asyncrat | dbacc134902ee72d1464d3b61a3518402b7ab54807bb7b7541fc2916c8119e9e

Analysis

max time kernel
148s
max time network
51s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
07/07/2024, 05:55

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General

Target
68fad5f5f8de1c290df5d3754b4af358.exe
Size 175KB
Sample240707-gmffdsxfpf
SHA256 dbacc134902ee72d1464d3b61a3518402b7ab54807bb7b7541fc2916c8119e9e
MD5 68fad5f5f8de1c290df5d3754b4af358
SHA1 0028395243f38a03b13726915144b9848e8da39a
SHA512 ce44611d5c47fdcb979c715352f5050c816d4e5a814b102836856ede279f774e4709ca48fb95639ca66476ca547176370da7afc5185af066832732da2c80ee01
SSDEEP 3072:ge8p6ewdOIwQx76vK/bvTv0cU+lL/dMlZZUZ0b2gTWwARE+WpCc:06ewwIwQJ6vKX0c5MlYZ0b27
MD5 SHA1 SHA512 SSDEEP

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
behavioral2/memory/3300-1-0x00000000003F0000-0x0000000000422000-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) 8 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\7fb8a3a76f527de06f27c54d5a87c613\Admin@GSAGMHCQ_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	68fad5f5f8de1c290df5d3754b4af358.exe
File opened for modification	C:\Users\Admin\AppData\Local\7fb8a3a76f527de06f27c54d5a87c613\Admin@GSAGMHCQ_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	68fad5f5f8de1c290df5d3754b4af358.exe
File created	C:\Users\Admin\AppData\Local\7fb8a3a76f527de06f27c54d5a87c613\Admin@GSAGMHCQ_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	68fad5f5f8de1c290df5d3754b4af358.exe
File created	C:\Users\Admin\AppData\Local\7fb8a3a76f527de06f27c54d5a87c613\Admin@GSAGMHCQ_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	68fad5f5f8de1c290df5d3754b4af358.exe
File created	C:\Users\Admin\AppData\Local\7fb8a3a76f527de06f27c54d5a87c613\Admin@GSAGMHCQ_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	68fad5f5f8de1c290df5d3754b4af358.exe
File created	C:\Users\Admin\AppData\Local\7fb8a3a76f527de06f27c54d5a87c613\Admin@GSAGMHCQ_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	68fad5f5f8de1c290df5d3754b4af358.exe
File created	C:\Users\Admin\AppData\Local\7fb8a3a76f527de06f27c54d5a87c613\Admin@GSAGMHCQ_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	68fad5f5f8de1c290df5d3754b4af358.exe
File opened for modification	C:\Users\Admin\AppData\Local\7fb8a3a76f527de06f27c54d5a87c613\Admin@GSAGMHCQ_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\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
6	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	68fad5f5f8de1c290df5d3754b4af358.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	68fad5f5f8de1c290df5d3754b4af358.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
3300	68fad5f5f8de1c290df5d3754b4af358.exe
3300	68fad5f5f8de1c290df5d3754b4af358.exe
3300	68fad5f5f8de1c290df5d3754b4af358.exe
3300	68fad5f5f8de1c290df5d3754b4af358.exe
3300	68fad5f5f8de1c290df5d3754b4af358.exe
3300	68fad5f5f8de1c290df5d3754b4af358.exe
3300	68fad5f5f8de1c290df5d3754b4af358.exe
3300	68fad5f5f8de1c290df5d3754b4af358.exe
3300	68fad5f5f8de1c290df5d3754b4af358.exe
3300	68fad5f5f8de1c290df5d3754b4af358.exe
3300	68fad5f5f8de1c290df5d3754b4af358.exe
3300	68fad5f5f8de1c290df5d3754b4af358.exe
3300	68fad5f5f8de1c290df5d3754b4af358.exe
3300	68fad5f5f8de1c290df5d3754b4af358.exe
3300	68fad5f5f8de1c290df5d3754b4af358.exe
3300	68fad5f5f8de1c290df5d3754b4af358.exe
3300	68fad5f5f8de1c290df5d3754b4af358.exe
3300	68fad5f5f8de1c290df5d3754b4af358.exe
3300	68fad5f5f8de1c290df5d3754b4af358.exe
3300	68fad5f5f8de1c290df5d3754b4af358.exe
3300	68fad5f5f8de1c290df5d3754b4af358.exe
3300	68fad5f5f8de1c290df5d3754b4af358.exe
3300	68fad5f5f8de1c290df5d3754b4af358.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3300	68fad5f5f8de1c290df5d3754b4af358.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3300 wrote to memory of 2332	3300	68fad5f5f8de1c290df5d3754b4af358.exe	81
PID 3300 wrote to memory of 2332	3300	68fad5f5f8de1c290df5d3754b4af358.exe	81
PID 3300 wrote to memory of 2332	3300	68fad5f5f8de1c290df5d3754b4af358.exe	81
PID 2332 wrote to memory of 2028	2332	cmd.exe	83
PID 2332 wrote to memory of 2028	2332	cmd.exe	83
PID 2332 wrote to memory of 2028	2332	cmd.exe	83
PID 2332 wrote to memory of 1692	2332	cmd.exe	84
PID 2332 wrote to memory of 1692	2332	cmd.exe	84
PID 2332 wrote to memory of 1692	2332	cmd.exe	84
PID 2332 wrote to memory of 5064	2332	cmd.exe	85
PID 2332 wrote to memory of 5064	2332	cmd.exe	85
PID 2332 wrote to memory of 5064	2332	cmd.exe	85
PID 3300 wrote to memory of 5108	3300	68fad5f5f8de1c290df5d3754b4af358.exe	87
PID 3300 wrote to memory of 5108	3300	68fad5f5f8de1c290df5d3754b4af358.exe	87
PID 3300 wrote to memory of 5108	3300	68fad5f5f8de1c290df5d3754b4af358.exe	87
PID 5108 wrote to memory of 2176	5108	cmd.exe	89
PID 5108 wrote to memory of 2176	5108	cmd.exe	89
PID 5108 wrote to memory of 2176	5108	cmd.exe	89
PID 5108 wrote to memory of 4016	5108	cmd.exe	90
PID 5108 wrote to memory of 4016	5108	cmd.exe	90
PID 5108 wrote to memory of 4016	5108	cmd.exe	90

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:3300
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2332
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:2028
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show profile
    3⤵
    - Event Triggered Execution: Netsh Helper DLL
    PID:1692
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    PID:5064
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5108
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:2176
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show networks mode=bssid
    3⤵
    - Event Triggered Execution: Netsh Helper DLL
    PID:4016

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

Bookmarks.txt

Path C:\Users\Admin\AppData\Local\7fb8a3a76f527de06f27c54d5a87c613\Admin@GSAGMHCQ_en-US\Browsers\Firefox\Bookmarks.txt
Size 105B
SHA256 c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142
MD5 2e9d094dda5cdc3ce6519f75943a4ff4
SHA1 5d989b4ac8b699781681fe75ed9ef98191a5096c
SHA512 d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7
MD5 SHA1 SHA512

Submit Download

Process.txt

Path C:\Users\Admin\AppData\Local\7fb8a3a76f527de06f27c54d5a87c613\Admin@GSAGMHCQ_en-US\System\Process.txt
Size 4KB
SHA256 248c9daa6a7961c1674d3f7225ea80207cbaf6e629d33a5031ec261668620dcd
MD5 610b4f9010a92ff9635ba670663f31be
SHA1 778d8503f5b34a6277369ddc839109d1a0b02a60
SHA512 82dcf970d9bcb1c56a0b2408afc54779e27330f54a557266dcabff72ce0bf953da4e62d7b6513a440583304b493ca707f1d2e880021e3a6f1a59deb814b54192
SSDEEP 48:hm4QpDHLhsMcGvXVh2hL5stEZFMjuutb1uja3C23KbcxbELW:tQpzLyM5PVhkLMEZqjuSB5C23KwxAy
MD5 SHA1 SHA512 SSDEEP

Submit Download

msgid.dat

Path C:\Users\Admin\AppData\Local\aadb7f42b8e162df8ca9f6eefe2406ca\msgid.dat
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

Submit Download

memory/3300-141-0x00000000753A0000-0x0000000075B50000-memory.dmp

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memory/3300-3-0x0000000004E00000-0x0000000004E66000-memory.dmp

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memory/3300-2-0x00000000753A0000-0x0000000075B50000-memory.dmp

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memory/3300-0-0x00000000753AE000-0x00000000753AF000-memory.dmp

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memory/3300-143-0x0000000005800000-0x0000000005892000-memory.dmp

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memory/3300-144-0x0000000005E50000-0x00000000063F4000-memory.dmp

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memory/3300-148-0x0000000005920000-0x000000000592A000-memory.dmp

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memory/3300-149-0x00000000753AE000-0x00000000753AF000-memory.dmp

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memory/3300-150-0x00000000753A0000-0x0000000075B50000-memory.dmp

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memory/3300-1-0x00000000003F0000-0x0000000000422000-memory.dmp

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memory/3300-156-0x00000000753A0000-0x0000000075B50000-memory.dmp

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