Malware Analysis Report

2025-08-05 12:32

Sample ID 230502-bgezsaba8w
Target 25d7952b3e8c9f0872ecf4f099cea1a2.bin
SHA256 7fb468df5b46d1eb0f26e737c515a5a10794b84c9193628efb71c9c32fe8edc1
Tags
rat default asyncrat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

7fb468df5b46d1eb0f26e737c515a5a10794b84c9193628efb71c9c32fe8edc1

Threat Level: Known bad

The file 25d7952b3e8c9f0872ecf4f099cea1a2.bin was found to be: Known bad.

Malicious Activity Summary

rat default asyncrat

AsyncRat

Asyncrat family

Async RAT payload

Async RAT payload

Checks computer location settings

Executes dropped EXE

Unsigned PE

Enumerates physical storage devices

Uses Task Scheduler COM API

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Delays execution with timeout.exe

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-05-02 01:06

Signatures

Async RAT payload

rat
Description Indicator Process Target
N/A N/A N/A N/A

Asyncrat family

asyncrat

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-05-02 01:06

Reported

2023-05-02 01:09

Platform

win7-20230220-en

Max time kernel

149s

Max time network

34s

Command Line

"C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe"

Signatures

AsyncRat

rat asyncrat

Async RAT payload

rat
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Runtime Broker.exe N/A

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\system32\schtasks.exe N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\timeout.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\Runtime Broker.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1772 wrote to memory of 1524 N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe C:\Windows\System32\cmd.exe
PID 1772 wrote to memory of 1524 N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe C:\Windows\System32\cmd.exe
PID 1772 wrote to memory of 1524 N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe C:\Windows\System32\cmd.exe
PID 1772 wrote to memory of 776 N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe C:\Windows\system32\cmd.exe
PID 1772 wrote to memory of 776 N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe C:\Windows\system32\cmd.exe
PID 1772 wrote to memory of 776 N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe C:\Windows\system32\cmd.exe
PID 1524 wrote to memory of 696 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\schtasks.exe
PID 1524 wrote to memory of 696 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\schtasks.exe
PID 1524 wrote to memory of 696 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\schtasks.exe
PID 776 wrote to memory of 1300 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\timeout.exe
PID 776 wrote to memory of 1300 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\timeout.exe
PID 776 wrote to memory of 1300 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\timeout.exe
PID 776 wrote to memory of 1528 N/A C:\Windows\system32\cmd.exe C:\Users\Admin\AppData\Roaming\Runtime Broker.exe
PID 776 wrote to memory of 1528 N/A C:\Windows\system32\cmd.exe C:\Users\Admin\AppData\Roaming\Runtime Broker.exe
PID 776 wrote to memory of 1528 N/A C:\Windows\system32\cmd.exe C:\Users\Admin\AppData\Roaming\Runtime Broker.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe

"C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Runtime Broker" /tr '"C:\Users\Admin\AppData\Roaming\Runtime Broker.exe"' & exit

C:\Windows\system32\cmd.exe

cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp7E.tmp.bat""

C:\Windows\system32\schtasks.exe

schtasks /create /f /sc onlogon /rl highest /tn "Runtime Broker" /tr '"C:\Users\Admin\AppData\Roaming\Runtime Broker.exe"'

C:\Windows\system32\timeout.exe

timeout 3

C:\Users\Admin\AppData\Roaming\Runtime Broker.exe

"C:\Users\Admin\AppData\Roaming\Runtime Broker.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 dom45x.duckdns.org udp

Files

memory/1772-54-0x0000000001250000-0x0000000001262000-memory.dmp

memory/1772-55-0x000000001B060000-0x000000001B0E0000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp7E.tmp.bat

MD5 180e332a9b854d3e85c7906df2f970b2
SHA1 e5e3541088f64c160267cb7f64cd6cbab49b6de6
SHA256 6b0d56e8dcb82a94a3ed6000b1b8564058c18c41618189b24eae68ac025a232f
SHA512 71df612bb291a972babf0c4317c6bc8949e8fc27a401aed343fe571d13bc0a4c366e6eb503abe82c4b7446861247aa5ad2b91c49e394be8d1774db57b9cbfa9b

C:\Users\Admin\AppData\Local\Temp\tmp7E.tmp.bat

MD5 180e332a9b854d3e85c7906df2f970b2
SHA1 e5e3541088f64c160267cb7f64cd6cbab49b6de6
SHA256 6b0d56e8dcb82a94a3ed6000b1b8564058c18c41618189b24eae68ac025a232f
SHA512 71df612bb291a972babf0c4317c6bc8949e8fc27a401aed343fe571d13bc0a4c366e6eb503abe82c4b7446861247aa5ad2b91c49e394be8d1774db57b9cbfa9b

C:\Users\Admin\AppData\Roaming\Runtime Broker.exe

MD5 25d7952b3e8c9f0872ecf4f099cea1a2
SHA1 976e307d3fc015452e70acd29ebddef0d8823fac
SHA256 7fb468df5b46d1eb0f26e737c515a5a10794b84c9193628efb71c9c32fe8edc1
SHA512 f81102833efd450be231d238f3065cf3d5cb9ae6c60f0a4e6b057ffd4c78a2767b0fd8aff54e0bb08ebdf5b5da293f622e68c4874776f0fa25adfd639ca4f3eb

C:\Users\Admin\AppData\Roaming\Runtime Broker.exe

MD5 25d7952b3e8c9f0872ecf4f099cea1a2
SHA1 976e307d3fc015452e70acd29ebddef0d8823fac
SHA256 7fb468df5b46d1eb0f26e737c515a5a10794b84c9193628efb71c9c32fe8edc1
SHA512 f81102833efd450be231d238f3065cf3d5cb9ae6c60f0a4e6b057ffd4c78a2767b0fd8aff54e0bb08ebdf5b5da293f622e68c4874776f0fa25adfd639ca4f3eb

memory/1528-68-0x0000000000CF0000-0x0000000000D02000-memory.dmp

memory/1528-69-0x000000001B300000-0x000000001B380000-memory.dmp

memory/1528-70-0x000000001B300000-0x000000001B380000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-05-02 01:06

Reported

2023-05-02 01:09

Platform

win10v2004-20230220-en

Max time kernel

151s

Max time network

159s

Command Line

"C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe"

Signatures

AsyncRat

rat asyncrat

Async RAT payload

rat
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Runtime Broker.exe N/A

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\system32\schtasks.exe N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\timeout.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\Runtime Broker.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe

"C:\Users\Admin\AppData\Local\Temp\25d7952b3e8c9f0872ecf4f099cea1a2.exe"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Runtime Broker" /tr '"C:\Users\Admin\AppData\Roaming\Runtime Broker.exe"' & exit

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9E48.tmp.bat""

C:\Windows\system32\timeout.exe

timeout 3

C:\Windows\system32\schtasks.exe

schtasks /create /f /sc onlogon /rl highest /tn "Runtime Broker" /tr '"C:\Users\Admin\AppData\Roaming\Runtime Broker.exe"'

C:\Users\Admin\AppData\Roaming\Runtime Broker.exe

"C:\Users\Admin\AppData\Roaming\Runtime Broker.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 93.184.220.29:80 tcp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 40.125.122.151:443 tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 dom45x.duckdns.org udp
NL 20.50.201.195:443 tcp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 dom45x.duckdns.org udp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 131.253.33.203:80 tcp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 8.8.8.8:53 45.8.109.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 8.8.8.8:53 dom45x.duckdns.org udp
US 8.8.8.8:53 dom45x.duckdns.org udp

Files

memory/4584-133-0x00000000001D0000-0x00000000001E2000-memory.dmp

memory/4584-134-0x000000001AE70000-0x000000001AE80000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp9E48.tmp.bat

MD5 0a61c60c5d21e9fec07bff93a322200f
SHA1 8e48a2f8f59ea183da6581e18b2715d0a7d4b9cf
SHA256 3dfc56440f0409f9fe2c4752ca80efba1144b5d2da80b02e1c74f181e8ad654d
SHA512 40e6b76589d2cd23817bc1493397c72edfb1846fa64725637ddd1c828448eda22ff89628091f1d01b7af6a3858815abf91f5994f50ff4893cf355f7a8cc57be4

C:\Users\Admin\AppData\Roaming\Runtime Broker.exe

MD5 25d7952b3e8c9f0872ecf4f099cea1a2
SHA1 976e307d3fc015452e70acd29ebddef0d8823fac
SHA256 7fb468df5b46d1eb0f26e737c515a5a10794b84c9193628efb71c9c32fe8edc1
SHA512 f81102833efd450be231d238f3065cf3d5cb9ae6c60f0a4e6b057ffd4c78a2767b0fd8aff54e0bb08ebdf5b5da293f622e68c4874776f0fa25adfd639ca4f3eb

C:\Users\Admin\AppData\Roaming\Runtime Broker.exe

MD5 25d7952b3e8c9f0872ecf4f099cea1a2
SHA1 976e307d3fc015452e70acd29ebddef0d8823fac
SHA256 7fb468df5b46d1eb0f26e737c515a5a10794b84c9193628efb71c9c32fe8edc1
SHA512 f81102833efd450be231d238f3065cf3d5cb9ae6c60f0a4e6b057ffd4c78a2767b0fd8aff54e0bb08ebdf5b5da293f622e68c4874776f0fa25adfd639ca4f3eb

memory/4052-143-0x000000001B9E0000-0x000000001B9F0000-memory.dmp

memory/4052-144-0x000000001B9E0000-0x000000001B9F0000-memory.dmp