asyncrat | e828e2b51c2c5412e66a660792ef393ce52c8e31d41d9c1adcac81367728fea6

Analysis

max time kernel
148s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-10-2024 19:50

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General

Target

IChanger.exe
Size

2.6MB
MD5

de70283085ca45f6b19bc3beb373e970
SHA1

30bcdfc110d03006ba0efd89def64628d2715ead
SHA256

e828e2b51c2c5412e66a660792ef393ce52c8e31d41d9c1adcac81367728fea6
SHA512

0e32b346714cf244e24ce0e6515e558c7a29157304e24f14d44ff3488486c19f9f0403fddb48dc6e95a3489eca503697d16c7e0e8e76d0e84264522af3e6d2c1
SSDEEP

49152:vG4DuZSgBVz68epmUAJWrrQiODZXHBdG:e7paboUS1dX3G

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/bot7510720859:AAHJ07lkxNWZwwJs6SC36WS0jVG9IR6m3pM/sendMessage?chat_id=6059920057

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 2 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023c97-7.dat	family_stormkitty
behavioral2/memory/4736-44-0x0000000000D20000-0x0000000000D52000-memory.dmp	family_stormkitty

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 2836 created 3452	2836	IChanger.exe	56

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x0008000000023c97-7.dat	family_asyncrat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	IChanger.exe

Executes dropped EXE 1 IoCs

pid	Process
4736	Setup.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) 8 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\77757401f880293d5eaccc71372ea46e\Admin@GYHASOLS_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	Setup.exe
File created	C:\Users\Admin\AppData\Local\77757401f880293d5eaccc71372ea46e\Admin@GYHASOLS_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	Setup.exe
File opened for modification	C:\Users\Admin\AppData\Local\77757401f880293d5eaccc71372ea46e\Admin@GYHASOLS_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	Setup.exe
File created	C:\Users\Admin\AppData\Local\77757401f880293d5eaccc71372ea46e\Admin@GYHASOLS_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	Setup.exe
File created	C:\Users\Admin\AppData\Local\77757401f880293d5eaccc71372ea46e\Admin@GYHASOLS_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	Setup.exe
File created	C:\Users\Admin\AppData\Local\77757401f880293d5eaccc71372ea46e\Admin@GYHASOLS_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	Setup.exe
File opened for modification	C:\Users\Admin\AppData\Local\77757401f880293d5eaccc71372ea46e\Admin@GYHASOLS_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	Setup.exe
File created	C:\Users\Admin\AppData\Local\77757401f880293d5eaccc71372ea46e\Admin@GYHASOLS_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	Setup.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
37	pastebin.com
38	pastebin.com

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
27	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 2836 set thread context of 3204	2836	IChanger.exe	87

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 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

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	netsh.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Setup.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	findstr.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
924	cmd.exe
180	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	Setup.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Setup.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
4736	Setup.exe
4736	Setup.exe
4736	Setup.exe
4736	Setup.exe
4736	Setup.exe
4736	Setup.exe
4736	Setup.exe
4736	Setup.exe
4736	Setup.exe
4736	Setup.exe
4736	Setup.exe
4736	Setup.exe
4736	Setup.exe
4736	Setup.exe
4736	Setup.exe
4736	Setup.exe
4736	Setup.exe
4736	Setup.exe
4736	Setup.exe
4736	Setup.exe
4736	Setup.exe
4736	Setup.exe
4736	Setup.exe
4736	Setup.exe
4736	Setup.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4736	Setup.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2836 wrote to memory of 4736	2836	IChanger.exe	85
PID 2836 wrote to memory of 4736	2836	IChanger.exe	85
PID 2836 wrote to memory of 4736	2836	IChanger.exe	85
PID 2836 wrote to memory of 3204	2836	IChanger.exe	87
PID 2836 wrote to memory of 3204	2836	IChanger.exe	87
PID 2836 wrote to memory of 3204	2836	IChanger.exe	87
PID 2836 wrote to memory of 3204	2836	IChanger.exe	87
PID 2836 wrote to memory of 3204	2836	IChanger.exe	87
PID 2836 wrote to memory of 3204	2836	IChanger.exe	87
PID 2836 wrote to memory of 3204	2836	IChanger.exe	87
PID 2836 wrote to memory of 3204	2836	IChanger.exe	87
PID 2836 wrote to memory of 3204	2836	IChanger.exe	87
PID 2836 wrote to memory of 3204	2836	IChanger.exe	87
PID 4736 wrote to memory of 924	4736	Setup.exe	96
PID 4736 wrote to memory of 924	4736	Setup.exe	96
PID 4736 wrote to memory of 924	4736	Setup.exe	96
PID 924 wrote to memory of 2836	924	cmd.exe	98
PID 924 wrote to memory of 2836	924	cmd.exe	98
PID 924 wrote to memory of 2836	924	cmd.exe	98
PID 924 wrote to memory of 180	924	cmd.exe	99
PID 924 wrote to memory of 180	924	cmd.exe	99
PID 924 wrote to memory of 180	924	cmd.exe	99
PID 924 wrote to memory of 1076	924	cmd.exe	100
PID 924 wrote to memory of 1076	924	cmd.exe	100
PID 924 wrote to memory of 1076	924	cmd.exe	100
PID 4736 wrote to memory of 4876	4736	Setup.exe	101
PID 4736 wrote to memory of 4876	4736	Setup.exe	101
PID 4736 wrote to memory of 4876	4736	Setup.exe	101
PID 4876 wrote to memory of 4968	4876	cmd.exe	103
PID 4876 wrote to memory of 4968	4876	cmd.exe	103
PID 4876 wrote to memory of 4968	4876	cmd.exe	103
PID 4876 wrote to memory of 2132	4876	cmd.exe	104
PID 4876 wrote to memory of 2132	4876	cmd.exe	104
PID 4876 wrote to memory of 2132	4876	cmd.exe	104

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3452
- C:\Users\Admin\AppData\Local\Temp\IChanger.exe
  "C:\Users\Admin\AppData\Local\Temp\IChanger.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2836
- - C:\Users\Admin\AppData\Local\Temp\Setup.exe
    "C:\Users\Admin\AppData\Local\Temp\Setup.exe"
    3⤵
    - Executes dropped EXE
    - 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:4736
  - - C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Wi-Fi Discovery
      Suspicious use of WriteProcessMemory
      PID:924
    - - C:\Windows\SysWOW64\chcp.com
        
        chcp 65001
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2836
    - - C:\Windows\SysWOW64\netsh.exe
        
        netsh wlan show profile
        5⤵
        Event Triggered Execution: Netsh Helper DLL
        System Location Discovery: System Language Discovery
        System Network Configuration Discovery: Wi-Fi Discovery
        
        PID:180
    - - C:\Windows\SysWOW64\findstr.exe
        
        findstr All
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:1076
  - - C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:4876
    - - C:\Windows\SysWOW64\chcp.com
        
        chcp 65001
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:4968
    - - C:\Windows\SysWOW64\netsh.exe
        
        netsh wlan show networks mode=bssid
        5⤵
        Event Triggered Execution: Netsh Helper DLL
        System Location Discovery: System Language Discovery
        
        PID:2132
- C:\Users\Admin\AppData\Local\Temp\IChanger.exe
  "C:\Users\Admin\AppData\Local\Temp\IChanger.exe"
  2⤵
  PID:3204

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

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\77757401f880293d5eaccc71372ea46e\Admin@GYHASOLS_en-US\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
C:\Users\Admin\AppData\Local\77757401f880293d5eaccc71372ea46e\Admin@GYHASOLS_en-US\System\Process.txt

Filesize
4KB

MD5
adce58b85ffc04f8ab0a96954c0cb91c

SHA1
8c5bcb29f92a27620572e2c0746b91aa96f2f50a

SHA256
7a3f85e9b34f9c1bb72175f6a4c61d7dc55312d48dd9caaf49be867a0f270410

SHA512
0e67c016e4e4f6fe6d275b999cfd3404296dbb7aced710c7446946949d19b74782b751d3e6731cc05240dc09bafe0299d59e55639e2350da000196568cf950e1

Download Submit
C:\Users\Admin\AppData\Local\Temp\Setup.exe

Filesize
175KB

MD5
bace9f15b0e425259da0470e7ffe5520

SHA1
15462fe47362ead5c1e1e43665dc439e6c218c7f

SHA256
f4000e61d9c5929e2eab12382d5624fac3f96d3c27c2e42c5f374cc457ee8b4f

SHA512
2e0d2c87de91ecd3b95c7c99b4951cfc4a244de04e0b14f364a447c57c51e4c3e15fa3726a26b96bf408cf4e8bd3ba5980f0f8acb2fa757c93ae73f711d8a832

Download Submit
C:\Users\Admin\AppData\Local\f84b08a7374ddd2f57075ebb9c0b405b\msgid.dat

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2836-1-0x00000000003A0000-0x0000000000632000-memory.dmp

Filesize
2.6MB

Download
memory/2836-2-0x000000001C6B0000-0x000000001C860000-memory.dmp

Filesize
1.7MB

Download
memory/2836-29-0x00007FFA7BF20000-0x00007FFA7C9E1000-memory.dmp

Filesize
10.8MB

Download
memory/2836-43-0x00007FFA7BF20000-0x00007FFA7C9E1000-memory.dmp

Filesize
10.8MB

Download
memory/2836-0-0x00007FFA7BF23000-0x00007FFA7BF25000-memory.dmp

Filesize
8KB

Download
memory/3204-41-0x0000000140000000-0x0000000140425000-memory.dmp

Filesize
4.1MB

Download
memory/3204-40-0x0000000140000000-0x0000000140425000-memory.dmp

Filesize
4.1MB

Download
memory/4736-44-0x0000000000D20000-0x0000000000D52000-memory.dmp

Filesize
200KB

Download
memory/4736-194-0x0000000006790000-0x0000000006D34000-memory.dmp

Filesize
5.6MB

Download
memory/4736-198-0x0000000006260000-0x000000000626A000-memory.dmp

Filesize
40KB

Download
memory/4736-193-0x0000000006140000-0x00000000061D2000-memory.dmp

Filesize
584KB

Download
memory/4736-204-0x0000000006270000-0x0000000006282000-memory.dmp

Filesize
72KB

Download
memory/4736-45-0x0000000005720000-0x0000000005786000-memory.dmp

Filesize
408KB

Download