asyncrat | 9e0ef658fa66e572a25e81d23bef38b6dfba48d47fd6aa8f890ae793637a9d46

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-12-2024 03:45

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General

Target

2024-12-16_3319633e286dc7e8f4404f9843054947_asyncrat_avoslocker_luca-stealer.exe
Size

1020KB
MD5

3319633e286dc7e8f4404f9843054947
SHA1

d457424e6cd08e833bee4074044ec95a25b87e62
SHA256

9e0ef658fa66e572a25e81d23bef38b6dfba48d47fd6aa8f890ae793637a9d46
SHA512

b2dd78ef51b2dce34b13ad6aaf32c89b51d90a5ec8204ee4ea4f4088349d00fe23430052f40a4feb1098c7349a7d428922a65a894fbc3ecfb98c94f30dc43684
SSDEEP

24576:4gQ7wCw8QIxgAjwYhWaM8hYFSOKb1WQIVrgfbcT:o7wCwKxgAUYhWaM8hYI/IVczcT

Score

10^/10

asyncrat stormkitty default discovery persistence privilege_escalation rat spyware stealer

Malware Config

Extracted

Family

asyncrat

Botnet

Default

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

https://api.telegram.org/bot5607633317:AAF7mJZ9cSjvqBGaPWCjQmtzSkwptz0mlo0/sendMessage?chat_id=5773399182

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 2 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b18-7.dat	family_stormkitty
behavioral2/memory/2772-26-0x0000000000FF0000-0x0000000001020000-memory.dmp	family_stormkitty

Stormkitty family
stormkitty

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x000c000000023b18-7.dat	family_asyncrat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	2024-12-16_3319633e286dc7e8f4404f9843054947_asyncrat_avoslocker_luca-stealer.exe

Executes dropped EXE 2 IoCs

pid	Process
2772	LocalWceiaSCNvc.exe
4140	LocalIxzqApCJ_q.exe

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\08d88b1e7924064d96196f85512feda3\Admin@GYHASOLS_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	LocalWceiaSCNvc.exe
File opened for modification	C:\Users\Admin\AppData\Local\08d88b1e7924064d96196f85512feda3\Admin@GYHASOLS_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	LocalWceiaSCNvc.exe
File opened for modification	C:\Users\Admin\AppData\Local\08d88b1e7924064d96196f85512feda3\Admin@GYHASOLS_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	LocalWceiaSCNvc.exe
File created	C:\Users\Admin\AppData\Local\08d88b1e7924064d96196f85512feda3\Admin@GYHASOLS_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	LocalWceiaSCNvc.exe
File created	C:\Users\Admin\AppData\Local\08d88b1e7924064d96196f85512feda3\Admin@GYHASOLS_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	LocalWceiaSCNvc.exe
File created	C:\Users\Admin\AppData\Local\08d88b1e7924064d96196f85512feda3\Admin@GYHASOLS_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	LocalWceiaSCNvc.exe
File created	C:\Users\Admin\AppData\Local\08d88b1e7924064d96196f85512feda3\Admin@GYHASOLS_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	LocalWceiaSCNvc.exe
File created	C:\Users\Admin\AppData\Local\08d88b1e7924064d96196f85512feda3\Admin@GYHASOLS_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	LocalWceiaSCNvc.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
14	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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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 9 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	LocalWceiaSCNvc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	LocalIxzqApCJ_q.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	findstr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	chcp.com
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
1048	cmd.exe
3596	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	LocalWceiaSCNvc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	LocalWceiaSCNvc.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe
2772	LocalWceiaSCNvc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2772	LocalWceiaSCNvc.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 2772	1448	2024-12-16_3319633e286dc7e8f4404f9843054947_asyncrat_avoslocker_luca-stealer.exe	82
PID 1448 wrote to memory of 2772	1448	2024-12-16_3319633e286dc7e8f4404f9843054947_asyncrat_avoslocker_luca-stealer.exe	82
PID 1448 wrote to memory of 2772	1448	2024-12-16_3319633e286dc7e8f4404f9843054947_asyncrat_avoslocker_luca-stealer.exe	82
PID 1448 wrote to memory of 4140	1448	2024-12-16_3319633e286dc7e8f4404f9843054947_asyncrat_avoslocker_luca-stealer.exe	83
PID 1448 wrote to memory of 4140	1448	2024-12-16_3319633e286dc7e8f4404f9843054947_asyncrat_avoslocker_luca-stealer.exe	83
PID 1448 wrote to memory of 4140	1448	2024-12-16_3319633e286dc7e8f4404f9843054947_asyncrat_avoslocker_luca-stealer.exe	83
PID 2772 wrote to memory of 1048	2772	LocalWceiaSCNvc.exe	86
PID 2772 wrote to memory of 1048	2772	LocalWceiaSCNvc.exe	86
PID 2772 wrote to memory of 1048	2772	LocalWceiaSCNvc.exe	86
PID 1048 wrote to memory of 4932	1048	cmd.exe	88
PID 1048 wrote to memory of 4932	1048	cmd.exe	88
PID 1048 wrote to memory of 4932	1048	cmd.exe	88
PID 1048 wrote to memory of 3596	1048	cmd.exe	89
PID 1048 wrote to memory of 3596	1048	cmd.exe	89
PID 1048 wrote to memory of 3596	1048	cmd.exe	89
PID 1048 wrote to memory of 2308	1048	cmd.exe	90
PID 1048 wrote to memory of 2308	1048	cmd.exe	90
PID 1048 wrote to memory of 2308	1048	cmd.exe	90
PID 2772 wrote to memory of 3048	2772	LocalWceiaSCNvc.exe	91
PID 2772 wrote to memory of 3048	2772	LocalWceiaSCNvc.exe	91
PID 2772 wrote to memory of 3048	2772	LocalWceiaSCNvc.exe	91
PID 3048 wrote to memory of 3844	3048	cmd.exe	93
PID 3048 wrote to memory of 3844	3048	cmd.exe	93
PID 3048 wrote to memory of 3844	3048	cmd.exe	93
PID 3048 wrote to memory of 5040	3048	cmd.exe	94
PID 3048 wrote to memory of 5040	3048	cmd.exe	94
PID 3048 wrote to memory of 5040	3048	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\2024-12-16_3319633e286dc7e8f4404f9843054947_asyncrat_avoslocker_luca-stealer.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-16_3319633e286dc7e8f4404f9843054947_asyncrat_avoslocker_luca-stealer.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1448
- C:\Users\Admin\AppData\LocalWceiaSCNvc.exe
  "C:\Users\Admin\AppData\LocalWceiaSCNvc.exe"
  2⤵
  - Executes dropped EXE
  - 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:2772
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Wi-Fi Discovery
    - Suspicious use of WriteProcessMemory
    PID:1048
  - - C:\Windows\SysWOW64\chcp.com
      chcp 65001
      4⤵
      System Location Discovery: System Language Discovery
      PID:4932
  - - C:\Windows\SysWOW64\netsh.exe
      netsh wlan show profile
      4⤵
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Wi-Fi Discovery
      PID:3596
  - - C:\Windows\SysWOW64\findstr.exe
      findstr All
      4⤵
      System Location Discovery: System Language Discovery
      PID:2308
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3048
  - - C:\Windows\SysWOW64\chcp.com
      chcp 65001
      4⤵
      System Location Discovery: System Language Discovery
      PID:3844
  - - C:\Windows\SysWOW64\netsh.exe
      netsh wlan show networks mode=bssid
      4⤵
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:5040
- C:\Users\Admin\AppData\LocalIxzqApCJ_q.exe
  "C:\Users\Admin\AppData\LocalIxzqApCJ_q.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4140

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Wi-Fi Discovery

T1016.002

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalIxzqApCJ_q.exe

Filesize
684KB

MD5
5272af9180ef3c65c8137eb8a22b6115

SHA1
64b70bc690a39f0a6f9e2ef3b38345047ebbc44f

SHA256
0b8b1d961c54991269efcfb1472eea3609f8fc415937c873cf614780d59b2da7

SHA512
66263b0b3e85f377dc6b66662fb5cea23d2487fae0d35bc32968dd12e72c9a16925716ee13c7b44fb26371291ecacaa1f04df522262db186bede9f8b3d6e61ef

Download Submit
C:\Users\Admin\AppData\LocalWceiaSCNvc.exe

Filesize
170KB

MD5
b9f6fd7922374399afdaffe496141a14

SHA1
bfcb2058efc283bf942d4a5dc6c22bf7762992ff

SHA256
55124459b145d79593dd1b6db2be7ccee7ca6df9643a20d398cf53d690a908c7

SHA512
60db5c1baa61bd4f8c5354c8168f221c1c052ab0f249febfa05e28763228b80978065a8c57d8d530098514c51745a2d56798e8f0c4e1c6890970eca00d7c2c3d

Download Submit
C:\Users\Admin\AppData\Local\08d88b1e7924064d96196f85512feda3\Admin@GYHASOLS_en-US\System\Process.txt

Filesize
4KB

MD5
935356898f7a209525c9b3205d91c88d

SHA1
daa7ba09691ba5b5a41f748a5183473eda7f28fb

SHA256
af7eea52389893c11a7236653c90c52569bd2dc18fa2eef88bb56f9c277898d4

SHA512
e6a116e6c0e781c031903ed59e4f8dea7b3d647ceeb6283fd6a45afc6b8bd1448333372369a272a5d24b8dab5bdc1aa4632004bf639fe5768c5e4b5b2fe9c717

Download Submit
C:\Users\Admin\AppData\Local\f84b08a7374ddd2f57075ebb9c0b405b\msgid.dat

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/1448-0-0x00007FFF48725000-0x00007FFF48726000-memory.dmp

Filesize
4KB

Download
memory/1448-1-0x00007FFF48470000-0x00007FFF48E11000-memory.dmp

Filesize
9.6MB

Download
memory/1448-3-0x00007FFF48470000-0x00007FFF48E11000-memory.dmp

Filesize
9.6MB

Download
memory/1448-27-0x00007FFF48470000-0x00007FFF48E11000-memory.dmp

Filesize
9.6MB

Download
memory/2772-29-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/2772-30-0x0000000005B20000-0x0000000005B86000-memory.dmp

Filesize
408KB

Download
memory/2772-154-0x0000000074DFE000-0x0000000074DFF000-memory.dmp

Filesize
4KB

Download
memory/2772-26-0x0000000000FF0000-0x0000000001020000-memory.dmp

Filesize
192KB

Download
memory/2772-171-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/2772-172-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/2772-174-0x0000000006530000-0x00000000065C2000-memory.dmp

Filesize
584KB

Download
memory/2772-175-0x0000000006B80000-0x0000000007124000-memory.dmp

Filesize
5.6MB

Download
memory/2772-179-0x0000000006650000-0x000000000665A000-memory.dmp

Filesize
40KB

Download
memory/2772-25-0x0000000074DFE000-0x0000000074DFF000-memory.dmp

Filesize
4KB

Download
memory/2772-185-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download