asyncrat | 99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733

General

Target

99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
Size

170KB
MD5

efbe77e5aaf51ee1be7a02d2d55f6171
SHA1

5e88c3031a53715b82a66165d192551226c3de7f
SHA256

99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733
SHA512

8ba2f5c72e40249f73dc092054b118c9d3faf98978a5aac06662869ef4ed5f2b974759cf1bee2155d40e15bc647e2499c621a0915f6a79b07c640bff76e2d2db
SSDEEP

3072:O+STW8djpN6izj8mZwkYXvYUCEqIPu/i9bsJ2cjJI6+WpL:z8XN6W8mmBn5XPSi9boD

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/bot7948363538:AAGPxAvOVmzz8x-5s0mHYlUprnmFgCHGEyo/sendMessage?chat_id=2115574643

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/4680-1-0x0000000000990000-0x00000000009C0000-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\07954f0b235ca051837663776b5921d2\Admin@ZTSLLRFH_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
File opened for modification	C:\Users\Admin\AppData\Local\07954f0b235ca051837663776b5921d2\Admin@ZTSLLRFH_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
File created	C:\Users\Admin\AppData\Local\07954f0b235ca051837663776b5921d2\Admin@ZTSLLRFH_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
File created	C:\Users\Admin\AppData\Local\07954f0b235ca051837663776b5921d2\Admin@ZTSLLRFH_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
File created	C:\Users\Admin\AppData\Local\07954f0b235ca051837663776b5921d2\Admin@ZTSLLRFH_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
File created	C:\Users\Admin\AppData\Local\07954f0b235ca051837663776b5921d2\Admin@ZTSLLRFH_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
File created	C:\Users\Admin\AppData\Local\07954f0b235ca051837663776b5921d2\Admin@ZTSLLRFH_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
File opened for modification	C:\Users\Admin\AppData\Local\07954f0b235ca051837663776b5921d2\Admin@ZTSLLRFH_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.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
17	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.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

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
216	cmd.exe
5012	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4680 wrote to memory of 216	4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe	91
PID 4680 wrote to memory of 216	4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe	91
PID 4680 wrote to memory of 216	4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe	91
PID 216 wrote to memory of 2988	216	cmd.exe	93
PID 216 wrote to memory of 2988	216	cmd.exe	93
PID 216 wrote to memory of 2988	216	cmd.exe	93
PID 216 wrote to memory of 5012	216	cmd.exe	94
PID 216 wrote to memory of 5012	216	cmd.exe	94
PID 216 wrote to memory of 5012	216	cmd.exe	94
PID 216 wrote to memory of 508	216	cmd.exe	95
PID 216 wrote to memory of 508	216	cmd.exe	95
PID 216 wrote to memory of 508	216	cmd.exe	95
PID 4680 wrote to memory of 1588	4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe	97
PID 4680 wrote to memory of 1588	4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe	97
PID 4680 wrote to memory of 1588	4680	99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe	97
PID 1588 wrote to memory of 2892	1588	cmd.exe	99
PID 1588 wrote to memory of 2892	1588	cmd.exe	99
PID 1588 wrote to memory of 2892	1588	cmd.exe	99
PID 1588 wrote to memory of 3604	1588	cmd.exe	100
PID 1588 wrote to memory of 3604	1588	cmd.exe	100
PID 1588 wrote to memory of 3604	1588	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.exe
"C:\Users\Admin\AppData\Local\Temp\99d2c277b2dd65cd1dd8c954501043a2ec5891d339b7b8ddfad373841d9a9733.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:4680
- 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:216
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2988
- - 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:5012
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:508
- 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:1588
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2892
- - 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:3604

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\07954f0b235ca051837663776b5921d2\Admin@ZTSLLRFH_en-US\System\Process.txt

Filesize
4KB

MD5
c01b669c8192ea3fe609e9a49666ca9b

SHA1
8e47140a6583fcd997f70352680e4bd1962f958a

SHA256
4e9bada32496421587ff7743b86ab69e65d2f0059749a15b42af8370f33990c0

SHA512
04858bf5474223718a0b57b01c4dffd250ce2797eeb94a8baadc4f2f5c6dc6a6189b4b974e5c135eba2671f2cc3089b6fc330034f09ab1bf1677ec99ab3a0e65

Download Submit
C:\Users\Admin\AppData\Local\07954f0b235ca051837663776b5921d2\msgid.dat

Filesize
2B

MD5
d9d4f495e875a2e075a1a4a6e1b9770f

SHA1
fe2ef495a1152561572949784c16bf23abb28057

SHA256
25fc0e7096fc653718202dc30b0c580b8ab87eac11a700cba03a7c021bc35b0c

SHA512
9c3211509a9eee80f881f6b6666ab82df6bec222c84ba583c5bb636a0a0d811d850524e9adba61950e09fcd06ffacdd0ee164220ac09a2319b2f35db219fc8c9

Download Submit
memory/4680-136-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/4680-3-0x0000000005230000-0x0000000005296000-memory.dmp

Filesize
408KB

Download
memory/4680-114-0x0000000074D5E000-0x0000000074D5F000-memory.dmp

Filesize
4KB

Download
memory/4680-2-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/4680-0-0x0000000074D5E000-0x0000000074D5F000-memory.dmp

Filesize
4KB

Download
memory/4680-146-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/4680-148-0x0000000005E10000-0x0000000005EA2000-memory.dmp

Filesize
584KB

Download
memory/4680-149-0x0000000006460000-0x0000000006A04000-memory.dmp

Filesize
5.6MB

Download
memory/4680-153-0x0000000005FB0000-0x0000000005FBA000-memory.dmp

Filesize
40KB

Download
memory/4680-1-0x0000000000990000-0x00000000009C0000-memory.dmp

Filesize
192KB

Download
memory/4680-159-0x0000000005FD0000-0x0000000005FE2000-memory.dmp

Filesize
72KB

Download
memory/4680-182-0x0000000074D50000-0x0000000075500000-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