asyncrat | 27d4fe53b38807a49886f761932f495bb5998c5d2236f6858d693c35dd032fad

General

Target

client2.exe
Size

170KB
MD5

a50a84ae0cbdfadf20fabbb3b3852e3d
SHA1

0002bde2e29c5deb54b7071d7c84206232ef306e
SHA256

27d4fe53b38807a49886f761932f495bb5998c5d2236f6858d693c35dd032fad
SHA512

27345bd277812cff1eb46e4aeae42153bef6ba9124671d3585b5ca93b14f1f8ef2a7eb7c25499a02c6900e3d0c1e13028f6c32a867098755e4f4121f13654f20
SSDEEP

3072:++STW8djpN6izj8mZwdJqutB+YDpqIPu/i9bVK2cHTzOD6+Wp7:j8XN6W8mmHPtppXPSi9b4BO

Score

10^/10

asyncrat stormkitty default credential_access 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/bot7074211690:AAFHdtGIEk1j3FpHjh6_p8Xjh9rfZDo4uSc/sendMessage?chat_id=6291749148

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/3704-1-0x00000000002E0000-0x0000000000310000-memory.dmp	family_stormkitty

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
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\964acea0a2c15c433824bc466f3d2168\Admin@ODZKDRGV_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	client2.exe
File opened for modification	C:\Users\Admin\AppData\Local\964acea0a2c15c433824bc466f3d2168\Admin@ODZKDRGV_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	client2.exe
File created	C:\Users\Admin\AppData\Local\964acea0a2c15c433824bc466f3d2168\Admin@ODZKDRGV_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	client2.exe
File created	C:\Users\Admin\AppData\Local\964acea0a2c15c433824bc466f3d2168\Admin@ODZKDRGV_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	client2.exe
File created	C:\Users\Admin\AppData\Local\964acea0a2c15c433824bc466f3d2168\Admin@ODZKDRGV_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	client2.exe
File created	C:\Users\Admin\AppData\Local\964acea0a2c15c433824bc466f3d2168\Admin@ODZKDRGV_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	client2.exe
File created	C:\Users\Admin\AppData\Local\964acea0a2c15c433824bc466f3d2168\Admin@ODZKDRGV_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	client2.exe
File opened for modification	C:\Users\Admin\AppData\Local\964acea0a2c15c433824bc466f3d2168\Admin@ODZKDRGV_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	client2.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
30	icanhazip.com

Looks up geolocation information via web service
Uses a legitimate geolocation service to find the infected system's geolocation info.
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 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	client2.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
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

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
1212	cmd.exe
4468	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	client2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	client2.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
3704	client2.exe
3704	client2.exe
3704	client2.exe
3704	client2.exe
3704	client2.exe
3704	client2.exe
3704	client2.exe
3704	client2.exe
3704	client2.exe
3704	client2.exe
3704	client2.exe
3704	client2.exe
3704	client2.exe
3704	client2.exe
3704	client2.exe
3704	client2.exe
3704	client2.exe
3704	client2.exe
3704	client2.exe
3704	client2.exe
3704	client2.exe
3704	client2.exe
3704	client2.exe
3704	client2.exe
3704	client2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3704	client2.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3704 wrote to memory of 1212	3704	client2.exe	95
PID 3704 wrote to memory of 1212	3704	client2.exe	95
PID 3704 wrote to memory of 1212	3704	client2.exe	95
PID 1212 wrote to memory of 4300	1212	cmd.exe	97
PID 1212 wrote to memory of 4300	1212	cmd.exe	97
PID 1212 wrote to memory of 4300	1212	cmd.exe	97
PID 1212 wrote to memory of 4468	1212	cmd.exe	98
PID 1212 wrote to memory of 4468	1212	cmd.exe	98
PID 1212 wrote to memory of 4468	1212	cmd.exe	98
PID 1212 wrote to memory of 5060	1212	cmd.exe	99
PID 1212 wrote to memory of 5060	1212	cmd.exe	99
PID 1212 wrote to memory of 5060	1212	cmd.exe	99
PID 3704 wrote to memory of 1620	3704	client2.exe	100
PID 3704 wrote to memory of 1620	3704	client2.exe	100
PID 3704 wrote to memory of 1620	3704	client2.exe	100
PID 1620 wrote to memory of 1668	1620	cmd.exe	102
PID 1620 wrote to memory of 1668	1620	cmd.exe	102
PID 1620 wrote to memory of 1668	1620	cmd.exe	102
PID 1620 wrote to memory of 3020	1620	cmd.exe	103
PID 1620 wrote to memory of 3020	1620	cmd.exe	103
PID 1620 wrote to memory of 3020	1620	cmd.exe	103

C:\Users\Admin\AppData\Local\Temp\client2.exe
"C:\Users\Admin\AppData\Local\Temp\client2.exe"
1⤵
- 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:3704
- 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:1212
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4300
- - 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:4468
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5060
- 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:1620
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1668
- - 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:3020

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

Query Registry

System Information Discovery

1

T1082

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\964acea0a2c15c433824bc466f3d2168\Admin@ODZKDRGV_en-US\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
C:\Users\Admin\AppData\Local\964acea0a2c15c433824bc466f3d2168\Admin@ODZKDRGV_en-US\System\Process.txt

Filesize
4KB

MD5
1e2769981eccc12894d5b37d75fdb1fb

SHA1
74287f43ff6341596922a17f4d3a1bbc3ec2e16f

SHA256
7bad6ab4307dce5beee0bd6e541d07063444b98c27d720f9d7d4d335dd1b7ae8

SHA512
8f33c0404a4d186588684077b6a83de3cb7655898ffc6f70fdbdf849bd9e358f7eb489e4c460882b31454684bc564b3a1527056541626f6f163795f2a542dcbc

Download Submit
C:\Users\Admin\AppData\Local\d3c08ea09d4553898b0e42ec7b345f0a\msgid.dat

Filesize
4B

MD5
4f1927fff6e092185d6a6f4c8466e421

SHA1
766b9f068bb45d62e9a2ddb3a91bf3881bbb1eaa

SHA256
77264818a004f87091854cd1dd037092477a3eb340b05c1f31a76ad78988ace9

SHA512
255181e6447e17c644a16c5188c1670df0a7d908f56d1719466d79a56958ec12174fd8408b23afa379eb8c8e52ad4716ab9b3f4cf2f84c11017e621c59944459

Download Submit
memory/3704-3-0x0000000004CC0000-0x0000000004D26000-memory.dmp

Filesize
408KB

Download
memory/3704-0-0x0000000074E7E000-0x0000000074E7F000-memory.dmp

Filesize
4KB

Download
memory/3704-120-0x0000000074E7E000-0x0000000074E7F000-memory.dmp

Filesize
4KB

Download
memory/3704-2-0x0000000074E70000-0x0000000075620000-memory.dmp

Filesize
7.7MB

Download
memory/3704-143-0x0000000074E70000-0x0000000075620000-memory.dmp

Filesize
7.7MB

Download
memory/3704-152-0x0000000074E70000-0x0000000075620000-memory.dmp

Filesize
7.7MB

Download
memory/3704-154-0x0000000005840000-0x00000000058D2000-memory.dmp

Filesize
584KB

Download
memory/3704-155-0x0000000005E90000-0x0000000006434000-memory.dmp

Filesize
5.6MB

Download
memory/3704-159-0x0000000005B50000-0x0000000005B5A000-memory.dmp

Filesize
40KB

Download
memory/3704-1-0x00000000002E0000-0x0000000000310000-memory.dmp

Filesize
192KB

Download
memory/3704-165-0x0000000006800000-0x0000000006812000-memory.dmp

Filesize
72KB

Download
memory/3704-190-0x0000000074E70000-0x0000000075620000-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