Malware Analysis Report

2024-11-30 02:26

Sample ID 241015-cgjhmsycjc
Target b4319210ed63ced7b431ef15430a5a98dadf9601af2ec882d00b48e1aefca6c8.exe
SHA256 b4319210ed63ced7b431ef15430a5a98dadf9601af2ec882d00b48e1aefca6c8
Tags
rhadamanthys discovery execution stealer
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

b4319210ed63ced7b431ef15430a5a98dadf9601af2ec882d00b48e1aefca6c8

Threat Level: Known bad

The file b4319210ed63ced7b431ef15430a5a98dadf9601af2ec882d00b48e1aefca6c8.exe was found to be: Known bad.

Malicious Activity Summary

rhadamanthys discovery execution stealer

Suspicious use of NtCreateUserProcessOtherParentProcess

Rhadamanthys

Command and Scripting Interpreter: PowerShell

Executes dropped EXE

Enumerates processes with tasklist

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-15 02:02

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-15 02:02

Reported

2024-10-15 02:05

Platform

win7-20240903-en

Max time kernel

119s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b4319210ed63ced7b431ef15430a5a98dadf9601af2ec882d00b48e1aefca6c8.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b4319210ed63ced7b431ef15430a5a98dadf9601af2ec882d00b48e1aefca6c8.exe

"C:\Users\Admin\AppData\Local\Temp\b4319210ed63ced7b431ef15430a5a98dadf9601af2ec882d00b48e1aefca6c8.exe"

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-15 02:02

Reported

2024-10-15 02:05

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

152s

Command Line

sihost.exe

Signatures

Rhadamanthys

stealer rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 824 created 2616 N/A C:\Users\Admin\AppData\Local\Temp\Tqs5MXM8xx.exe C:\Windows\system32\sihost.exe

Command and Scripting Interpreter: PowerShell

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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Tqs5MXM8xx.exe N/A

Enumerates processes with tasklist

discovery
Description Indicator Process Target
N/A N/A C:\Windows\system32\tasklist.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\Tqs5MXM8xx.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\tasklist.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 2832 wrote to memory of 4172 N/A C:\Users\Admin\AppData\Local\Temp\b4319210ed63ced7b431ef15430a5a98dadf9601af2ec882d00b48e1aefca6c8.exe C:\Windows\system32\cmd.exe
PID 2832 wrote to memory of 4172 N/A C:\Users\Admin\AppData\Local\Temp\b4319210ed63ced7b431ef15430a5a98dadf9601af2ec882d00b48e1aefca6c8.exe C:\Windows\system32\cmd.exe
PID 4172 wrote to memory of 4388 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\tasklist.exe
PID 4172 wrote to memory of 4388 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\tasklist.exe
PID 2832 wrote to memory of 3720 N/A C:\Users\Admin\AppData\Local\Temp\b4319210ed63ced7b431ef15430a5a98dadf9601af2ec882d00b48e1aefca6c8.exe C:\Windows\system32\cmd.exe
PID 2832 wrote to memory of 3720 N/A C:\Users\Admin\AppData\Local\Temp\b4319210ed63ced7b431ef15430a5a98dadf9601af2ec882d00b48e1aefca6c8.exe C:\Windows\system32\cmd.exe
PID 3720 wrote to memory of 3336 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3720 wrote to memory of 3336 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2832 wrote to memory of 2332 N/A C:\Users\Admin\AppData\Local\Temp\b4319210ed63ced7b431ef15430a5a98dadf9601af2ec882d00b48e1aefca6c8.exe C:\Windows\system32\cmd.exe
PID 2832 wrote to memory of 2332 N/A C:\Users\Admin\AppData\Local\Temp\b4319210ed63ced7b431ef15430a5a98dadf9601af2ec882d00b48e1aefca6c8.exe C:\Windows\system32\cmd.exe
PID 2332 wrote to memory of 824 N/A C:\Windows\system32\cmd.exe C:\Users\Admin\AppData\Local\Temp\Tqs5MXM8xx.exe
PID 2332 wrote to memory of 824 N/A C:\Windows\system32\cmd.exe C:\Users\Admin\AppData\Local\Temp\Tqs5MXM8xx.exe
PID 2332 wrote to memory of 824 N/A C:\Windows\system32\cmd.exe C:\Users\Admin\AppData\Local\Temp\Tqs5MXM8xx.exe
PID 824 wrote to memory of 3156 N/A C:\Users\Admin\AppData\Local\Temp\Tqs5MXM8xx.exe C:\Windows\SysWOW64\openwith.exe
PID 824 wrote to memory of 3156 N/A C:\Users\Admin\AppData\Local\Temp\Tqs5MXM8xx.exe C:\Windows\SysWOW64\openwith.exe
PID 824 wrote to memory of 3156 N/A C:\Users\Admin\AppData\Local\Temp\Tqs5MXM8xx.exe C:\Windows\SysWOW64\openwith.exe
PID 824 wrote to memory of 3156 N/A C:\Users\Admin\AppData\Local\Temp\Tqs5MXM8xx.exe C:\Windows\SysWOW64\openwith.exe
PID 824 wrote to memory of 3156 N/A C:\Users\Admin\AppData\Local\Temp\Tqs5MXM8xx.exe C:\Windows\SysWOW64\openwith.exe

Processes

C:\Windows\system32\sihost.exe

sihost.exe

C:\Users\Admin\AppData\Local\Temp\b4319210ed63ced7b431ef15430a5a98dadf9601af2ec882d00b48e1aefca6c8.exe

"C:\Users\Admin\AppData\Local\Temp\b4319210ed63ced7b431ef15430a5a98dadf9601af2ec882d00b48e1aefca6c8.exe"

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /d /s /c "tasklist"

C:\Windows\system32\tasklist.exe

tasklist

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\Tqs5MXM8xx.exe"

C:\Users\Admin\AppData\Local\Temp\Tqs5MXM8xx.exe

C:\Users\Admin\AppData\Local\Temp\Tqs5MXM8xx.exe

C:\Windows\SysWOW64\openwith.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 26.35.223.20.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
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 75.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 4.173.189.20.in-addr.arpa udp

Files

memory/3336-2-0x00007FFA23A03000-0x00007FFA23A05000-memory.dmp

memory/3336-3-0x000001F5BCB80000-0x000001F5BCBA2000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wvjv4uiu.gx3.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/3336-13-0x00007FFA23A00000-0x00007FFA244C1000-memory.dmp

memory/3336-14-0x00007FFA23A00000-0x00007FFA244C1000-memory.dmp

memory/3336-17-0x00007FFA23A00000-0x00007FFA244C1000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Tqs5MXM8xx.exe

MD5 0ec4b9b5f2c28fbf2492589a344b8664
SHA1 ec46f875687fbddf48290fd117a40750d510c837
SHA256 eb8966926eb86c0b7207bcbeb56a8540c88f3b4c002e8778405fb16c645ef286
SHA512 95e047410b7ba7a8f929e9d9bec1b7da87c863094651f65b5940d7217faa0101316d019e1965f82ee2cdd7d4004b08f2169a5bf5d9e42df57dfe344f4f24e7f2

memory/824-22-0x0000000000400000-0x00000000007F9000-memory.dmp

memory/824-24-0x0000000000400000-0x00000000007F9000-memory.dmp

memory/824-27-0x0000000003710000-0x0000000003B10000-memory.dmp

memory/824-28-0x0000000003710000-0x0000000003B10000-memory.dmp

memory/824-29-0x00007FFA42950000-0x00007FFA42B45000-memory.dmp

memory/824-31-0x0000000075FE0000-0x00000000761F5000-memory.dmp

memory/3156-32-0x00000000009D0000-0x00000000009D9000-memory.dmp

memory/824-34-0x0000000000400000-0x00000000007F9000-memory.dmp

memory/3156-35-0x00000000026E0000-0x0000000002AE0000-memory.dmp

memory/3156-38-0x0000000075FE0000-0x00000000761F5000-memory.dmp

memory/3156-36-0x00007FFA42950000-0x00007FFA42B45000-memory.dmp