asyncrat | dbacc134902ee72d1464d3b61a3518402b7ab54807bb7b7541fc2916c8119e9e

Analysis

max time kernel
146s
max time network
125s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
07-07-2024 05:55

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General

Target

68fad5f5f8de1c290df5d3754b4af358.exe
Size

175KB
MD5

68fad5f5f8de1c290df5d3754b4af358
SHA1

0028395243f38a03b13726915144b9848e8da39a
SHA256

dbacc134902ee72d1464d3b61a3518402b7ab54807bb7b7541fc2916c8119e9e
SHA512

ce44611d5c47fdcb979c715352f5050c816d4e5a814b102836856ede279f774e4709ca48fb95639ca66476ca547176370da7afc5185af066832732da2c80ee01
SSDEEP

3072:ge8p6ewdOIwQx76vK/bvTv0cU+lL/dMlZZUZ0b2gTWwARE+WpCc:06ewwIwQJ6vKX0c5MlYZ0b27

Score

10^/10

asyncrat stormkitty default 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/bot6082381502:AAEEe5dVvSMdEf-_fKUh7iRqcNun3Q5DzxM/sendMessage?chat_id=5795480469

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

StormKitty payload 1 IoCs

resource	yara_rule
behavioral1/memory/2820-1-0x0000000000DE0000-0x0000000000E12000-memory.dmp	family_stormkitty

Reads user/profile data of web browsers 2 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

Drops desktop.ini file(s) 7 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\8a7f4780b211abd96fed82f6658ca63b\Admin@ELZYPTFV_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	68fad5f5f8de1c290df5d3754b4af358.exe
File opened for modification	C:\Users\Admin\AppData\Local\8a7f4780b211abd96fed82f6658ca63b\Admin@ELZYPTFV_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	68fad5f5f8de1c290df5d3754b4af358.exe
File created	C:\Users\Admin\AppData\Local\8a7f4780b211abd96fed82f6658ca63b\Admin@ELZYPTFV_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	68fad5f5f8de1c290df5d3754b4af358.exe
File created	C:\Users\Admin\AppData\Local\8a7f4780b211abd96fed82f6658ca63b\Admin@ELZYPTFV_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	68fad5f5f8de1c290df5d3754b4af358.exe
File opened for modification	C:\Users\Admin\AppData\Local\8a7f4780b211abd96fed82f6658ca63b\Admin@ELZYPTFV_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	68fad5f5f8de1c290df5d3754b4af358.exe
File created	C:\Users\Admin\AppData\Local\8a7f4780b211abd96fed82f6658ca63b\Admin@ELZYPTFV_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	68fad5f5f8de1c290df5d3754b4af358.exe
File opened for modification	C:\Users\Admin\AppData\Local\8a7f4780b211abd96fed82f6658ca63b\Admin@ELZYPTFV_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	68fad5f5f8de1c290df5d3754b4af358.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
2	icanhazip.com

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

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 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
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	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	68fad5f5f8de1c290df5d3754b4af358.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	68fad5f5f8de1c290df5d3754b4af358.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2820	68fad5f5f8de1c290df5d3754b4af358.exe
2820	68fad5f5f8de1c290df5d3754b4af358.exe
2820	68fad5f5f8de1c290df5d3754b4af358.exe
2820	68fad5f5f8de1c290df5d3754b4af358.exe
2820	68fad5f5f8de1c290df5d3754b4af358.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2820	68fad5f5f8de1c290df5d3754b4af358.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2820 wrote to memory of 1112	2820	68fad5f5f8de1c290df5d3754b4af358.exe	31
PID 2820 wrote to memory of 1112	2820	68fad5f5f8de1c290df5d3754b4af358.exe	31
PID 2820 wrote to memory of 1112	2820	68fad5f5f8de1c290df5d3754b4af358.exe	31
PID 2820 wrote to memory of 1112	2820	68fad5f5f8de1c290df5d3754b4af358.exe	31
PID 1112 wrote to memory of 1120	1112	cmd.exe	33
PID 1112 wrote to memory of 1120	1112	cmd.exe	33
PID 1112 wrote to memory of 1120	1112	cmd.exe	33
PID 1112 wrote to memory of 1120	1112	cmd.exe	33
PID 1112 wrote to memory of 1728	1112	cmd.exe	34
PID 1112 wrote to memory of 1728	1112	cmd.exe	34
PID 1112 wrote to memory of 1728	1112	cmd.exe	34
PID 1112 wrote to memory of 1728	1112	cmd.exe	34
PID 1112 wrote to memory of 2656	1112	cmd.exe	35
PID 1112 wrote to memory of 2656	1112	cmd.exe	35
PID 1112 wrote to memory of 2656	1112	cmd.exe	35
PID 1112 wrote to memory of 2656	1112	cmd.exe	35
PID 2820 wrote to memory of 3064	2820	68fad5f5f8de1c290df5d3754b4af358.exe	36
PID 2820 wrote to memory of 3064	2820	68fad5f5f8de1c290df5d3754b4af358.exe	36
PID 2820 wrote to memory of 3064	2820	68fad5f5f8de1c290df5d3754b4af358.exe	36
PID 2820 wrote to memory of 3064	2820	68fad5f5f8de1c290df5d3754b4af358.exe	36
PID 3064 wrote to memory of 1228	3064	cmd.exe	38
PID 3064 wrote to memory of 1228	3064	cmd.exe	38
PID 3064 wrote to memory of 1228	3064	cmd.exe	38
PID 3064 wrote to memory of 1228	3064	cmd.exe	38
PID 3064 wrote to memory of 2056	3064	cmd.exe	39
PID 3064 wrote to memory of 2056	3064	cmd.exe	39
PID 3064 wrote to memory of 2056	3064	cmd.exe	39
PID 3064 wrote to memory of 2056	3064	cmd.exe	39

C:\Users\Admin\AppData\Local\Temp\68fad5f5f8de1c290df5d3754b4af358.exe
"C:\Users\Admin\AppData\Local\Temp\68fad5f5f8de1c290df5d3754b4af358.exe"
1⤵
- Drops desktop.ini file(s)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2820
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1112
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:1120
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show profile
    3⤵
    - Event Triggered Execution: Netsh Helper DLL
    PID:1728
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    PID:2656
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3064
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:1228
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show networks mode=bssid
    3⤵
    - Event Triggered Execution: Netsh Helper DLL
    PID:2056

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

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

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\e24a12fd746f751921fff4acae4988c1\msgid.dat

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2820-0-0x000000007454E000-0x000000007454F000-memory.dmp

Filesize
4KB

Download
memory/2820-1-0x0000000000DE0000-0x0000000000E12000-memory.dmp

Filesize
200KB

Download
memory/2820-2-0x0000000074540000-0x0000000074C2E000-memory.dmp

Filesize
6.9MB

Download
memory/2820-72-0x0000000074540000-0x0000000074C2E000-memory.dmp

Filesize
6.9MB

Download
memory/2820-81-0x000000007454E000-0x000000007454F000-memory.dmp

Filesize
4KB

Download
memory/2820-82-0x0000000074540000-0x0000000074C2E000-memory.dmp

Filesize
6.9MB

Download
memory/2820-83-0x0000000074540000-0x0000000074C2E000-memory.dmp

Filesize
6.9MB

Download