Malware Analysis Report

2024-11-16 13:29

Sample ID 240621-mjg3pswcra
Target Op menu.exe
SHA256 a73192efa9195222589d66b2e229f4e5bfe6d0f5cbbc0f2a582cd74e1fcc8d78
Tags
xworm execution persistence rat trojan
score
10/10

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
10/10

SHA256

a73192efa9195222589d66b2e229f4e5bfe6d0f5cbbc0f2a582cd74e1fcc8d78

Threat Level: Known bad

The file Op menu.exe was found to be: Known bad.

Malicious Activity Summary

xworm execution persistence rat trojan

Xworm

Detect Xworm Payload

Xworm family

Command and Scripting Interpreter: PowerShell

Checks computer location settings

Drops startup file

Adds Run key to start application

Legitimate hosting services abused for malware hosting/C2

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-21 10:29

Signatures

Detect Xworm Payload

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

Xworm family

xworm

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-21 10:29

Reported

2024-06-21 10:33

Platform

win7-20240508-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Op menu.exe"

Signatures

Detect Xworm Payload

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

Xworm

trojan rat xworm

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Github Update.lnk C:\Users\Admin\AppData\Local\Temp\Op menu.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Github Update.lnk C:\Users\Admin\AppData\Local\Temp\Op menu.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\Run\Github Update = "C:\\Users\\Admin\\AppData\\Roaming\\Github Update.exe" C:\Users\Admin\AppData\Local\Temp\Op menu.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Op menu.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2860 wrote to memory of 2156 N/A C:\Users\Admin\AppData\Local\Temp\Op menu.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2860 wrote to memory of 2156 N/A C:\Users\Admin\AppData\Local\Temp\Op menu.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2860 wrote to memory of 2156 N/A C:\Users\Admin\AppData\Local\Temp\Op menu.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2860 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Local\Temp\Op menu.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2860 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Local\Temp\Op menu.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2860 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Local\Temp\Op menu.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2860 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\Op menu.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2860 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\Op menu.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2860 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\Op menu.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2860 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\Op menu.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2860 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\Op menu.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2860 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\Op menu.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

Processes

C:\Users\Admin\AppData\Local\Temp\Op menu.exe

"C:\Users\Admin\AppData\Local\Temp\Op menu.exe"

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Op menu.exe'

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Op menu.exe'

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\Github Update.exe'

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Github Update.exe'

Network

Country Destination Domain Proto
US 8.8.8.8:53 pastebin.com udp
US 8.8.8.8:53 pastebin.com udp
US 8.8.8.8:53 pastebin.com udp
US 8.8.8.8:53 pastebin.com udp
US 8.8.8.8:53 pastebin.com udp
US 8.8.8.8:53 pastebin.com udp
US 8.8.8.8:53 pastebin.com udp
US 8.8.8.8:53 pastebin.com udp
US 8.8.8.8:53 pastebin.com udp

Files

memory/2860-0-0x000007FEF5753000-0x000007FEF5754000-memory.dmp

memory/2860-1-0x0000000000E70000-0x0000000000E80000-memory.dmp

memory/2156-6-0x0000000002D00000-0x0000000002D80000-memory.dmp

memory/2156-7-0x000000001B4E0000-0x000000001B7C2000-memory.dmp

memory/2156-8-0x0000000001E80000-0x0000000001E88000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

MD5 7e5c2fe1d6727e3cb4a9a798a91c8eb5
SHA1 36314d982cbf7f29a20a2aecaec42cde96f35281
SHA256 3dd3cd9c64ffb0bd62e776946885a1d7989a906815dab98b4e6b360663fbcec1
SHA512 82344065892b7ecbbaf1f46bd5bfe26040da01a32554b4fa156a0ffa0e772a7d51c9a02f8539b863abac7e3a10995537421b57b2aa247313f8f329bbc15870af

memory/2644-14-0x000000001B780000-0x000000001BA62000-memory.dmp

memory/2644-15-0x0000000001F40000-0x0000000001F48000-memory.dmp

\??\PIPE\srvsvc

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

memory/2860-31-0x000000001B4E0000-0x000000001B560000-memory.dmp

memory/2860-32-0x000000001B4E0000-0x000000001B560000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-21 10:29

Reported

2024-06-21 10:33

Platform

win10v2004-20240508-en

Max time kernel

146s

Max time network

157s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Op menu.exe"

Signatures

Detect Xworm Payload

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

Xworm

trojan rat xworm

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\Op menu.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Github Update.lnk C:\Users\Admin\AppData\Local\Temp\Op menu.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Github Update.lnk C:\Users\Admin\AppData\Local\Temp\Op menu.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Github Update = "C:\\Users\\Admin\\AppData\\Roaming\\Github Update.exe" C:\Users\Admin\AppData\Local\Temp\Op menu.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Op menu.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Op menu.exe

"C:\Users\Admin\AppData\Local\Temp\Op menu.exe"

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Op menu.exe'

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Op menu.exe'

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\Github Update.exe'

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Github Update.exe'

Network

Country Destination Domain Proto
US 8.8.8.8:53 pastebin.com udp
US 8.8.8.8:53 pastebin.com udp
US 8.8.8.8:53 pastebin.com udp
US 8.8.8.8:53 pastebin.com udp
US 8.8.8.8:53 pastebin.com udp
US 8.8.8.8:53 pastebin.com udp
US 8.8.8.8:53 pastebin.com udp
US 8.8.8.8:53 pastebin.com udp
US 8.8.8.8:53 pastebin.com udp

Files

memory/4732-0-0x00007FF85B423000-0x00007FF85B425000-memory.dmp

memory/4732-1-0x0000000000190000-0x00000000001A0000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pjfwyjp5.yot.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/2264-7-0x000001F83D690000-0x000001F83D6B2000-memory.dmp

memory/2264-12-0x00007FF85B420000-0x00007FF85BEE1000-memory.dmp

memory/2264-13-0x00007FF85B420000-0x00007FF85BEE1000-memory.dmp

memory/2264-14-0x00007FF85B420000-0x00007FF85BEE1000-memory.dmp

memory/2264-17-0x00007FF85B420000-0x00007FF85BEE1000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

MD5 3a6bad9528f8e23fb5c77fbd81fa28e8
SHA1 f127317c3bc6407f536c0f0600dcbcf1aabfba36
SHA256 986366767de5873f1b170a63f2a33ce05132d1afd90c8f5017afbca8ef1beb05
SHA512 846002154a0ece6f3e9feda6f115d3161dc21b3789525dd62ae1d9188495171293efdbe7be4710666dd8a15e66b557315b5a02918a741ed1d5f3ff0c515b98e2

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

MD5 ec66606831e595ea115f35d1b61b7105
SHA1 f22d025450dc8dafd9b434b2eb31cb876bcb8109
SHA256 4f17fe98ecf3ea9ec9873ff0a3acdd6ca93eb17e280a01ff6cfeca4422019dec
SHA512 f2922870f0b34b5cd8a75ce3aa94362a43997a752b0e8e9001f63d650225bf15415a75ce8aa333e4d3554a52ca5d40eec7b15ce67e3ee20441cf2680de59ed5d

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

MD5 e5663972c1caaba7088048911c758bf3
SHA1 3462dea0f9c2c16a9c3afdaef8bbb1f753c1c198
SHA256 9f7f29a4696876cadca3f14d7e43f9ede0c97fd64be3f5d94bda49a91b6a419e
SHA512 ff4e72c46cf083de62baa2ce2661555dd91b5f144294015f7b262fd4500cb67fe80e1871a82da63b607e3e9cef401f4b73c587bf1134637881ecad51aad1eddc

memory/4732-56-0x00007FF85B420000-0x00007FF85BEE1000-memory.dmp

memory/4732-57-0x00007FF85B420000-0x00007FF85BEE1000-memory.dmp