asyncrat | a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37

General

Target

a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
Size

170KB
MD5

1a0e44c80f16e988fff63e68ef3b5fe7
SHA1

014856e04597f480ff749bc3db8b06214acdaf6b
SHA256

a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37
SHA512

9d657943e86905bf22ca3c76e373bddf187ddddb84465fb50af4da9887920e9cacf17f91b0960d751c0ff99b1c282682f6d1d327d27dcfbb7aa9bb6d70b90144
SSDEEP

3072:++STW8djpN6izj8mZwdJqutB+YDpqIPu/i9bVK2cN/eU6+Wp7:j8XN6W8mmHPtppXPSi9b4D/

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/bot8106600591:AAFkNO73MtTmQuvi4fBDGE7hd2H7FNOw8eg/sendMessage?chat_id=6355289079

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
behavioral1/memory/3520-1-0x0000000000B40000-0x0000000000B70000-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) 7 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\87237e6fc6fae815b562cee61da34b35\Admin@JXPVMCYC_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
File created	C:\Users\Admin\AppData\Local\87237e6fc6fae815b562cee61da34b35\Admin@JXPVMCYC_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
File created	C:\Users\Admin\AppData\Local\87237e6fc6fae815b562cee61da34b35\Admin@JXPVMCYC_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
File created	C:\Users\Admin\AppData\Local\87237e6fc6fae815b562cee61da34b35\Admin@JXPVMCYC_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
File created	C:\Users\Admin\AppData\Local\87237e6fc6fae815b562cee61da34b35\Admin@JXPVMCYC_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
File opened for modification	C:\Users\Admin\AppData\Local\87237e6fc6fae815b562cee61da34b35\Admin@JXPVMCYC_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
File created	C:\Users\Admin\AppData\Local\87237e6fc6fae815b562cee61da34b35\Admin@JXPVMCYC_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.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
20	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
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	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.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
5340	cmd.exe
2024	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	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3520 wrote to memory of 5340	3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe	96
PID 3520 wrote to memory of 5340	3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe	96
PID 3520 wrote to memory of 5340	3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe	96
PID 5340 wrote to memory of 3624	5340	cmd.exe	98
PID 5340 wrote to memory of 3624	5340	cmd.exe	98
PID 5340 wrote to memory of 3624	5340	cmd.exe	98
PID 5340 wrote to memory of 2024	5340	cmd.exe	99
PID 5340 wrote to memory of 2024	5340	cmd.exe	99
PID 5340 wrote to memory of 2024	5340	cmd.exe	99
PID 5340 wrote to memory of 1108	5340	cmd.exe	100
PID 5340 wrote to memory of 1108	5340	cmd.exe	100
PID 5340 wrote to memory of 1108	5340	cmd.exe	100
PID 3520 wrote to memory of 4356	3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe	101
PID 3520 wrote to memory of 4356	3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe	101
PID 3520 wrote to memory of 4356	3520	a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe	101
PID 4356 wrote to memory of 3584	4356	cmd.exe	103
PID 4356 wrote to memory of 3584	4356	cmd.exe	103
PID 4356 wrote to memory of 3584	4356	cmd.exe	103
PID 4356 wrote to memory of 4472	4356	cmd.exe	104
PID 4356 wrote to memory of 4472	4356	cmd.exe	104
PID 4356 wrote to memory of 4472	4356	cmd.exe	104

C:\Users\Admin\AppData\Local\Temp\a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.exe
"C:\Users\Admin\AppData\Local\Temp\a3c821a3e92efe77dfedd22a9628c8bc8db37618b1d0f4cd55ea881136585a37.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:3520
- 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:5340
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3624
- - 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:2024
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1108
- 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:4356
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3584
- - 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:4472

Network

MITRE ATT&CK Enterprise v16

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\87237e6fc6fae815b562cee61da34b35\Admin@JXPVMCYC_en-US\System\Process.txt

Filesize
4KB

MD5
e282274bd22c127e1e69df9c50ae3159

SHA1
62162446b60d0d68e93a4e9f447f6844ddd62486

SHA256
889ee0b39a2cba742bcae35145658af6029c2ad0dba85e25e2bd2051ae6b0c44

SHA512
76fccbefcc455de2df58cfd943e764f94f30349889b3dfe606dc2610920d6339826d995b3dbcaaac3fa43260a0bd58c3cd67bccd61ad05360441e270b91645c2

Download Submit
C:\Users\Admin\AppData\Local\cb6eff299dafa39464b45352633eb6ca\msgid.dat

Filesize
2B

MD5
d2ddea18f00665ce8623e36bd4e3c7c5

SHA1
35e995c107a71caeb833bb3b79f9f54781b33fa1

SHA256
96061e92f58e4bdcdee73df36183fe3ac64747c81c26f6c83aada8d2aabb1864

SHA512
9659dbdf1d162306ad8ba15f2454b718b566a6543d3df1358a7ac6680a5a58d693b5288b012dbd16d3c28da60b2ff1a770c5a8484a8478c0902c6b8073eaf24c

Download Submit
memory/3520-146-0x00000000751B0000-0x0000000075960000-memory.dmp

Filesize
7.7MB

Download
memory/3520-3-0x0000000005550000-0x00000000055B6000-memory.dmp

Filesize
408KB

Download
memory/3520-120-0x00000000751BE000-0x00000000751BF000-memory.dmp

Filesize
4KB

Download
memory/3520-2-0x00000000751B0000-0x0000000075960000-memory.dmp

Filesize
7.7MB

Download
memory/3520-0-0x00000000751BE000-0x00000000751BF000-memory.dmp

Filesize
4KB

Download
memory/3520-151-0x00000000751B0000-0x0000000075960000-memory.dmp

Filesize
7.7MB

Download
memory/3520-152-0x0000000006070000-0x0000000006102000-memory.dmp

Filesize
584KB

Download
memory/3520-153-0x00000000066C0000-0x0000000006C64000-memory.dmp

Filesize
5.6MB

Download
memory/3520-157-0x0000000006190000-0x000000000619A000-memory.dmp

Filesize
40KB

Download
memory/3520-1-0x0000000000B40000-0x0000000000B70000-memory.dmp

Filesize
192KB

Download
memory/3520-163-0x0000000006380000-0x0000000006392000-memory.dmp

Filesize
72KB

Download
memory/3520-188-0x00000000751B0000-0x0000000075960000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads