asyncrat | 0fccb88dd106638ef91db078bb6534849cc1b12f68bb1a08a70db89d338a10f0

General

Target

XWorm_V3.1/crack.exe
Size

175KB
MD5

d2cc190ae73674db35f0dedfb1b76d0b
SHA1

02cc0edba7f750c8069ded02726adadf8faf5a69
SHA256

e7f0d6d12608ea3a553998fef002ec41d346b29e32634a3279c2e4be10aa9e97
SHA512

45d085308e73554674dcb480d0c37ce289df28f1b04b2e3f6932c112d3a388443d60f9cfbeed9038b2688b858bf1c019591d55ad5f670d998c9d721083da4db0
SSDEEP

3072:Be8p6ewdOIwQx76vK/bvTv0cU+lL/dMlZZUZ0b2gTHwA5E+WpCc:d6ewwIwQJ6vKX0c5MlYZ0b2Q

Score

10^/10

asyncrat stormkitty default 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/bot6133753310:AAHOsvlWQDP23zggObP6jfcNHkvhUg1zl1k/sendMessage?chat_id=5876226574

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 3 IoCs

Processes:

resource	yara_rule
behavioral3/memory/1220-54-0x0000000000E60000-0x0000000000E92000-memory.dmp	family_stormkitty
behavioral3/memory/1220-55-0x0000000000B60000-0x0000000000BA0000-memory.dmp	family_stormkitty
behavioral3/memory/1220-56-0x0000000000B60000-0x0000000000BA0000-memory.dmp	family_stormkitty

Async RAT payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral3/memory/1220-54-0x0000000000E60000-0x0000000000E92000-memory.dmp	asyncrat
behavioral3/memory/1220-55-0x0000000000B60000-0x0000000000BA0000-memory.dmp	asyncrat
behavioral3/memory/1220-56-0x0000000000B60000-0x0000000000BA0000-memory.dmp	asyncrat

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
T1081

Drops desktop.ini file(s) 6 IoCs

Processes:

crack.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Local\140dc5ec3cb7ef8c8c9c890b57ce9fb0\Admin@THEQWNRW_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	crack.exe
File created	C:\Users\Admin\AppData\Local\140dc5ec3cb7ef8c8c9c890b57ce9fb0\Admin@THEQWNRW_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	crack.exe
File opened for modification	C:\Users\Admin\AppData\Local\140dc5ec3cb7ef8c8c9c890b57ce9fb0\Admin@THEQWNRW_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	crack.exe
File opened for modification	C:\Users\Admin\AppData\Local\140dc5ec3cb7ef8c8c9c890b57ce9fb0\Admin@THEQWNRW_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	crack.exe
File created	C:\Users\Admin\AppData\Local\140dc5ec3cb7ef8c8c9c890b57ce9fb0\Admin@THEQWNRW_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	crack.exe
File created	C:\Users\Admin\AppData\Local\140dc5ec3cb7ef8c8c9c890b57ce9fb0\Admin@THEQWNRW_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	crack.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.

Processes:

flow ioc

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

flow	ioc
4	icanhazip.com

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

Processes:

crack.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	crack.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	crack.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

crack.exe

pid process

1220 crack.exe
1220 crack.exe
1220 crack.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

crack.exe

description pid process

Token: SeDebugPrivilege 1220 crack.exe

pid	process
1220	crack.exe
1220	crack.exe
1220	crack.exe

description	pid	process
Token: SeDebugPrivilege	1220	crack.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

crack.execmd.execmd.exe

description	pid	process	target process
PID 1220 wrote to memory of 916	1220	crack.exe	cmd.exe
PID 1220 wrote to memory of 916	1220	crack.exe	cmd.exe
PID 1220 wrote to memory of 916	1220	crack.exe	cmd.exe
PID 1220 wrote to memory of 916	1220	crack.exe	cmd.exe
PID 916 wrote to memory of 1716	916	cmd.exe	chcp.com
PID 916 wrote to memory of 1716	916	cmd.exe	chcp.com
PID 916 wrote to memory of 1716	916	cmd.exe	chcp.com
PID 916 wrote to memory of 1716	916	cmd.exe	chcp.com
PID 916 wrote to memory of 1720	916	cmd.exe	netsh.exe
PID 916 wrote to memory of 1720	916	cmd.exe	netsh.exe
PID 916 wrote to memory of 1720	916	cmd.exe	netsh.exe
PID 916 wrote to memory of 1720	916	cmd.exe	netsh.exe
PID 916 wrote to memory of 1600	916	cmd.exe	findstr.exe
PID 916 wrote to memory of 1600	916	cmd.exe	findstr.exe
PID 916 wrote to memory of 1600	916	cmd.exe	findstr.exe
PID 916 wrote to memory of 1600	916	cmd.exe	findstr.exe
PID 1220 wrote to memory of 1692	1220	crack.exe	cmd.exe
PID 1220 wrote to memory of 1692	1220	crack.exe	cmd.exe
PID 1220 wrote to memory of 1692	1220	crack.exe	cmd.exe
PID 1220 wrote to memory of 1692	1220	crack.exe	cmd.exe
PID 1692 wrote to memory of 1844	1692	cmd.exe	chcp.com
PID 1692 wrote to memory of 1844	1692	cmd.exe	chcp.com
PID 1692 wrote to memory of 1844	1692	cmd.exe	chcp.com
PID 1692 wrote to memory of 1844	1692	cmd.exe	chcp.com
PID 1692 wrote to memory of 1944	1692	cmd.exe	netsh.exe
PID 1692 wrote to memory of 1944	1692	cmd.exe	netsh.exe
PID 1692 wrote to memory of 1944	1692	cmd.exe	netsh.exe
PID 1692 wrote to memory of 1944	1692	cmd.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\XWorm_V3.1\crack.exe
"C:\Users\Admin\AppData\Local\Temp\XWorm_V3.1\crack.exe"
1⤵
- Drops desktop.ini file(s)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1220

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
2⤵
- Suspicious use of WriteProcessMemory
PID:916

C:\Windows\SysWOW64\chcp.com
chcp 65001
3⤵
PID:1716

C:\Windows\SysWOW64\netsh.exe
netsh wlan show profile
3⤵
PID:1720

C:\Windows\SysWOW64\findstr.exe
findstr All
3⤵
PID:1600

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
2⤵
- Suspicious use of WriteProcessMemory
PID:1692

C:\Windows\SysWOW64\chcp.com
chcp 65001
3⤵
PID:1844

C:\Windows\SysWOW64\netsh.exe
netsh wlan show networks mode=bssid
3⤵
PID:1944

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\2d4994e1c1b26bffefcaeb378b5b46f2\msgid.dat
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/1220-54-0x0000000000E60000-0x0000000000E92000-memory.dmp

Filesize
200KB

Download
memory/1220-55-0x0000000000B60000-0x0000000000BA0000-memory.dmp

Filesize
256KB

Download
memory/1220-56-0x0000000000B60000-0x0000000000BA0000-memory.dmp

Filesize
256KB

Download
memory/1220-124-0x0000000000B60000-0x0000000000BA0000-memory.dmp

Filesize
256KB

Download
memory/1220-212-0x0000000000B60000-0x0000000000BA0000-memory.dmp

Filesize
256KB

Download
memory/1720-207-0x000000006E990000-0x000000006E99C000-memory.dmp

Filesize
48KB

Download
memory/1720-208-0x000000006E990000-0x000000006E9A5000-memory.dmp

Filesize
84KB

Download
memory/1720-209-0x000000006E970000-0x000000006E985000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads