asyncrat | 3163cce36440d2b1cbc265a56298664026d1ddf3885ca0962367028c88d07113

General

Target

62b6260c98e5afe1c20f7dfb0.exe
Size

225KB
MD5

62b6260c98e5afe1c20f7dfb031c6cbc
SHA1

cea0e62f31a0ab68ceb8fff68d36e8c09e8a9c83
SHA256

3163cce36440d2b1cbc265a56298664026d1ddf3885ca0962367028c88d07113
SHA512

a634c04fad375dcce6ae88b7a97a99fe5fec2dd10763b1fe4e9330ab2c57c0c17c5102c74f9077e8b346b770cfd98df677f797e49a0fecd882795b014b2a57e5
SSDEEP

3072:j+STW8djpN6izj8mZwlsdZ5b4GaBfVaDUbBKfDqRY6RAYnecDQ+g3H1vKx6+Wpw:A8XN6W8mmlKgfMDUbofDq+YnJ

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/bot6154715708:AAGKCDwosu3IuPM9RPnUhnOetL8Sftgqoy0/sendMessage?chat_id=1165040754

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/4280-133-0x0000000000E90000-0x0000000000ECE000-memory.dmp	family_stormkitty

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/4280-133-0x0000000000E90000-0x0000000000ECE000-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) 9 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\bca7081e94de694f9d2837d76c5c06e5\Admin@HGXAIWVE_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	62b6260c98e5afe1c20f7dfb0.exe
File created	C:\Users\Admin\AppData\Local\bca7081e94de694f9d2837d76c5c06e5\Admin@HGXAIWVE_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	62b6260c98e5afe1c20f7dfb0.exe
File opened for modification	C:\Users\Admin\AppData\Local\bca7081e94de694f9d2837d76c5c06e5\Admin@HGXAIWVE_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	62b6260c98e5afe1c20f7dfb0.exe
File opened for modification	C:\Users\Admin\AppData\Local\bca7081e94de694f9d2837d76c5c06e5\Admin@HGXAIWVE_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	62b6260c98e5afe1c20f7dfb0.exe
File created	C:\Users\Admin\AppData\Local\bca7081e94de694f9d2837d76c5c06e5\Admin@HGXAIWVE_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	62b6260c98e5afe1c20f7dfb0.exe
File created	C:\Users\Admin\AppData\Local\bca7081e94de694f9d2837d76c5c06e5\Admin@HGXAIWVE_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	62b6260c98e5afe1c20f7dfb0.exe
File created	C:\Users\Admin\AppData\Local\bca7081e94de694f9d2837d76c5c06e5\Admin@HGXAIWVE_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	62b6260c98e5afe1c20f7dfb0.exe
File opened for modification	C:\Users\Admin\AppData\Local\bca7081e94de694f9d2837d76c5c06e5\Admin@HGXAIWVE_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	62b6260c98e5afe1c20f7dfb0.exe
File created	C:\Users\Admin\AppData\Local\bca7081e94de694f9d2837d76c5c06e5\Admin@HGXAIWVE_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	62b6260c98e5afe1c20f7dfb0.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
29	icanhazip.com

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

Drops file in System32 directory 8 IoCs

description	ioc	Process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{46058CFB-7953-4EBD-AA59-06D1A44B5F4B}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{DABF5275-3672-4EC5-B689-D44FE31B8501}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{A4F83F26-D820-48CF-B459-AB55C163130B}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{506C6148-2683-4129-9C2D-996712678F64}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{A644AEF9-584E-4825-A150-91F33984AF6B}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{5A5ECCD9-B1D7-4A5E-A7D1-EEF9D2E13ABC}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{29C04AC6-57D9-4889-B79E-832F7683F5E6}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{F52717FF-F870-447A-ABD2-4ED924DBBFA1}.catalogItem	svchost.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	62b6260c98e5afe1c20f7dfb0.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	62b6260c98e5afe1c20f7dfb0.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe
4280	62b6260c98e5afe1c20f7dfb0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4280	62b6260c98e5afe1c20f7dfb0.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4280 wrote to memory of 1160	4280	62b6260c98e5afe1c20f7dfb0.exe	89
PID 4280 wrote to memory of 1160	4280	62b6260c98e5afe1c20f7dfb0.exe	89
PID 4280 wrote to memory of 1160	4280	62b6260c98e5afe1c20f7dfb0.exe	89
PID 1160 wrote to memory of 1132	1160	cmd.exe	91
PID 1160 wrote to memory of 1132	1160	cmd.exe	91
PID 1160 wrote to memory of 1132	1160	cmd.exe	91
PID 1160 wrote to memory of 2248	1160	cmd.exe	92
PID 1160 wrote to memory of 2248	1160	cmd.exe	92
PID 1160 wrote to memory of 2248	1160	cmd.exe	92
PID 1160 wrote to memory of 988	1160	cmd.exe	93
PID 1160 wrote to memory of 988	1160	cmd.exe	93
PID 1160 wrote to memory of 988	1160	cmd.exe	93
PID 4280 wrote to memory of 640	4280	62b6260c98e5afe1c20f7dfb0.exe	94
PID 4280 wrote to memory of 640	4280	62b6260c98e5afe1c20f7dfb0.exe	94
PID 4280 wrote to memory of 640	4280	62b6260c98e5afe1c20f7dfb0.exe	94
PID 640 wrote to memory of 2884	640	cmd.exe	96
PID 640 wrote to memory of 2884	640	cmd.exe	96
PID 640 wrote to memory of 2884	640	cmd.exe	96
PID 640 wrote to memory of 3860	640	cmd.exe	97
PID 640 wrote to memory of 3860	640	cmd.exe	97
PID 640 wrote to memory of 3860	640	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\62b6260c98e5afe1c20f7dfb0.exe
"C:\Users\Admin\AppData\Local\Temp\62b6260c98e5afe1c20f7dfb0.exe"
1⤵
- Drops desktop.ini file(s)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4280
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1160
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:1132
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show profile
    3⤵
    PID:2248
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    PID:988
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:640
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:2884
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show networks mode=bssid
    3⤵
    PID:3860

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
PID:4988

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\bca7081e94de694f9d2837d76c5c06e5\Admin@HGXAIWVE_en-US\System\Process.txt

Filesize
4KB

MD5
8d816547c91ec340f2dae5cfa4f36b41

SHA1
24110c19e802edd565d0b94845b46ff1cbaf9b61

SHA256
8134c6cc54982ea6e4d5ebefc6ea8ec443da4473e8f8c32fd26e0d197048e3d3

SHA512
7e3ba77d43ac5fc7abb577a91beb0fdeb8dda65315c0fa7dc49fb7c8e0f52cc31cd4541c2d37b8c39c8d88aaa24355e6a4961b2f08269ae750f0418230ddcfa6

Download Submit
C:\Users\Admin\AppData\Local\c257f6d81fc0b5457b9f036b1c8273ae\msgid.dat

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/4280-133-0x0000000000E90000-0x0000000000ECE000-memory.dmp

Filesize
248KB

Download
memory/4280-134-0x0000000005960000-0x0000000005970000-memory.dmp

Filesize
64KB

Download
memory/4280-135-0x0000000005970000-0x00000000059D6000-memory.dmp

Filesize
408KB

Download
memory/4280-214-0x0000000005960000-0x0000000005970000-memory.dmp

Filesize
64KB

Download
memory/4280-277-0x0000000006790000-0x0000000006822000-memory.dmp

Filesize
584KB

Download
memory/4280-278-0x0000000006DE0000-0x0000000007384000-memory.dmp

Filesize
5.6MB

Download
memory/4280-279-0x0000000005960000-0x0000000005970000-memory.dmp

Filesize
64KB

Download
memory/4280-283-0x00000000069B0000-0x00000000069BA000-memory.dmp

Filesize
40KB

Download
memory/4280-284-0x0000000005960000-0x0000000005970000-memory.dmp

Filesize
64KB

Download

Analysis

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