asyncrat | 4950eb74909bd6e739e38e57d8c6465c76ef108d65cac9f130d3f5c6d2fe943f

General

Target

0x0008000000017488-19.exe
Size

170KB
MD5

96014694a042d8344b910bc47d79337b
SHA1

9d19ab2f110ae58f30965a5a3d608cbf51986edb
SHA256

4950eb74909bd6e739e38e57d8c6465c76ef108d65cac9f130d3f5c6d2fe943f
SHA512

fe308c42b3ad2c3d73a834399aa12ea23f336103389181dface80a81da8be1ffd9a950cac802dc8a806ad318eb90a6bb6021d1acd9206a07749f83f2bb6cd03d
SSDEEP

3072:T+STW8djpN6izj8mZwlZbX5gD5sLIPu/i9bTJ2cJ+rj6+Wpn:w8XN6W8mmzmDWMPSi9b1O

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/bot7479631857:AAFuIUMNJYKHzJ3Bc9t4FSh9ZQXlqymhFnk/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
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/380-1-0x0000000000250000-0x0000000000280000-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) 8 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\1fbde7e52610841e99573eb395c9db73\Admin@ZTSLLRFH_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	0x0008000000017488-19.exe
File opened for modification	C:\Users\Admin\AppData\Local\1fbde7e52610841e99573eb395c9db73\Admin@ZTSLLRFH_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	0x0008000000017488-19.exe
File created	C:\Users\Admin\AppData\Local\1fbde7e52610841e99573eb395c9db73\Admin@ZTSLLRFH_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	0x0008000000017488-19.exe
File created	C:\Users\Admin\AppData\Local\1fbde7e52610841e99573eb395c9db73\Admin@ZTSLLRFH_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	0x0008000000017488-19.exe
File created	C:\Users\Admin\AppData\Local\1fbde7e52610841e99573eb395c9db73\Admin@ZTSLLRFH_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	0x0008000000017488-19.exe
File created	C:\Users\Admin\AppData\Local\1fbde7e52610841e99573eb395c9db73\Admin@ZTSLLRFH_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	0x0008000000017488-19.exe
File created	C:\Users\Admin\AppData\Local\1fbde7e52610841e99573eb395c9db73\Admin@ZTSLLRFH_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	0x0008000000017488-19.exe
File opened for modification	C:\Users\Admin\AppData\Local\1fbde7e52610841e99573eb395c9db73\Admin@ZTSLLRFH_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	0x0008000000017488-19.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
27	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 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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0x0008000000017488-19.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
1808	cmd.exe
3188	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	0x0008000000017488-19.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	0x0008000000017488-19.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe
380	0x0008000000017488-19.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	380	0x0008000000017488-19.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 380 wrote to memory of 1808	380	0x0008000000017488-19.exe	98
PID 380 wrote to memory of 1808	380	0x0008000000017488-19.exe	98
PID 380 wrote to memory of 1808	380	0x0008000000017488-19.exe	98
PID 1808 wrote to memory of 3840	1808	cmd.exe	100
PID 1808 wrote to memory of 3840	1808	cmd.exe	100
PID 1808 wrote to memory of 3840	1808	cmd.exe	100
PID 1808 wrote to memory of 3188	1808	cmd.exe	101
PID 1808 wrote to memory of 3188	1808	cmd.exe	101
PID 1808 wrote to memory of 3188	1808	cmd.exe	101
PID 1808 wrote to memory of 2216	1808	cmd.exe	102
PID 1808 wrote to memory of 2216	1808	cmd.exe	102
PID 1808 wrote to memory of 2216	1808	cmd.exe	102
PID 380 wrote to memory of 2640	380	0x0008000000017488-19.exe	103
PID 380 wrote to memory of 2640	380	0x0008000000017488-19.exe	103
PID 380 wrote to memory of 2640	380	0x0008000000017488-19.exe	103
PID 2640 wrote to memory of 4540	2640	cmd.exe	105
PID 2640 wrote to memory of 4540	2640	cmd.exe	105
PID 2640 wrote to memory of 4540	2640	cmd.exe	105
PID 2640 wrote to memory of 2844	2640	cmd.exe	106
PID 2640 wrote to memory of 2844	2640	cmd.exe	106
PID 2640 wrote to memory of 2844	2640	cmd.exe	106

C:\Users\Admin\AppData\Local\Temp\0x0008000000017488-19.exe
"C:\Users\Admin\AppData\Local\Temp\0x0008000000017488-19.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:380
- 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:1808
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3840
- - 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:3188
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2216
- 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:2640
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4540
- - 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:2844

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\1fbde7e52610841e99573eb395c9db73\Admin@ZTSLLRFH_en-US\System\Process.txt

Filesize
4KB

MD5
360f877d4dfd99124e17221dba35e36e

SHA1
7918f4ff61545b975718b3ce1d7dbd1d67f6bf73

SHA256
6b36973a97ff1e1625f1c6d420f32add5424a3b32334a30c85639ba111b2ce27

SHA512
c00039acb81b6cc86e10f5dbea50cdb31fc345a6dfdf5701a92ccb65c4cf6e06290d6a982f3bef2af42d2cf796287ab11ee24b14bbc2c9113a50195beaf97ef1

Download Submit
C:\Users\Admin\AppData\Local\f9a5672c8ae42b60bc91d0f432ceec59\msgid.dat

Filesize
5B

MD5
4d69584877da33f69ab75eb8c2f6c863

SHA1
8199738c309c6693a37c75ca1694d97b42e04819

SHA256
d7b5dd6cafc21f91cf1c67db515a68bb95f0622afba0ea39be7155127ba80e51

SHA512
326462cd96c5a401033c91ee5be5f922ca7e7b1d15ea7cb68900cf36c12c796e1deb0d2438c673fde3332d777db15d65c89f13bc39a4dda2b727725a43e706c0

Download Submit
memory/380-3-0x0000000004BF0000-0x0000000004C56000-memory.dmp

Filesize
408KB

Download
memory/380-0-0x0000000074F2E000-0x0000000074F2F000-memory.dmp

Filesize
4KB

Download
memory/380-91-0x0000000074F2E000-0x0000000074F2F000-memory.dmp

Filesize
4KB

Download
memory/380-110-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/380-2-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/380-152-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/380-154-0x0000000005750000-0x00000000057E2000-memory.dmp

Filesize
584KB

Download
memory/380-155-0x0000000005DA0000-0x0000000006344000-memory.dmp

Filesize
5.6MB

Download
memory/380-159-0x0000000005970000-0x000000000597A000-memory.dmp

Filesize
40KB

Download
memory/380-1-0x0000000000250000-0x0000000000280000-memory.dmp

Filesize
192KB

Download
memory/380-165-0x0000000005D70000-0x0000000005D82000-memory.dmp

Filesize
72KB

Download
memory/380-188-0x0000000074F20000-0x00000000756D0000-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