5a0d0d950a3790c57d\Admin@IQNFYLSS_en-US\System\Process.txt

Filesize
4KB

MD5
c064b4172e90b0ec842ed8844f5a35ae

SHA1
9dc1967d382288b967ccb96c0b2e7674d71f3b6c

SHA256
beadd03c85c45a727703f7d08826f3a3635b02b3eee500e0f98b860581eb9a32

SHA512
a5459ae21c57dac914c71bfba8581aa1bc3410eeea62be6d946a0c2314f1d623a17b0470d377d159f3e0bea374ebdb374990f5ba370f24db59eef92add725696

Download Submit
C:\Users\Admin\AppData\Local\8fe6d1970bc2381d85ee4915daf842da\msgid.dat

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/4160-147-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/4160-3-0x00000000054C0000-0x0000000005526000-memory.dmp

Filesize
408KB

Download
memory/4160-2-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/4160-144-0x000000007502E000-0x000000007502F000-memory.dmp

Filesize
4KB

Download
memory/4160-0-0x000000007502E000-0x000000007502F000-memory.dmp

Filesize
4KB

Download
memory/4160-148-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/4160-149-0x0000000006030000-0x00000000060C2000-memory.dmp

Filesize
584KB

Download
memory/4160-150-0x0000000006680000-0x0000000006C24000-memory.dmp

Filesize
5.6MB

Download
memory/4160-154-0x0000000006280000-0x000000000628A000-memory.dmp

Filesize
40KB

Download
memory/4160-1-0x0000000000AF0000-0x0000000000B22000-memory.dmp

Filesize
200KB

Download
memory/4160-160-0x0000000006F30000-0x0000000006F42000-memory.dmp

Filesize
72KB

Download
memory/4160-183-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download