asyncrat | 6cdb8d1af85d10ed3022ae0a183e3e9dff0ad1bc4a90915e7e41b600154a349e

Analysis

max time kernel
149s
max time network
132s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
26/04/2023, 00:03

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General

Target
panel.exe
Size 170KB
Sample230426-ab2e6adh25
SHA256 6cdb8d1af85d10ed3022ae0a183e3e9dff0ad1bc4a90915e7e41b600154a349e
MD5 470a8267b5eba7eb998d9fa69532f849
SHA1 1152ddb2ab93aae9983e3e8b5c4f367875323e3e
SHA512 5f151230dc97e0804cbe7b36ce9a4570023bdaf0283ae2681732a835c26e540ec93f9c56cd78599c8deeeaed10b2b50f9c976c85ad95d4e36460e05083f7048d
SSDEEP 3072:O+STW8djpN6izj8mZwHQiWZqswqIPu/i9b+J2cOZTMi56+WpL:z8XN6W8mmdUwXPSi9b2c3
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

asyncrat stormkitty default 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/bot6093966625:AAHk4dddHb8B1faCcFqL3um1gmB-f2mWhyc/sendMessage?chat_id=5529838804

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 3 IoCs

resource	yara_rule
behavioral1/memory/1196-54-0x0000000001090000-0x00000000010C0000-memory.dmp	family_stormkitty
behavioral1/memory/1196-55-0x0000000001020000-0x0000000001060000-memory.dmp	family_stormkitty
behavioral1/memory/1196-127-0x0000000001020000-0x0000000001060000-memory.dmp	family_stormkitty

Async RAT payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/1196-54-0x0000000001090000-0x00000000010C0000-memory.dmp	asyncrat
behavioral1/memory/1196-55-0x0000000001020000-0x0000000001060000-memory.dmp	asyncrat

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
T1081

Drops desktop.ini file(s) 7 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\140dc5ec3cb7ef8c8c9c890b57ce9fb0\Admin@THEQWNRW_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	panel.exe
File opened for modification	C:\Users\Admin\AppData\Local\140dc5ec3cb7ef8c8c9c890b57ce9fb0\Admin@THEQWNRW_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	panel.exe
File created	C:\Users\Admin\AppData\Local\140dc5ec3cb7ef8c8c9c890b57ce9fb0\Admin@THEQWNRW_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	panel.exe
File opened for modification	C:\Users\Admin\AppData\Local\140dc5ec3cb7ef8c8c9c890b57ce9fb0\Admin@THEQWNRW_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	panel.exe
File created	C:\Users\Admin\AppData\Local\140dc5ec3cb7ef8c8c9c890b57ce9fb0\Admin@THEQWNRW_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	panel.exe
File created	C:\Users\Admin\AppData\Local\140dc5ec3cb7ef8c8c9c890b57ce9fb0\Admin@THEQWNRW_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	panel.exe
File opened for modification	C:\Users\Admin\AppData\Local\140dc5ec3cb7ef8c8c9c890b57ce9fb0\Admin@THEQWNRW_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	panel.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
3	icanhazip.com

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

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	panel.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	panel.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1196	panel.exe
1196	panel.exe
1196	panel.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1196	panel.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1196 wrote to memory of 1448	1196	panel.exe	29
PID 1196 wrote to memory of 1448	1196	panel.exe	29
PID 1196 wrote to memory of 1448	1196	panel.exe	29
PID 1196 wrote to memory of 1448	1196	panel.exe	29
PID 1448 wrote to memory of 872	1448	cmd.exe	31
PID 1448 wrote to memory of 872	1448	cmd.exe	31
PID 1448 wrote to memory of 872	1448	cmd.exe	31
PID 1448 wrote to memory of 872	1448	cmd.exe	31
PID 1448 wrote to memory of 1656	1448	cmd.exe	32
PID 1448 wrote to memory of 1656	1448	cmd.exe	32
PID 1448 wrote to memory of 1656	1448	cmd.exe	32
PID 1448 wrote to memory of 1656	1448	cmd.exe	32
PID 1448 wrote to memory of 2000	1448	cmd.exe	33
PID 1448 wrote to memory of 2000	1448	cmd.exe	33
PID 1448 wrote to memory of 2000	1448	cmd.exe	33
PID 1448 wrote to memory of 2000	1448	cmd.exe	33
PID 1196 wrote to memory of 1580	1196	panel.exe	34
PID 1196 wrote to memory of 1580	1196	panel.exe	34
PID 1196 wrote to memory of 1580	1196	panel.exe	34
PID 1196 wrote to memory of 1580	1196	panel.exe	34
PID 1580 wrote to memory of 468	1580	cmd.exe	36
PID 1580 wrote to memory of 468	1580	cmd.exe	36
PID 1580 wrote to memory of 468	1580	cmd.exe	36
PID 1580 wrote to memory of 468	1580	cmd.exe	36
PID 1580 wrote to memory of 1808	1580	cmd.exe	37
PID 1580 wrote to memory of 1808	1580	cmd.exe	37
PID 1580 wrote to memory of 1808	1580	cmd.exe	37
PID 1580 wrote to memory of 1808	1580	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\panel.exe
"C:\Users\Admin\AppData\Local\Temp\panel.exe"
1⤵
- Drops desktop.ini file(s)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1448
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:872
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show profile
    3⤵
    PID:1656
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    PID:2000
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1580
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:468
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show networks mode=bssid
    3⤵
    PID:1808

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

Bookmarks.txt

Path C:\Users\Admin\AppData\Local\140dc5ec3cb7ef8c8c9c890b57ce9fb0\Admin@THEQWNRW_en-US\Browsers\Firefox\Bookmarks.txt
Size 105B
SHA256 c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142
MD5 2e9d094dda5cdc3ce6519f75943a4ff4
SHA1 5d989b4ac8b699781681fe75ed9ef98191a5096c
SHA512 d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7
MD5 SHA1 SHA512

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msgid.dat

Path C:\Users\Admin\AppData\Local\c31e7f5f39eac2975cd704cf25373f8a\msgid.dat
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

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memory/1196-54-0x0000000001090000-0x00000000010C0000-memory.dmp

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memory/1196-55-0x0000000001020000-0x0000000001060000-memory.dmp

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memory/1196-124-0x0000000001020000-0x0000000001060000-memory.dmp

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memory/1196-127-0x0000000001020000-0x0000000001060000-memory.dmp

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memory/1196-133-0x0000000001020000-0x0000000001060000-memory.dmp

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