asyncrat | 06da872afe3d9c80535c2fccdbe7054d299de1285cdf3666fa1a69a1a288c287

General

Target

NL Brute ACTIVATEOR.exe
Size

226KB
MD5

dbd8368aacabeb2f3007f2e41651e43e
SHA1

fc83221eca35d6fe5e71d12caa63d6b19fc702b5
SHA256

06da872afe3d9c80535c2fccdbe7054d299de1285cdf3666fa1a69a1a288c287
SHA512

4580870152c081843e0d6de2d6ad6a7b4b6fda017b09722720bb87c3ca790765cf355a6abf20810217085d8dc00a6fc2fe517d069214f64387ad59880a632f32
SSDEEP

3072:Z+STW8djpN6izj8mZw/Zf7/dFoUbBjXpW+WQwARPzjjyCYNMUL6+Wp0:m8XN6W8mm/VgUbfNBdnGd

Score

10^/10

asyncrat stormkitty default discovery persistence privilege_escalation rat spyware stealer

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

https://api.telegram.org/bot5787513945:AAHk4B_J3fjaWnYKNH9snbwB6zLOSTidL0E/sendMessage?chat_id=5611920321

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

1
gVGEXBoNH8Ip5YFU1iHQUEzHZivhmo9P

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/2116-1-0x0000000000560000-0x000000000059E000-memory.dmp	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) 9 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Local\29e692a91c1575a9b8b62ae3f9d03bea\Admin@DFZPKZRM_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	NL Brute ACTIVATEOR.exe
File opened for modification	C:\Users\Admin\AppData\Local\29e692a91c1575a9b8b62ae3f9d03bea\Admin@DFZPKZRM_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	NL Brute ACTIVATEOR.exe
File created	C:\Users\Admin\AppData\Local\29e692a91c1575a9b8b62ae3f9d03bea\Admin@DFZPKZRM_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	NL Brute ACTIVATEOR.exe
File opened for modification	C:\Users\Admin\AppData\Local\29e692a91c1575a9b8b62ae3f9d03bea\Admin@DFZPKZRM_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	NL Brute ACTIVATEOR.exe
File created	C:\Users\Admin\AppData\Local\29e692a91c1575a9b8b62ae3f9d03bea\Admin@DFZPKZRM_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	NL Brute ACTIVATEOR.exe
File created	C:\Users\Admin\AppData\Local\29e692a91c1575a9b8b62ae3f9d03bea\Admin@DFZPKZRM_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	NL Brute ACTIVATEOR.exe
File created	C:\Users\Admin\AppData\Local\29e692a91c1575a9b8b62ae3f9d03bea\Admin@DFZPKZRM_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	NL Brute ACTIVATEOR.exe
File created	C:\Users\Admin\AppData\Local\29e692a91c1575a9b8b62ae3f9d03bea\Admin@DFZPKZRM_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	NL Brute ACTIVATEOR.exe
File created	C:\Users\Admin\AppData\Local\29e692a91c1575a9b8b62ae3f9d03bea\Admin@DFZPKZRM_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	NL Brute ACTIVATEOR.exe

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	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	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NL Brute ACTIVATEOR.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com

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
4536	cmd.exe
1472	netsh.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

pid	Process
2116	NL Brute ACTIVATEOR.exe
2116	NL Brute ACTIVATEOR.exe
2116	NL Brute ACTIVATEOR.exe
2116	NL Brute ACTIVATEOR.exe
2116	NL Brute ACTIVATEOR.exe
2116	NL Brute ACTIVATEOR.exe
2116	NL Brute ACTIVATEOR.exe
2116	NL Brute ACTIVATEOR.exe
2116	NL Brute ACTIVATEOR.exe
2116	NL Brute ACTIVATEOR.exe
2116	NL Brute ACTIVATEOR.exe
2116	NL Brute ACTIVATEOR.exe
2116	NL Brute ACTIVATEOR.exe
2116	NL Brute ACTIVATEOR.exe
2116	NL Brute ACTIVATEOR.exe
2116	NL Brute ACTIVATEOR.exe
2116	NL Brute ACTIVATEOR.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2116	NL Brute ACTIVATEOR.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2116 wrote to memory of 4536	2116	NL Brute ACTIVATEOR.exe	74
PID 2116 wrote to memory of 4536	2116	NL Brute ACTIVATEOR.exe	74
PID 2116 wrote to memory of 4536	2116	NL Brute ACTIVATEOR.exe	74
PID 4536 wrote to memory of 804	4536	cmd.exe	76
PID 4536 wrote to memory of 804	4536	cmd.exe	76
PID 4536 wrote to memory of 804	4536	cmd.exe	76
PID 4536 wrote to memory of 1472	4536	cmd.exe	77
PID 4536 wrote to memory of 1472	4536	cmd.exe	77
PID 4536 wrote to memory of 1472	4536	cmd.exe	77
PID 4536 wrote to memory of 4652	4536	cmd.exe	78
PID 4536 wrote to memory of 4652	4536	cmd.exe	78
PID 4536 wrote to memory of 4652	4536	cmd.exe	78
PID 2116 wrote to memory of 4684	2116	NL Brute ACTIVATEOR.exe	79
PID 2116 wrote to memory of 4684	2116	NL Brute ACTIVATEOR.exe	79
PID 2116 wrote to memory of 4684	2116	NL Brute ACTIVATEOR.exe	79
PID 4684 wrote to memory of 600	4684	cmd.exe	81
PID 4684 wrote to memory of 600	4684	cmd.exe	81
PID 4684 wrote to memory of 600	4684	cmd.exe	81
PID 4684 wrote to memory of 4644	4684	cmd.exe	82
PID 4684 wrote to memory of 4644	4684	cmd.exe	82
PID 4684 wrote to memory of 4644	4684	cmd.exe	82

C:\Users\Admin\AppData\Local\Temp\NL Brute ACTIVATEOR.exe
"C:\Users\Admin\AppData\Local\Temp\NL Brute ACTIVATEOR.exe"
1⤵
- Drops desktop.ini file(s)
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2116
- 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:4536
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:804
- - 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:1472
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4652
- 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:4684
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:600
- - 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:4644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Browser Information Discovery

1

T1217

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Wi-Fi Discovery

1

T1016.002

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\29e692a91c1575a9b8b62ae3f9d03bea\Admin@DFZPKZRM_en-US\System\Process.txt

Filesize
4KB

MD5
16f62089a547fb334e999de782e9f2e1

SHA1
e9cc1d1d69522fa2f0e4a73f9538b4fb638b1f3f

SHA256
9b46f318406c1f758a1d9f9fc3ec104b12133ff8e079cbaa39ca393aa13e9364

SHA512
0cef05207f3b69288173a6d3cf698e38449e526099b38a6a22408f5c1d8f715417be81fc39367d8e79fcf1a64dcfd6d14a9d8dc08f9629054d9774efaf34c595

Download Submit
memory/2116-0-0x0000000073A0E000-0x0000000073A0F000-memory.dmp

Filesize
4KB

Download
memory/2116-1-0x0000000000560000-0x000000000059E000-memory.dmp

Filesize
248KB

Download
memory/2116-2-0x0000000073A00000-0x00000000740EE000-memory.dmp

Filesize
6.9MB

Download
memory/2116-3-0x0000000004F00000-0x0000000004F66000-memory.dmp

Filesize
408KB

Download
memory/2116-119-0x0000000073A00000-0x00000000740EE000-memory.dmp

Filesize
6.9MB

Download
memory/2116-120-0x0000000005820000-0x00000000058B2000-memory.dmp

Filesize
584KB

Download
memory/2116-121-0x0000000005DC0000-0x00000000062BE000-memory.dmp

Filesize
5.0MB

Download
memory/2116-123-0x0000000073A0E000-0x0000000073A0F000-memory.dmp

Filesize
4KB

Download
memory/2116-126-0x0000000005A50000-0x0000000005A5A000-memory.dmp

Filesize
40KB

Download
memory/2116-127-0x0000000073A00000-0x00000000740EE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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