asyncrat | d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4

General

Target

d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
Size

185KB
MD5

87af8e8d59047e5799c4922c2cad3220
SHA1

570f9e7af5ba8058a072ab6392449d1128933771
SHA256

d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4
SHA512

3d21efb40d0133af0180fda23cacf8e7d4c13503bdff5d891a5c47026563e690a955caf2c80448bea6bb67bbecf7279fd85ab583385e65d8dcd1587d1f28f8a9
SSDEEP

3072:G+STW8djpN6izj8mZwdJqutB+YDpqIPu/i9bVK2cKcs6+WpT:b8XN6W8mmHPtppXPSi9b43

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/bot7939561809:AAHz2Vqx3T78_aqFxsPWL8XuAKKVQ7c2y3s/sendMessage?chat_id=7522999044

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/4420-1-0x0000000000C90000-0x0000000000CC4000-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\dfb609e2a7ae0b0fab490ff79f15c6f7\Admin@HGNBWBGW_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
File created	C:\Users\Admin\AppData\Local\dfb609e2a7ae0b0fab490ff79f15c6f7\Admin@HGNBWBGW_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
File opened for modification	C:\Users\Admin\AppData\Local\dfb609e2a7ae0b0fab490ff79f15c6f7\Admin@HGNBWBGW_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
File created	C:\Users\Admin\AppData\Local\dfb609e2a7ae0b0fab490ff79f15c6f7\Admin@HGNBWBGW_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
File created	C:\Users\Admin\AppData\Local\dfb609e2a7ae0b0fab490ff79f15c6f7\Admin@HGNBWBGW_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
File created	C:\Users\Admin\AppData\Local\dfb609e2a7ae0b0fab490ff79f15c6f7\Admin@HGNBWBGW_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
File created	C:\Users\Admin\AppData\Local\dfb609e2a7ae0b0fab490ff79f15c6f7\Admin@HGNBWBGW_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.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
19	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 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
Key queried	\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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.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	findstr.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	chcp.com

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
3804	cmd.exe
516	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	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4420 wrote to memory of 3804	4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe	86
PID 4420 wrote to memory of 3804	4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe	86
PID 4420 wrote to memory of 3804	4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe	86
PID 3804 wrote to memory of 3260	3804	cmd.exe	88
PID 3804 wrote to memory of 3260	3804	cmd.exe	88
PID 3804 wrote to memory of 3260	3804	cmd.exe	88
PID 3804 wrote to memory of 516	3804	cmd.exe	89
PID 3804 wrote to memory of 516	3804	cmd.exe	89
PID 3804 wrote to memory of 516	3804	cmd.exe	89
PID 3804 wrote to memory of 4140	3804	cmd.exe	90
PID 3804 wrote to memory of 4140	3804	cmd.exe	90
PID 3804 wrote to memory of 4140	3804	cmd.exe	90
PID 4420 wrote to memory of 2380	4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe	91
PID 4420 wrote to memory of 2380	4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe	91
PID 4420 wrote to memory of 2380	4420	d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe	91
PID 2380 wrote to memory of 1880	2380	cmd.exe	93
PID 2380 wrote to memory of 1880	2380	cmd.exe	93
PID 2380 wrote to memory of 1880	2380	cmd.exe	93
PID 2380 wrote to memory of 2344	2380	cmd.exe	94
PID 2380 wrote to memory of 2344	2380	cmd.exe	94
PID 2380 wrote to memory of 2344	2380	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.exe
"C:\Users\Admin\AppData\Local\Temp\d39083df8071d961f10ac9520645cad6b216d985b68e5ef71abc094dbff6cbb4N.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:4420
- 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:3804
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3260
- - 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:516
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4140
- 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:2380
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1880
- - 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:2344

Network

MITRE ATT&CK Enterprise v15

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\a4fe4682e5a95fac9abc7d78ca88df61\msgid.dat

Filesize
4B

MD5
c913303f392ffc643f7240b180602652

SHA1
655030540aed981b558d2f880b20cca6217d24e6

SHA256
4753e699ede615170936d7dd4c55a57c11c2965a2f8854e9d5738a387aa11e3a

SHA512
a5d67239eab15f51fa903435b3ecee59cdfde6a92eb1c79a294ad0b8d70eb9af1edf0950b6006f6cb41bd2ff7c8624b0b9c99bf0ce1b9393c3e6387888479c3e

Download Submit
C:\Users\Admin\AppData\Local\dfb609e2a7ae0b0fab490ff79f15c6f7\Admin@HGNBWBGW_en-US\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
C:\Users\Admin\AppData\Local\dfb609e2a7ae0b0fab490ff79f15c6f7\Admin@HGNBWBGW_en-US\System\Process.txt

Filesize
4KB

MD5
266013786482149354a146a4ce343fb4

SHA1
93007f1335d8e49af75f5a0d6f9a966327f4041d

SHA256
c25e903a0d559c0b63778b80231ddabd78d1da8284a5934550cbd4978461b258

SHA512
a3500655496b35d3055eebe8fd92bc6842ef17839205b3d7a57cc9c9485906c5879e7bda6e9c3fd8934b18f06a43eea09d6452775b2f264a6a0325102b2410b1

Download Submit
memory/4420-3-0x0000000005660000-0x00000000056C6000-memory.dmp

Filesize
408KB

Download
memory/4420-0-0x0000000074DDE000-0x0000000074DDF000-memory.dmp

Filesize
4KB

Download
memory/4420-120-0x0000000074DDE000-0x0000000074DDF000-memory.dmp

Filesize
4KB

Download
memory/4420-2-0x0000000074DD0000-0x0000000075580000-memory.dmp

Filesize
7.7MB

Download
memory/4420-143-0x0000000074DD0000-0x0000000075580000-memory.dmp

Filesize
7.7MB

Download
memory/4420-145-0x0000000074DD0000-0x0000000075580000-memory.dmp

Filesize
7.7MB

Download
memory/4420-147-0x00000000061D0000-0x0000000006262000-memory.dmp

Filesize
584KB

Download
memory/4420-148-0x0000000006820000-0x0000000006DC4000-memory.dmp

Filesize
5.6MB

Download
memory/4420-152-0x00000000062C0000-0x00000000062CA000-memory.dmp

Filesize
40KB

Download
memory/4420-1-0x0000000000C90000-0x0000000000CC4000-memory.dmp

Filesize
208KB

Download
memory/4420-158-0x00000000070D0000-0x00000000070E2000-memory.dmp

Filesize
72KB

Download
memory/4420-183-0x0000000074DD0000-0x0000000075580000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads