Malware Analysis Report

2024-08-06 13:16

Sample ID 240614-cxpdtswbmr
Target COMPILED.zip
SHA256 0b29711ec115c27f4cd6963b9ea1e4febf15624f1c17d1c018611ee3df8c333c
Tags
rat asyncrat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

0b29711ec115c27f4cd6963b9ea1e4febf15624f1c17d1c018611ee3df8c333c

Threat Level: Known bad

The file COMPILED.zip was found to be: Known bad.

Malicious Activity Summary

rat asyncrat

Async RAT payload

Asyncrat family

AsyncRat

Program crash

Unsigned PE

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of SendNotifyMessage

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-14 02:27

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
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Analysis: behavioral1

Detonation Overview

Submitted

2024-06-14 02:27

Reported

2024-06-14 02:30

Platform

win7-20240220-en

Max time kernel

150s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\AsyncRAT\AsyncRAT.exe"

Signatures

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: GetForegroundWindowSpam

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

Suspicious use of FindShellTrayWindow

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

Suspicious use of SendNotifyMessage

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

Processes

C:\Users\Admin\AppData\Local\Temp\AsyncRAT\AsyncRAT.exe

"C:\Users\Admin\AppData\Local\Temp\AsyncRAT\AsyncRAT.exe"

C:\Windows\system32\wbem\WmiApSrv.exe

C:\Windows\system32\wbem\WmiApSrv.exe

Network

N/A

Files

memory/2932-0-0x000007FEF5E03000-0x000007FEF5E04000-memory.dmp

memory/2932-1-0x00000000001E0000-0x000000000084A000-memory.dmp

memory/2932-3-0x000000001B830000-0x000000001BA82000-memory.dmp

memory/2932-4-0x000007FEF5E00000-0x000007FEF67EC000-memory.dmp

memory/2932-5-0x000007FEF5E00000-0x000007FEF67EC000-memory.dmp

memory/2932-6-0x000007FEF5E00000-0x000007FEF67EC000-memory.dmp

memory/2932-7-0x000000001FCF0000-0x000000001FF70000-memory.dmp

memory/2932-17-0x000007FEF5E03000-0x000007FEF5E04000-memory.dmp

memory/2932-18-0x000007FEF5E00000-0x000007FEF67EC000-memory.dmp

memory/2932-19-0x000007FEF5E00000-0x000007FEF67EC000-memory.dmp

memory/2932-20-0x000007FEF5E00000-0x000007FEF67EC000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-14 02:27

Reported

2024-06-14 02:30

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\AsyncRAT\AsyncRAT.exe"

Signatures

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of FindShellTrayWindow

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

Suspicious use of SendNotifyMessage

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

Processes

C:\Users\Admin\AppData\Local\Temp\AsyncRAT\AsyncRAT.exe

"C:\Users\Admin\AppData\Local\Temp\AsyncRAT\AsyncRAT.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3792,i,14221647728265121051,6840906015709541562,262144 --variations-seed-version --mojo-platform-channel-handle=3748 /prefetch:8

C:\Windows\system32\wbem\WmiApSrv.exe

C:\Windows\system32\wbem\WmiApSrv.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp

Files

memory/924-0-0x00007FFF42C13000-0x00007FFF42C15000-memory.dmp

memory/924-1-0x000001CBB2AA0000-0x000001CBB310A000-memory.dmp

memory/924-3-0x000001CBCD720000-0x000001CBCD972000-memory.dmp

memory/924-4-0x00007FFF42C10000-0x00007FFF436D1000-memory.dmp

memory/924-5-0x00007FFF42C10000-0x00007FFF436D1000-memory.dmp

memory/924-6-0x000001CBCDB50000-0x000001CBCDB5A000-memory.dmp

memory/924-7-0x00007FFF42C10000-0x00007FFF436D1000-memory.dmp

memory/924-8-0x00007FFF42C10000-0x00007FFF436D1000-memory.dmp

memory/924-9-0x000001CBD0FA0000-0x000001CBD0FB2000-memory.dmp

memory/924-10-0x000001CBD0FC0000-0x000001CBD1240000-memory.dmp

memory/924-18-0x00007FFF42C13000-0x00007FFF42C15000-memory.dmp

memory/924-19-0x00007FFF42C10000-0x00007FFF436D1000-memory.dmp

memory/924-20-0x00007FFF42C10000-0x00007FFF436D1000-memory.dmp

memory/924-21-0x00007FFF42C10000-0x00007FFF436D1000-memory.dmp

memory/924-22-0x00007FFF42C10000-0x00007FFF436D1000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-06-14 02:27

Reported

2024-06-14 02:30

Platform

win7-20240221-en

Max time kernel

121s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\AsyncRAT\Stub\Stub.exe"

Signatures

AsyncRat

rat asyncrat

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\AsyncRAT\Stub\Stub.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2188 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\AsyncRAT\Stub\Stub.exe C:\Windows\SysWOW64\WerFault.exe
PID 2188 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\AsyncRAT\Stub\Stub.exe C:\Windows\SysWOW64\WerFault.exe
PID 2188 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\AsyncRAT\Stub\Stub.exe C:\Windows\SysWOW64\WerFault.exe
PID 2188 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\AsyncRAT\Stub\Stub.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\AsyncRAT\Stub\Stub.exe

"C:\Users\Admin\AppData\Local\Temp\AsyncRAT\Stub\Stub.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2188 -s 520

Network

N/A

Files

memory/2188-0-0x0000000074D0E000-0x0000000074D0F000-memory.dmp

memory/2188-1-0x00000000010C0000-0x00000000010D0000-memory.dmp

memory/2188-2-0x0000000074D0E000-0x0000000074D0F000-memory.dmp

Analysis: behavioral4

Detonation Overview

Submitted

2024-06-14 02:27

Reported

2024-06-14 02:30

Platform

win10v2004-20240508-en

Max time kernel

51s

Max time network

51s

Command Line

"C:\Users\Admin\AppData\Local\Temp\AsyncRAT\Stub\Stub.exe"

Signatures

AsyncRat

rat asyncrat

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\AsyncRAT\Stub\Stub.exe

Processes

C:\Users\Admin\AppData\Local\Temp\AsyncRAT\Stub\Stub.exe

"C:\Users\Admin\AppData\Local\Temp\AsyncRAT\Stub\Stub.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 5104 -ip 5104

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 5104 -s 752

Network

Files

memory/5104-0-0x0000000074BAE000-0x0000000074BAF000-memory.dmp

memory/5104-1-0x0000000000D90000-0x0000000000DA0000-memory.dmp