asyncrat | 58b1013f511e61f2ddfb547939895ec161ab8bc03f5413529f85f1a3272d38d4

General

Target

setup.exe
Size

170KB
MD5

e29ab30e42348ecf2831928b7b95d5d8
SHA1

70ae302ae078326efbe444fd8158d2b104a06a69
SHA256

58b1013f511e61f2ddfb547939895ec161ab8bc03f5413529f85f1a3272d38d4
SHA512

34a3209dc0856ea0e4d0573eca4dd53b238ebb317f10cb84683d99c64c1264693390d42193fcbac190ce9d9e0a33c9f32de8c4a57e4d38ec267ad16ad5d3138d
SSDEEP

3072:3+STW8djpN6izj8mZw0YaeiJFqIPu/i9bVJ2cxO06+Wpz:c8XN6W8mm0YmfXPSi9bDD

Score

10^/10

asyncrat stormkitty default credential_access 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/bot5344934242:AAF3rLeFDCGd-IVKJG_PU99MSQjdKyNgeR0/sendMessage?chat_id=1619136628

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/1256-1-0x0000000000C70000-0x0000000000CA0000-memory.dmp	family_stormkitty

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
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
T1552.001

Drops desktop.ini file(s) 8 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\b03275e88dba4db2369632ed4cc6ac78\Admin@OARDHGDN_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	setup.exe
File opened for modification	C:\Users\Admin\AppData\Local\b03275e88dba4db2369632ed4cc6ac78\Admin@OARDHGDN_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	setup.exe
File created	C:\Users\Admin\AppData\Local\b03275e88dba4db2369632ed4cc6ac78\Admin@OARDHGDN_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	setup.exe
File opened for modification	C:\Users\Admin\AppData\Local\b03275e88dba4db2369632ed4cc6ac78\Admin@OARDHGDN_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	setup.exe
File created	C:\Users\Admin\AppData\Local\b03275e88dba4db2369632ed4cc6ac78\Admin@OARDHGDN_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	setup.exe
File created	C:\Users\Admin\AppData\Local\b03275e88dba4db2369632ed4cc6ac78\Admin@OARDHGDN_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	setup.exe
File created	C:\Users\Admin\AppData\Local\b03275e88dba4db2369632ed4cc6ac78\Admin@OARDHGDN_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	setup.exe
File created	C:\Users\Admin\AppData\Local\b03275e88dba4db2369632ed4cc6ac78\Admin@OARDHGDN_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	setup.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
33	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	netsh.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	setup.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

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
4388	cmd.exe
1236	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	setup.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	setup.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
1256	setup.exe
1256	setup.exe
1256	setup.exe
1256	setup.exe
1256	setup.exe
1256	setup.exe
1256	setup.exe
1256	setup.exe
1256	setup.exe
1256	setup.exe
1256	setup.exe
1256	setup.exe
1256	setup.exe
1256	setup.exe
1256	setup.exe
1256	setup.exe
1256	setup.exe
1256	setup.exe
1256	setup.exe
1256	setup.exe
1256	setup.exe
1256	setup.exe
1256	setup.exe
1256	setup.exe
1256	setup.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1256	setup.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1256 wrote to memory of 4388	1256	setup.exe	98
PID 1256 wrote to memory of 4388	1256	setup.exe	98
PID 1256 wrote to memory of 4388	1256	setup.exe	98
PID 4388 wrote to memory of 348	4388	cmd.exe	100
PID 4388 wrote to memory of 348	4388	cmd.exe	100
PID 4388 wrote to memory of 348	4388	cmd.exe	100
PID 4388 wrote to memory of 1236	4388	cmd.exe	101
PID 4388 wrote to memory of 1236	4388	cmd.exe	101
PID 4388 wrote to memory of 1236	4388	cmd.exe	101
PID 4388 wrote to memory of 2492	4388	cmd.exe	102
PID 4388 wrote to memory of 2492	4388	cmd.exe	102
PID 4388 wrote to memory of 2492	4388	cmd.exe	102
PID 1256 wrote to memory of 1480	1256	setup.exe	103
PID 1256 wrote to memory of 1480	1256	setup.exe	103
PID 1256 wrote to memory of 1480	1256	setup.exe	103
PID 1480 wrote to memory of 4492	1480	cmd.exe	105
PID 1480 wrote to memory of 4492	1480	cmd.exe	105
PID 1480 wrote to memory of 4492	1480	cmd.exe	105
PID 1480 wrote to memory of 2468	1480	cmd.exe	106
PID 1480 wrote to memory of 2468	1480	cmd.exe	106
PID 1480 wrote to memory of 2468	1480	cmd.exe	106

C:\Users\Admin\AppData\Local\Temp\setup.exe
"C:\Users\Admin\AppData\Local\Temp\setup.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:1256
- 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:4388
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:348
- - 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:1236
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2492
- 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:1480
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4492
- - 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:2468

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:1828

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\b03275e88dba4db2369632ed4cc6ac78\Admin@OARDHGDN_en-US\System\Process.txt

Filesize
4KB

MD5
b726f54be51626453caf842145320ea2

SHA1
481463ddc63b15bedd12e370123a898ec89cc063

SHA256
1439b81b6c559c844596495e905eec422d918830676c67ac429175646f18981d

SHA512
5e47645ca76a81874294897ba2509c7966d388ead1f69526939a3f6aef7ebbf1d089397980beceb15625011c238f2041fde06da7bbfe3b7acfb61cdb5dae57f5

Download Submit
C:\Users\Admin\AppData\Local\cbd9ca863d45976f91c256efaaf05745\msgid.dat

Filesize
5B

MD5
f15a80d46beb9997e63448e46ac01f0e

SHA1
b23d5095c69cdd992047aabde638497d2fbf8f6c

SHA256
e857a7139f05698ba9c2a8f41814db3e7b48609496777792c5c3aacbcdd75d9a

SHA512
a051f89a527cc67070fe42feaf724aa1d3461989330d058d937ef5310d61cfef25524ea175101845e32a4662d76e99b46200c9a203ebebf0b0fcbba7ca2e5ba2

Download Submit
memory/1256-151-0x0000000073ED0000-0x0000000074680000-memory.dmp

Filesize
7.7MB

Download
memory/1256-3-0x0000000005760000-0x00000000057C6000-memory.dmp

Filesize
408KB

Download
memory/1256-121-0x0000000073EDE000-0x0000000073EDF000-memory.dmp

Filesize
4KB

Download
memory/1256-2-0x0000000073ED0000-0x0000000074680000-memory.dmp

Filesize
7.7MB

Download
memory/1256-0-0x0000000073EDE000-0x0000000073EDF000-memory.dmp

Filesize
4KB

Download
memory/1256-154-0x0000000073ED0000-0x0000000074680000-memory.dmp

Filesize
7.7MB

Download
memory/1256-156-0x00000000061C0000-0x0000000006252000-memory.dmp

Filesize
584KB

Download
memory/1256-157-0x0000000006810000-0x0000000006DB4000-memory.dmp

Filesize
5.6MB

Download
memory/1256-161-0x00000000063E0000-0x00000000063EA000-memory.dmp

Filesize
40KB

Download
memory/1256-1-0x0000000000C70000-0x0000000000CA0000-memory.dmp

Filesize
192KB

Download
memory/1256-167-0x0000000006430000-0x0000000006442000-memory.dmp

Filesize
72KB

Download
memory/1256-190-0x0000000073ED0000-0x0000000074680000-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