asyncrat | 09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669

Analysis

max time kernel
145s
max time network
119s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
02-07-2024 01:03

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General

Target

09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exe
Size

514KB
MD5

395c4070233d059b2f1661fbdc6af0b4
SHA1

c4e8741e9c21d4a5d9a45138232da82c751cc390
SHA256

09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669
SHA512

b3214c512ad6cde7f64ec1d9e8fab416917a248e77268f8516505d8f319168445e184c0182679ed8fdbc967fb6cb94b4e4fc4e2a760bc0f50aa154da81d6b3b9
SSDEEP

12288:IOK+cDtCaKVvTkLsDSdWg51DKWpw06aioXy3FMk:xGAZVL1D5W2Hckmk

Score

10^/10

asyncrat stormkitty default persistence privilege_escalation rat 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/bot7322917184:AAEZSbuOE5wiEr26jHjFYvUlp0J9RAox2lU/sendMessage?chat_id=5635047295

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 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2480-8-0x0000000000400000-0x0000000000432000-memory.dmp	family_stormkitty
behavioral1/memory/2480-9-0x0000000000400000-0x0000000000432000-memory.dmp	family_stormkitty
behavioral1/memory/2480-12-0x0000000000400000-0x0000000000432000-memory.dmp	family_stormkitty
behavioral1/memory/2480-16-0x0000000000400000-0x0000000000432000-memory.dmp	family_stormkitty
behavioral1/memory/2480-14-0x0000000000400000-0x0000000000432000-memory.dmp	family_stormkitty

Drops desktop.ini file(s) 5 IoCs

Processes:

MSBuild.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Local\ccac48237312720d29afef297021ea7e\Admin@BISMIZHX_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	MSBuild.exe
File opened for modification	C:\Users\Admin\AppData\Local\ccac48237312720d29afef297021ea7e\Admin@BISMIZHX_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	MSBuild.exe
File created	C:\Users\Admin\AppData\Local\ccac48237312720d29afef297021ea7e\Admin@BISMIZHX_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	MSBuild.exe
File created	C:\Users\Admin\AppData\Local\ccac48237312720d29afef297021ea7e\Admin@BISMIZHX_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	MSBuild.exe
File created	C:\Users\Admin\AppData\Local\ccac48237312720d29afef297021ea7e\Admin@BISMIZHX_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	MSBuild.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.

Processes:

flow ioc

6 icanhazip.com
Looks up geolocation information via web service
Uses a legitimate geolocation service to find the infected system's geolocation info.
Suspicious use of SetThreadContext 1 IoCs

Processes:

09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exe

description pid process target process

PID 2924 set thread context of 2480 2924 09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exe MSBuild.exe

flow	ioc
6	icanhazip.com

description	pid	process	target process
PID 2924 set thread context of 2480	2924	09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exe	MSBuild.exe

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

Processes:

netsh.exenetsh.exe

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

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

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	MSBuild.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exeMSBuild.exe

pid	process
2924	09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exe
2924	09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exe
2480	MSBuild.exe
2480	MSBuild.exe
2480	MSBuild.exe
2480	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 2924 09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exe
Token: SeDebugPrivilege 2480 MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	2924	09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exe
Token: SeDebugPrivilege	2480	MSBuild.exe

Suspicious use of WriteProcessMemory 61 IoCs

Processes:

09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exeMSBuild.execmd.execmd.exe

description	pid	process	target process
PID 2924 wrote to memory of 2480	2924	09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exe	MSBuild.exe
PID 2924 wrote to memory of 2480	2924	09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exe	MSBuild.exe
PID 2924 wrote to memory of 2480	2924	09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exe	MSBuild.exe
PID 2924 wrote to memory of 2480	2924	09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exe	MSBuild.exe
PID 2924 wrote to memory of 2480	2924	09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exe	MSBuild.exe
PID 2924 wrote to memory of 2480	2924	09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exe	MSBuild.exe
PID 2924 wrote to memory of 2480	2924	09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exe	MSBuild.exe
PID 2924 wrote to memory of 2480	2924	09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exe	MSBuild.exe
PID 2924 wrote to memory of 2480	2924	09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exe	MSBuild.exe
PID 2924 wrote to memory of 2480	2924	09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exe	MSBuild.exe
PID 2924 wrote to memory of 2480	2924	09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exe	MSBuild.exe
PID 2924 wrote to memory of 2480	2924	09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exe	MSBuild.exe
PID 2480 wrote to memory of 2696	2480	MSBuild.exe	cmd.exe
PID 2480 wrote to memory of 2696	2480	MSBuild.exe	cmd.exe
PID 2480 wrote to memory of 2696	2480	MSBuild.exe	cmd.exe
PID 2480 wrote to memory of 2696	2480	MSBuild.exe	cmd.exe
PID 2480 wrote to memory of 2696	2480	MSBuild.exe	cmd.exe
PID 2480 wrote to memory of 2696	2480	MSBuild.exe	cmd.exe
PID 2480 wrote to memory of 2696	2480	MSBuild.exe	cmd.exe
PID 2696 wrote to memory of 2572	2696	cmd.exe	chcp.com
PID 2696 wrote to memory of 2572	2696	cmd.exe	chcp.com
PID 2696 wrote to memory of 2572	2696	cmd.exe	chcp.com
PID 2696 wrote to memory of 2572	2696	cmd.exe	chcp.com
PID 2696 wrote to memory of 2572	2696	cmd.exe	chcp.com
PID 2696 wrote to memory of 2572	2696	cmd.exe	chcp.com
PID 2696 wrote to memory of 2572	2696	cmd.exe	chcp.com
PID 2696 wrote to memory of 2564	2696	cmd.exe	netsh.exe
PID 2696 wrote to memory of 2564	2696	cmd.exe	netsh.exe
PID 2696 wrote to memory of 2564	2696	cmd.exe	netsh.exe
PID 2696 wrote to memory of 2564	2696	cmd.exe	netsh.exe
PID 2696 wrote to memory of 2564	2696	cmd.exe	netsh.exe
PID 2696 wrote to memory of 2564	2696	cmd.exe	netsh.exe
PID 2696 wrote to memory of 2564	2696	cmd.exe	netsh.exe
PID 2696 wrote to memory of 2700	2696	cmd.exe	findstr.exe
PID 2696 wrote to memory of 2700	2696	cmd.exe	findstr.exe
PID 2696 wrote to memory of 2700	2696	cmd.exe	findstr.exe
PID 2696 wrote to memory of 2700	2696	cmd.exe	findstr.exe
PID 2696 wrote to memory of 2700	2696	cmd.exe	findstr.exe
PID 2696 wrote to memory of 2700	2696	cmd.exe	findstr.exe
PID 2696 wrote to memory of 2700	2696	cmd.exe	findstr.exe
PID 2480 wrote to memory of 1028	2480	MSBuild.exe	cmd.exe
PID 2480 wrote to memory of 1028	2480	MSBuild.exe	cmd.exe
PID 2480 wrote to memory of 1028	2480	MSBuild.exe	cmd.exe
PID 2480 wrote to memory of 1028	2480	MSBuild.exe	cmd.exe
PID 2480 wrote to memory of 1028	2480	MSBuild.exe	cmd.exe
PID 2480 wrote to memory of 1028	2480	MSBuild.exe	cmd.exe
PID 2480 wrote to memory of 1028	2480	MSBuild.exe	cmd.exe
PID 1028 wrote to memory of 2164	1028	cmd.exe	chcp.com
PID 1028 wrote to memory of 2164	1028	cmd.exe	chcp.com
PID 1028 wrote to memory of 2164	1028	cmd.exe	chcp.com
PID 1028 wrote to memory of 2164	1028	cmd.exe	chcp.com
PID 1028 wrote to memory of 2164	1028	cmd.exe	chcp.com
PID 1028 wrote to memory of 2164	1028	cmd.exe	chcp.com
PID 1028 wrote to memory of 2164	1028	cmd.exe	chcp.com
PID 1028 wrote to memory of 1732	1028	cmd.exe	netsh.exe
PID 1028 wrote to memory of 1732	1028	cmd.exe	netsh.exe
PID 1028 wrote to memory of 1732	1028	cmd.exe	netsh.exe
PID 1028 wrote to memory of 1732	1028	cmd.exe	netsh.exe
PID 1028 wrote to memory of 1732	1028	cmd.exe	netsh.exe
PID 1028 wrote to memory of 1732	1028	cmd.exe	netsh.exe
PID 1028 wrote to memory of 1732	1028	cmd.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exe
"C:\Users\Admin\AppData\Local\Temp\09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2924

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
2⤵
- Drops desktop.ini file(s)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2480

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
3⤵
- Suspicious use of WriteProcessMemory
PID:2696

C:\Windows\SysWOW64\chcp.com
chcp 65001
4⤵
PID:2572

C:\Windows\SysWOW64\netsh.exe
netsh wlan show profile
4⤵
- Event Triggered Execution: Netsh Helper DLL
PID:2564

C:\Windows\SysWOW64\findstr.exe
findstr All
4⤵
PID:2700

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
3⤵
- Suspicious use of WriteProcessMemory
PID:1028

C:\Windows\SysWOW64\chcp.com
chcp 65001
4⤵
PID:2164

C:\Windows\SysWOW64\netsh.exe
netsh wlan show networks mode=bssid
4⤵
- Event Triggered Execution: Netsh Helper DLL
PID:1732

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\e969a13c26976db0d9f61051b972460e\msgid.dat
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2480-12-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2480-10-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2480-92-0x0000000000BE0000-0x0000000000C20000-memory.dmp

Filesize
256KB

Download
memory/2480-5-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2480-6-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2480-8-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2480-9-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2480-83-0x0000000000BE0000-0x0000000000C20000-memory.dmp

Filesize
256KB

Download
memory/2480-14-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2480-16-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2924-0-0x0000000000D50000-0x0000000000DD4000-memory.dmp

Filesize
528KB

Download
memory/2924-2-0x0000000000CE0000-0x0000000000CFA000-memory.dmp

Filesize
104KB

Download
memory/2924-1-0x00000000004E0000-0x0000000000524000-memory.dmp

Filesize
272KB

Download
memory/2924-3-0x0000000000D40000-0x0000000000D46000-memory.dmp

Filesize
24KB

Download