Malware Analysis Report

2024-10-19 06:56

Sample ID 240627-vxh6xs1gld
Target BYBBLJDYNKYQRCIW.ps1
SHA256 1c8e29dbcd8795f22f73483b6e20929e0025fd113cd9b7b760aaf5aec3b5b9ee
Tags
asyncrat newjop execution rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

1c8e29dbcd8795f22f73483b6e20929e0025fd113cd9b7b760aaf5aec3b5b9ee

Threat Level: Known bad

The file BYBBLJDYNKYQRCIW.ps1 was found to be: Known bad.

Malicious Activity Summary

asyncrat newjop execution rat

AsyncRat

Suspicious use of SetThreadContext

Command and Scripting Interpreter: PowerShell

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-27 17:22

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-27 17:22

Reported

2024-06-27 17:24

Platform

win10v2004-20240611-en

Max time kernel

129s

Max time network

153s

Command Line

powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\BYBBLJDYNKYQRCIW.ps1

Signatures

AsyncRat

rat asyncrat

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1972 set thread context of 3220 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Processes

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\BYBBLJDYNKYQRCIW.ps1

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.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 --field-trial-handle=4248,i,17325488789339133686,9539570259395798500,262144 --variations-seed-version --mojo-platform-channel-handle=3760 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 backwork07.ddns.net udp
US 172.93.111.165:6666 backwork07.ddns.net tcp
US 8.8.8.8:53 165.111.93.172.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 172.93.111.165:6666 backwork07.ddns.net tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

memory/1972-0-0x00007FFFFEA03000-0x00007FFFFEA05000-memory.dmp

memory/1972-1-0x0000021BC3D10000-0x0000021BC3D32000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uqbr4enq.mid.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/1972-11-0x00007FFFFEA00000-0x00007FFFFF4C1000-memory.dmp

memory/1972-12-0x00007FFFFEA00000-0x00007FFFFF4C1000-memory.dmp

memory/1972-13-0x0000021BDC220000-0x0000021BDC23C000-memory.dmp

memory/3220-14-0x0000000000400000-0x0000000000416000-memory.dmp

memory/1972-17-0x00007FFFFEA00000-0x00007FFFFF4C1000-memory.dmp

memory/1972-18-0x00007FFFFEA00000-0x00007FFFFF4C1000-memory.dmp

memory/3220-19-0x00000000745FE000-0x00000000745FF000-memory.dmp

memory/3220-20-0x00000000745F0000-0x0000000074DA0000-memory.dmp

memory/3220-21-0x0000000005F50000-0x00000000064F4000-memory.dmp

memory/3220-22-0x0000000005B40000-0x0000000005BD2000-memory.dmp

memory/3220-23-0x0000000005AF0000-0x0000000005AFA000-memory.dmp

memory/3220-26-0x0000000006D40000-0x0000000006DDC000-memory.dmp

memory/3220-27-0x0000000006870000-0x00000000068D6000-memory.dmp

memory/3220-28-0x00000000745FE000-0x00000000745FF000-memory.dmp

memory/3220-30-0x0000000007620000-0x000000000768C000-memory.dmp

memory/3220-29-0x00000000076A0000-0x0000000007716000-memory.dmp

memory/3220-31-0x0000000007750000-0x000000000776E000-memory.dmp

memory/3220-32-0x0000000007800000-0x000000000780A000-memory.dmp

memory/3220-33-0x00000000745F0000-0x0000000074DA0000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-27 17:22

Reported

2024-06-27 17:24

Platform

win7-20240419-en

Max time kernel

117s

Max time network

121s

Command Line

powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\BYBBLJDYNKYQRCIW.ps1

Signatures

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Processes

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\BYBBLJDYNKYQRCIW.ps1

Network

N/A

Files

memory/2188-4-0x000007FEF56CE000-0x000007FEF56CF000-memory.dmp

memory/2188-5-0x000000001B6B0000-0x000000001B992000-memory.dmp

memory/2188-7-0x000007FEF5410000-0x000007FEF5DAD000-memory.dmp

memory/2188-6-0x00000000026E0000-0x00000000026E8000-memory.dmp

memory/2188-8-0x000007FEF5410000-0x000007FEF5DAD000-memory.dmp

memory/2188-9-0x000007FEF5410000-0x000007FEF5DAD000-memory.dmp

memory/2188-10-0x000007FEF5410000-0x000007FEF5DAD000-memory.dmp

memory/2188-11-0x000007FEF5410000-0x000007FEF5DAD000-memory.dmp