Malware Analysis Report

2024-11-15 06:03

Sample ID 240929-ln7cqa1gld
Target RG_Catalyst.zip
SHA256 ea2bd6c64386d2979f46d49e37b7cbfa9efdef40efeb61709bda7bf9435c3f63
Tags
rhadamanthys discovery evasion execution stealer themida 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

ea2bd6c64386d2979f46d49e37b7cbfa9efdef40efeb61709bda7bf9435c3f63

Threat Level: Known bad

The file RG_Catalyst.zip was found to be: Known bad.

Malicious Activity Summary

rhadamanthys discovery evasion execution stealer themida trojan

Rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Identifies VirtualBox via ACPI registry values (likely anti-VM)

Command and Scripting Interpreter: PowerShell

Executes dropped EXE

Checks BIOS information in registry

Themida packer

Checks whether UAC is enabled

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-29 09:42

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-29 09:41

Reported

2024-09-29 09:46

Platform

win7-20240729-en

Max time kernel

117s

Max time network

124s

Command Line

C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\RG_Catalyst.zip

Signatures

N/A

Processes

C:\Windows\Explorer.exe

C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\RG_Catalyst.zip

C:\Windows\explorer.exe

"C:\Windows\explorer.exe"

C:\Windows\explorer.exe

"C:\Windows\explorer.exe"

C:\Users\Admin\Desktop\RG_Catalyst\launcher.exe

"C:\Users\Admin\Desktop\RG_Catalyst\launcher.exe"

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-29 09:41

Reported

2024-09-29 09:46

Platform

win10v2004-20240802-en

Max time kernel

163s

Max time network

166s

Command Line

sihost.exe

Signatures

Rhadamanthys

stealer rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 3796 created 2656 N/A C:\Users\Admin\AppData\Local\Temp\4JPMaJa6z0.exe C:\Windows\system32\sihost.exe
PID 2056 created 2656 N/A C:\Users\Admin\AppData\Local\Temp\k1tlIpC7Am.exe C:\Windows\system32\sihost.exe

Identifies VirtualBox via ACPI registry values (likely anti-VM)

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\4JPMaJa6z0.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\k1tlIpC7Am.exe N/A

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

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\4JPMaJa6z0.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\4JPMaJa6z0.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\k1tlIpC7Am.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\k1tlIpC7Am.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4JPMaJa6z0.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\k1tlIpC7Am.exe N/A

Themida packer

themida
Description Indicator Process Target
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Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\4JPMaJa6z0.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\k1tlIpC7Am.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\k1tlIpC7Am.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\openwith.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\4JPMaJa6z0.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\openwith.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
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3428 wrote to memory of 4948 N/A C:\Users\Admin\Desktop\RG_Catalyst\launcher.exe C:\Windows\system32\cmd.exe
PID 3428 wrote to memory of 4948 N/A C:\Users\Admin\Desktop\RG_Catalyst\launcher.exe C:\Windows\system32\cmd.exe
PID 4948 wrote to memory of 4344 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4948 wrote to memory of 4344 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3428 wrote to memory of 3196 N/A C:\Users\Admin\Desktop\RG_Catalyst\launcher.exe C:\Windows\system32\cmd.exe
PID 3428 wrote to memory of 3196 N/A C:\Users\Admin\Desktop\RG_Catalyst\launcher.exe C:\Windows\system32\cmd.exe
PID 3196 wrote to memory of 3796 N/A C:\Windows\system32\cmd.exe C:\Users\Admin\AppData\Local\Temp\4JPMaJa6z0.exe
PID 3196 wrote to memory of 3796 N/A C:\Windows\system32\cmd.exe C:\Users\Admin\AppData\Local\Temp\4JPMaJa6z0.exe
PID 3196 wrote to memory of 3796 N/A C:\Windows\system32\cmd.exe C:\Users\Admin\AppData\Local\Temp\4JPMaJa6z0.exe
PID 3796 wrote to memory of 1784 N/A C:\Users\Admin\AppData\Local\Temp\4JPMaJa6z0.exe C:\Windows\SysWOW64\openwith.exe
PID 3796 wrote to memory of 1784 N/A C:\Users\Admin\AppData\Local\Temp\4JPMaJa6z0.exe C:\Windows\SysWOW64\openwith.exe
PID 3796 wrote to memory of 1784 N/A C:\Users\Admin\AppData\Local\Temp\4JPMaJa6z0.exe C:\Windows\SysWOW64\openwith.exe
PID 3796 wrote to memory of 1784 N/A C:\Users\Admin\AppData\Local\Temp\4JPMaJa6z0.exe C:\Windows\SysWOW64\openwith.exe
PID 3796 wrote to memory of 1784 N/A C:\Users\Admin\AppData\Local\Temp\4JPMaJa6z0.exe C:\Windows\SysWOW64\openwith.exe
PID 4672 wrote to memory of 1108 N/A C:\Users\Admin\Desktop\RG_Catalyst\launcher.exe C:\Windows\system32\cmd.exe
PID 4672 wrote to memory of 1108 N/A C:\Users\Admin\Desktop\RG_Catalyst\launcher.exe C:\Windows\system32\cmd.exe
PID 1108 wrote to memory of 4112 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1108 wrote to memory of 4112 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4672 wrote to memory of 1892 N/A C:\Users\Admin\Desktop\RG_Catalyst\launcher.exe C:\Windows\system32\cmd.exe
PID 4672 wrote to memory of 1892 N/A C:\Users\Admin\Desktop\RG_Catalyst\launcher.exe C:\Windows\system32\cmd.exe
PID 1892 wrote to memory of 2056 N/A C:\Windows\system32\cmd.exe C:\Users\Admin\AppData\Local\Temp\k1tlIpC7Am.exe
PID 1892 wrote to memory of 2056 N/A C:\Windows\system32\cmd.exe C:\Users\Admin\AppData\Local\Temp\k1tlIpC7Am.exe
PID 1892 wrote to memory of 2056 N/A C:\Windows\system32\cmd.exe C:\Users\Admin\AppData\Local\Temp\k1tlIpC7Am.exe
PID 2056 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\k1tlIpC7Am.exe C:\Windows\SysWOW64\openwith.exe
PID 2056 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\k1tlIpC7Am.exe C:\Windows\SysWOW64\openwith.exe
PID 2056 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\k1tlIpC7Am.exe C:\Windows\SysWOW64\openwith.exe
PID 2056 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\k1tlIpC7Am.exe C:\Windows\SysWOW64\openwith.exe
PID 2056 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\k1tlIpC7Am.exe C:\Windows\SysWOW64\openwith.exe

Processes

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\Explorer.exe

C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\RG_Catalyst.zip

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding

C:\Users\Admin\Desktop\RG_Catalyst\launcher.exe

"C:\Users\Admin\Desktop\RG_Catalyst\launcher.exe"

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /d /s /c "powershell -Command "Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData'; Add-MpPreference -ExclusionPath 'C:\ProgramData'""

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

powershell -Command "Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData'; Add-MpPreference -ExclusionPath 'C:\ProgramData'"

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /d /s /c "C:\Users\Admin\AppData\Local\Temp\4JPMaJa6z0.exe"

C:\Users\Admin\AppData\Local\Temp\4JPMaJa6z0.exe

C:\Users\Admin\AppData\Local\Temp\4JPMaJa6z0.exe

C:\Windows\SysWOW64\openwith.exe

"C:\Windows\system32\openwith.exe"

C:\Users\Admin\Desktop\RG_Catalyst\launcher.exe

"C:\Users\Admin\Desktop\RG_Catalyst\launcher.exe"

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /d /s /c "powershell -Command "Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData'; Add-MpPreference -ExclusionPath 'C:\ProgramData'""

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

powershell -Command "Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData'; Add-MpPreference -ExclusionPath 'C:\ProgramData'"

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /d /s /c "C:\Users\Admin\AppData\Local\Temp\k1tlIpC7Am.exe"

C:\Users\Admin\AppData\Local\Temp\k1tlIpC7Am.exe

C:\Users\Admin\AppData\Local\Temp\k1tlIpC7Am.exe

C:\Windows\SysWOW64\openwith.exe

"C:\Windows\system32\openwith.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 98.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 github.com udp
GB 20.26.156.215:443 github.com tcp
US 8.8.8.8:53 objects.githubusercontent.com udp
US 185.199.109.133:443 objects.githubusercontent.com tcp
US 8.8.8.8:53 215.156.26.20.in-addr.arpa udp
US 8.8.8.8:53 133.109.199.185.in-addr.arpa udp
GB 20.26.156.215:443 github.com tcp
US 185.199.109.133:443 objects.githubusercontent.com tcp

Files

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pgtyhcmw.ffw.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/4344-10-0x00000195F5710000-0x00000195F5732000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\4JPMaJa6z0.exe

MD5 2131426d8a3c01e0073772820265b4bd
SHA1 bac33ac453609577cccd2c6b1fb4981ff634e795
SHA256 1f53511b847a01a45e3d5d48f40dce79500175275dcf9606da1ee4864099ad8a
SHA512 9a24b0a26fed3730d301a4c56412f2df7a7505184ba848b9a38f21af48fd82ed549b6d56383bf119c712b663900a006e2016e04e958e40c5f529a22fb7bfb22b

memory/3796-17-0x0000000000440000-0x00000000008D9000-memory.dmp

memory/3796-19-0x0000000000440000-0x00000000008D9000-memory.dmp

memory/3796-20-0x0000000000440000-0x00000000008D9000-memory.dmp

memory/3796-21-0x0000000000440000-0x00000000008D9000-memory.dmp

memory/3796-22-0x0000000000440000-0x00000000008D9000-memory.dmp

memory/3796-23-0x0000000003A00000-0x0000000003E00000-memory.dmp

memory/3796-24-0x0000000003A00000-0x0000000003E00000-memory.dmp

memory/3796-25-0x00007FFE91990000-0x00007FFE91B85000-memory.dmp

memory/3796-27-0x0000000074F90000-0x00000000751A5000-memory.dmp

memory/1784-28-0x0000000000D90000-0x0000000000D99000-memory.dmp

memory/3796-31-0x0000000000440000-0x00000000008D9000-memory.dmp

memory/1784-32-0x0000000002C90000-0x0000000003090000-memory.dmp

memory/1784-35-0x0000000074F90000-0x00000000751A5000-memory.dmp

memory/1784-33-0x00007FFE91990000-0x00007FFE91B85000-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 6d3e9c29fe44e90aae6ed30ccf799ca8
SHA1 c7974ef72264bbdf13a2793ccf1aed11bc565dce
SHA256 2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d
SHA512 60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

memory/2056-54-0x00000000002D0000-0x0000000000769000-memory.dmp

memory/2056-56-0x00000000002D0000-0x0000000000769000-memory.dmp

memory/2056-55-0x00000000002D0000-0x0000000000769000-memory.dmp

memory/2056-57-0x00000000002D0000-0x0000000000769000-memory.dmp

memory/2056-58-0x00000000002D0000-0x0000000000769000-memory.dmp

memory/2056-60-0x0000000003BB0000-0x0000000003FB0000-memory.dmp

memory/2056-63-0x0000000074F90000-0x00000000751A5000-memory.dmp

memory/2056-61-0x00007FFE91990000-0x00007FFE91B85000-memory.dmp

memory/2056-67-0x00000000002D0000-0x0000000000769000-memory.dmp

memory/2564-68-0x00000000029F0000-0x0000000002DF0000-memory.dmp

memory/2564-71-0x0000000074F90000-0x00000000751A5000-memory.dmp

memory/2564-69-0x00007FFE91990000-0x00007FFE91B85000-memory.dmp