Malware Analysis Report

2024-12-07 15:27

Sample ID 241113-x9eelsxmes
Target a19db1e020b26580eddcf1a63c27c0ee935df2117b23ef941366cf9e42db7a7e
SHA256 a19db1e020b26580eddcf1a63c27c0ee935df2117b23ef941366cf9e42db7a7e
Tags
discovery execution
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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
7/10

SHA256

a19db1e020b26580eddcf1a63c27c0ee935df2117b23ef941366cf9e42db7a7e

Threat Level: Shows suspicious behavior

The file a19db1e020b26580eddcf1a63c27c0ee935df2117b23ef941366cf9e42db7a7e was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery execution

Drops startup file

Unsigned PE

Command and Scripting Interpreter: PowerShell

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-13 19:32

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-13 19:32

Reported

2024-11-13 19:35

Platform

win7-20240903-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a19db1e020b26580eddcf1a63c27c0ee935df2117b23ef941366cf9e42db7a7e.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a19db1e020b26580eddcf1a63c27c0ee935df2117b23ef941366cf9e42db7a7e.exe

"C:\Users\Admin\AppData\Local\Temp\a19db1e020b26580eddcf1a63c27c0ee935df2117b23ef941366cf9e42db7a7e.exe"

Network

N/A

Files

memory/2920-0-0x00000000008B0000-0x0000000000A7D000-memory.dmp

memory/2920-1-0x00000000021B0000-0x000000000249C000-memory.dmp

memory/2920-2-0x0000000000400000-0x0000000000738000-memory.dmp

memory/2920-3-0x0000000000400000-0x0000000000738000-memory.dmp

memory/2920-4-0x00000000021B0000-0x000000000249C000-memory.dmp

memory/2920-5-0x00000000008B0000-0x0000000000A7D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-13 19:32

Reported

2024-11-13 19:35

Platform

win10v2004-20241007-en

Max time kernel

140s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a19db1e020b26580eddcf1a63c27c0ee935df2117b23ef941366cf9e42db7a7e.exe"

Signatures

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Nexus.lnk C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\a19db1e020b26580eddcf1a63c27c0ee935df2117b23ef941366cf9e42db7a7e.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a19db1e020b26580eddcf1a63c27c0ee935df2117b23ef941366cf9e42db7a7e.exe

"C:\Users\Admin\AppData\Local\Temp\a19db1e020b26580eddcf1a63c27c0ee935df2117b23ef941366cf9e42db7a7e.exe"

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

powershell -Command "$ws = New-Object -ComObject WScript.Shell; $s = $ws.CreateShortcut('C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Nexus.lnk'); $s.TargetPath = 'C:\Users\Admin\AppData\Local\Temp\a19db1e020b26580eddcf1a63c27c0ee935df2117b23ef941366cf9e42db7a7e.exe'; $s.Save()"

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
CH 185.196.10.218:9889 tcp
US 8.8.8.8:53 218.10.196.185.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/2088-0-0x0000000000A70000-0x0000000000C3D000-memory.dmp

memory/2088-1-0x00000000025E0000-0x00000000028CC000-memory.dmp

memory/2088-2-0x0000000000400000-0x0000000000738000-memory.dmp

memory/3616-3-0x00000000743DE000-0x00000000743DF000-memory.dmp

memory/3616-4-0x00000000029E0000-0x0000000002A16000-memory.dmp

memory/3616-5-0x00000000743D0000-0x0000000074B80000-memory.dmp

memory/3616-6-0x0000000005270000-0x0000000005898000-memory.dmp

memory/3616-7-0x0000000005010000-0x0000000005032000-memory.dmp

memory/3616-8-0x0000000005910000-0x0000000005976000-memory.dmp

memory/3616-9-0x0000000005980000-0x00000000059E6000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dplaqzxt.ozn.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/3616-19-0x00000000059F0000-0x0000000005D44000-memory.dmp

memory/3616-20-0x0000000005FC0000-0x0000000005FDE000-memory.dmp

memory/3616-21-0x0000000005FE0000-0x000000000602C000-memory.dmp

memory/3616-22-0x0000000007620000-0x0000000007C9A000-memory.dmp

memory/3616-23-0x00000000064C0000-0x00000000064DA000-memory.dmp

memory/3616-27-0x00000000743D0000-0x0000000074B80000-memory.dmp

memory/2088-28-0x0000000000A70000-0x0000000000C3D000-memory.dmp

memory/2088-29-0x00000000025E0000-0x00000000028CC000-memory.dmp

memory/2088-30-0x0000000000400000-0x0000000000738000-memory.dmp

memory/2088-33-0x0000000000400000-0x0000000000738000-memory.dmp

memory/2088-35-0x0000000000400000-0x0000000000738000-memory.dmp

memory/2088-37-0x0000000000400000-0x0000000000738000-memory.dmp

memory/2088-39-0x0000000000400000-0x0000000000738000-memory.dmp

memory/2088-42-0x0000000000400000-0x0000000000738000-memory.dmp

memory/2088-43-0x0000000000400000-0x0000000000738000-memory.dmp