asyncrat | 39028e30633ad28ac9f8d1a1f30adc3d0c351e96772f96ceb58690abff0d2736

General

Target

bb96db7406566ec0e9305acde9205763d4e9d7a65f257f3d5c47c15f393628ec.exe
Size

167KB
MD5

2494ddf095f3ad52f3ce518c45e37815
SHA1

fef7060001121af7720efc877adb57b3a0770e6c
SHA256

bb96db7406566ec0e9305acde9205763d4e9d7a65f257f3d5c47c15f393628ec
SHA512

6b1f703c94dcb3b5d33f303dd18c633863f846beb51ce06c574a0030ba7d8e90d71b76893fcf71947186e53567fa8ba9c54cccdce8453610b93df31dad992bf8
SSDEEP

3072:Kiuo2wrg+t38kRKQ9pgEvGW2e861u/s9b2JtD1wZp+Wp+WIrk:Cwg+t3DgEvTV91Ss9bY7KdIr

Score

10^/10

asyncrat stormkitty default discovery persistence privilege_escalation rat spyware stealer

Malware Config

Extracted

Family

asyncrat

Version

0.0.1

Botnet

Default

C2

bigdaddy-service.biz:6606

bigdaddy-service.biz:7707

bigdaddy-service.biz:8808

https://api.telegram.org/bot1887752763:AAEFHUQhXilkF7u0X0Uqs-Po7aZUCtVrohg/sendMessage?chat_id=1096425866

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

StormKitty payload 1 IoCs

resource	yara_rule
behavioral2/memory/3200-1-0x0000000000FD0000-0x0000000001000000-memory.dmp	family_stormkitty

Stormkitty 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) 6 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\fbd5ad42a5bcdf761431c4983e04fd19\Admin@UTKBEBLO_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	bb96db7406566ec0e9305acde9205763d4e9d7a65f257f3d5c47c15f393628ec.exe
File created	C:\Users\Admin\AppData\Local\fbd5ad42a5bcdf761431c4983e04fd19\Admin@UTKBEBLO_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	bb96db7406566ec0e9305acde9205763d4e9d7a65f257f3d5c47c15f393628ec.exe
File created	C:\Users\Admin\AppData\Local\fbd5ad42a5bcdf761431c4983e04fd19\Admin@UTKBEBLO_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	bb96db7406566ec0e9305acde9205763d4e9d7a65f257f3d5c47c15f393628ec.exe
File created	C:\Users\Admin\AppData\Local\fbd5ad42a5bcdf761431c4983e04fd19\Admin@UTKBEBLO_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	bb96db7406566ec0e9305acde9205763d4e9d7a65f257f3d5c47c15f393628ec.exe
File created	C:\Users\Admin\AppData\Local\fbd5ad42a5bcdf761431c4983e04fd19\Admin@UTKBEBLO_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	bb96db7406566ec0e9305acde9205763d4e9d7a65f257f3d5c47c15f393628ec.exe
File created	C:\Users\Admin\AppData\Local\fbd5ad42a5bcdf761431c4983e04fd19\Admin@UTKBEBLO_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	bb96db7406566ec0e9305acde9205763d4e9d7a65f257f3d5c47c15f393628ec.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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2844	3200	WerFault.exe	82

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	bb96db7406566ec0e9305acde9205763d4e9d7a65f257f3d5c47c15f393628ec.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
212	netsh.exe
3664	cmd.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3200	bb96db7406566ec0e9305acde9205763d4e9d7a65f257f3d5c47c15f393628ec.exe
3200	bb96db7406566ec0e9305acde9205763d4e9d7a65f257f3d5c47c15f393628ec.exe
3200	bb96db7406566ec0e9305acde9205763d4e9d7a65f257f3d5c47c15f393628ec.exe
3200	bb96db7406566ec0e9305acde9205763d4e9d7a65f257f3d5c47c15f393628ec.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3200	bb96db7406566ec0e9305acde9205763d4e9d7a65f257f3d5c47c15f393628ec.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3200 wrote to memory of 3664	3200	bb96db7406566ec0e9305acde9205763d4e9d7a65f257f3d5c47c15f393628ec.exe	85
PID 3200 wrote to memory of 3664	3200	bb96db7406566ec0e9305acde9205763d4e9d7a65f257f3d5c47c15f393628ec.exe	85
PID 3200 wrote to memory of 3664	3200	bb96db7406566ec0e9305acde9205763d4e9d7a65f257f3d5c47c15f393628ec.exe	85
PID 3664 wrote to memory of 4732	3664	cmd.exe	87
PID 3664 wrote to memory of 4732	3664	cmd.exe	87
PID 3664 wrote to memory of 4732	3664	cmd.exe	87
PID 3664 wrote to memory of 212	3664	cmd.exe	88
PID 3664 wrote to memory of 212	3664	cmd.exe	88
PID 3664 wrote to memory of 212	3664	cmd.exe	88
PID 3664 wrote to memory of 4808	3664	cmd.exe	89
PID 3664 wrote to memory of 4808	3664	cmd.exe	89
PID 3664 wrote to memory of 4808	3664	cmd.exe	89
PID 3200 wrote to memory of 3192	3200	bb96db7406566ec0e9305acde9205763d4e9d7a65f257f3d5c47c15f393628ec.exe	94
PID 3200 wrote to memory of 3192	3200	bb96db7406566ec0e9305acde9205763d4e9d7a65f257f3d5c47c15f393628ec.exe	94
PID 3200 wrote to memory of 3192	3200	bb96db7406566ec0e9305acde9205763d4e9d7a65f257f3d5c47c15f393628ec.exe	94
PID 3192 wrote to memory of 4984	3192	cmd.exe	96
PID 3192 wrote to memory of 4984	3192	cmd.exe	96
PID 3192 wrote to memory of 4984	3192	cmd.exe	96
PID 3192 wrote to memory of 3960	3192	cmd.exe	97
PID 3192 wrote to memory of 3960	3192	cmd.exe	97
PID 3192 wrote to memory of 3960	3192	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\bb96db7406566ec0e9305acde9205763d4e9d7a65f257f3d5c47c15f393628ec.exe
"C:\Users\Admin\AppData\Local\Temp\bb96db7406566ec0e9305acde9205763d4e9d7a65f257f3d5c47c15f393628ec.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:3200
- 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:3664
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4732
- - 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:212
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4808
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3200 -s 2088
  2⤵
  - Program crash
  PID:2844
- 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:3192
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4984
- - 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:3960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3200 -ip 3200
1⤵
PID:4908

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

memory/3200-0-0x00000000743DE000-0x00000000743DF000-memory.dmp

Filesize
4KB

Download
memory/3200-1-0x0000000000FD0000-0x0000000001000000-memory.dmp

Filesize
192KB

Download
memory/3200-2-0x00000000058A0000-0x0000000005906000-memory.dmp

Filesize
408KB

Download
memory/3200-3-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download
memory/3200-60-0x0000000006B50000-0x0000000006BE2000-memory.dmp

Filesize
584KB

Download
memory/3200-63-0x0000000007500000-0x0000000007AA4000-memory.dmp

Filesize
5.6MB

Download
memory/3200-76-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads