asyncrat | d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81

General

Target

d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
Size

234KB
MD5

4d54f37b7b9cb8f4e9a7ba334e711889
SHA1

d83e92210f74883074da45db0e50210ee0531fad
SHA256

d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81
SHA512

effbb2b5c2bd3db1da9acbb8e8b298f69cd5de86fc2906c88c17e922290a0f7b9554075fbcd35a47b8a678ef573f097cc5656ac073823b9a1b387bc795c778d5
SSDEEP

3072:A+STW8djpN6izj8mZwpuAtiIR6iYj7PcUbBuVByshwp//DrB36eKzF0y6+WpRt:18XN6W8mmpmX0UbUeshIXDIzF4

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/bot7478550442:AAFFrjVUKsvQtQXD68jNIEL-6LtQUIoajxw/sendMessage?chat_id=7253774309

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/5740-1-0x0000000000230000-0x000000000026E000-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) 9 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Local\ca4f9916ccff6866a1cd62550f2ae34f\Admin@LXCISCYC_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
File opened for modification	C:\Users\Admin\AppData\Local\ca4f9916ccff6866a1cd62550f2ae34f\Admin@LXCISCYC_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
File opened for modification	C:\Users\Admin\AppData\Local\ca4f9916ccff6866a1cd62550f2ae34f\Admin@LXCISCYC_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
File created	C:\Users\Admin\AppData\Local\ca4f9916ccff6866a1cd62550f2ae34f\Admin@LXCISCYC_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
File created	C:\Users\Admin\AppData\Local\ca4f9916ccff6866a1cd62550f2ae34f\Admin@LXCISCYC_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
File created	C:\Users\Admin\AppData\Local\ca4f9916ccff6866a1cd62550f2ae34f\Admin@LXCISCYC_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
File created	C:\Users\Admin\AppData\Local\ca4f9916ccff6866a1cd62550f2ae34f\Admin@LXCISCYC_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
File created	C:\Users\Admin\AppData\Local\ca4f9916ccff6866a1cd62550f2ae34f\Admin@LXCISCYC_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
File created	C:\Users\Admin\AppData\Local\ca4f9916ccff6866a1cd62550f2ae34f\Admin@LXCISCYC_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.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
1	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	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.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	chcp.com
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	cmd.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
3876	cmd.exe
1556	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	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 5740 wrote to memory of 3876	5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe	80
PID 5740 wrote to memory of 3876	5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe	80
PID 5740 wrote to memory of 3876	5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe	80
PID 3876 wrote to memory of 5544	3876	cmd.exe	82
PID 3876 wrote to memory of 5544	3876	cmd.exe	82
PID 3876 wrote to memory of 5544	3876	cmd.exe	82
PID 3876 wrote to memory of 1556	3876	cmd.exe	83
PID 3876 wrote to memory of 1556	3876	cmd.exe	83
PID 3876 wrote to memory of 1556	3876	cmd.exe	83
PID 3876 wrote to memory of 5180	3876	cmd.exe	84
PID 3876 wrote to memory of 5180	3876	cmd.exe	84
PID 3876 wrote to memory of 5180	3876	cmd.exe	84
PID 5740 wrote to memory of 3648	5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe	85
PID 5740 wrote to memory of 3648	5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe	85
PID 5740 wrote to memory of 3648	5740	d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe	85
PID 3648 wrote to memory of 4460	3648	cmd.exe	87
PID 3648 wrote to memory of 4460	3648	cmd.exe	87
PID 3648 wrote to memory of 4460	3648	cmd.exe	87
PID 3648 wrote to memory of 2012	3648	cmd.exe	88
PID 3648 wrote to memory of 2012	3648	cmd.exe	88
PID 3648 wrote to memory of 2012	3648	cmd.exe	88

C:\Users\Admin\AppData\Local\Temp\d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.exe
"C:\Users\Admin\AppData\Local\Temp\d51be99781d3e1a89f9b632e748e2bd2fc1a1c554f8c1d9ac0db0a9e19af4c81.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:5740
- 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:3876
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5544
- - 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:1556
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5180
- 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:3648
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4460
- - 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:2012

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\0e1bf1e733cffe7c89c7d298ab1a6cd0\msgid.dat

Filesize
3B

MD5
2f885d0fbe2e131bfc9d98363e55d1d4

SHA1
cce637a738cef6fac143931ad866d768e84f2260

SHA256
e133553ea138da0438f229cc2273c76d2e44c23a1dcc98a8e7a0d1780a3a65cc

SHA512
f609ae5f33a8e62be6ea4f926a768eddcd08d1641a4afdb35b32259802196048b00a1f925117aeae9bf2a8c217890b33bd95256488c1864e2fe3908fb832b3d0

Download Submit
C:\Users\Admin\AppData\Local\ca4f9916ccff6866a1cd62550f2ae34f\Admin@LXCISCYC_en-US\Browsers\Firefox\Bookmarks.txt

Filesize
81B

MD5
ea511fc534efd031f852fcf490b76104

SHA1
573e5fa397bc953df5422abbeb1a52bf94f7cf00

SHA256
e5fe7f327ae62df007bd1117aa7f522dbbcd371ec67953f66d786424cb1d7995

SHA512
f7d8e575a2332b0fbd491b5e092b7ed6b0942a5165557fcc5d215d873b05103aa6ba01843133871c1c7ac81b10182a15895be49885c98d1a379dd55f88004fae

Download Submit
C:\Users\Admin\AppData\Local\ca4f9916ccff6866a1cd62550f2ae34f\Admin@LXCISCYC_en-US\System\Process.txt

Filesize
4KB

MD5
903bafdabf73743284e84c6d8272534b

SHA1
83e5d36eccfb1e751c72c0a32bff8fc9c361c5c4

SHA256
7c4f83e7f357b7d6d223b9359e45c3ac231bfae718148b3f1de82536f115e205

SHA512
637558f518a7de80de6b8fa7fba8d4c68c5531382463c6efcd313ebb2287bde7315595317b779b5822d82149fde35322640f48a0414b4083391ca17afda41349

Download Submit
memory/5740-3-0x0000000004CD0000-0x0000000004D36000-memory.dmp

Filesize
408KB

Download
memory/5740-100-0x000000007427E000-0x000000007427F000-memory.dmp

Filesize
4KB

Download
memory/5740-121-0x0000000074270000-0x0000000074A21000-memory.dmp

Filesize
7.7MB

Download
memory/5740-0-0x000000007427E000-0x000000007427F000-memory.dmp

Filesize
4KB

Download
memory/5740-139-0x0000000005660000-0x00000000056F2000-memory.dmp

Filesize
584KB

Download
memory/5740-140-0x0000000074270000-0x0000000074A21000-memory.dmp

Filesize
7.7MB

Download
memory/5740-141-0x0000000005CB0000-0x0000000006256000-memory.dmp

Filesize
5.6MB

Download
memory/5740-145-0x0000000005770000-0x000000000577A000-memory.dmp

Filesize
40KB

Download
memory/5740-2-0x0000000074270000-0x0000000074A21000-memory.dmp

Filesize
7.7MB

Download
memory/5740-151-0x0000000005C90000-0x0000000005CA2000-memory.dmp

Filesize
72KB

Download
memory/5740-1-0x0000000000230000-0x000000000026E000-memory.dmp

Filesize
248KB

Download
memory/5740-175-0x0000000074270000-0x0000000074A21000-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