Malware Analysis Report

2024-11-30 02:08

Sample ID 240329-b9xejaed9t
Target 859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb
SHA256 859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb
Tags
zgrat rat rhadamanthys stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb

Threat Level: Known bad

The file 859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb was found to be: Known bad.

Malicious Activity Summary

zgrat rat rhadamanthys stealer

Suspicious use of NtCreateUserProcessOtherParentProcess

Detect ZGRat V1

Zgrat family

ZGRat

Rhadamanthys

Detects DLL dropped by Raspberry Robin.

.NET Reactor proctector

Loads dropped DLL

Suspicious use of SetThreadContext

Program crash

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-03-29 01:51

Signatures

Detect ZGRat V1

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

Zgrat family

zgrat

.NET Reactor proctector

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-29 01:51

Reported

2024-03-29 01:56

Platform

win7-20240221-en

Max time kernel

122s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb.exe

"C:\Users\Admin\AppData\Local\Temp\859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2940 -s 548

Network

N/A

Files

memory/2940-0-0x0000000000270000-0x00000000006EC000-memory.dmp

memory/2940-1-0x0000000074620000-0x0000000074D0E000-memory.dmp

memory/2940-2-0x0000000074620000-0x0000000074D0E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-29 01:51

Reported

2024-03-29 01:56

Platform

win10-20240221-en

Max time kernel

192s

Max time network

305s

Command Line

sihost.exe

Signatures

Detect ZGRat V1

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

Detects DLL dropped by Raspberry Robin.

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

Rhadamanthys

stealer rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 4432 created 2508 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe c:\windows\system32\sihost.exe

ZGRat

rat zgrat

.NET Reactor proctector

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4644 set thread context of 4432 N/A C:\Users\Admin\AppData\Local\Temp\859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4644 wrote to memory of 4920 N/A C:\Users\Admin\AppData\Local\Temp\859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe
PID 4644 wrote to memory of 4920 N/A C:\Users\Admin\AppData\Local\Temp\859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe
PID 4644 wrote to memory of 4920 N/A C:\Users\Admin\AppData\Local\Temp\859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe
PID 4644 wrote to memory of 4432 N/A C:\Users\Admin\AppData\Local\Temp\859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe
PID 4644 wrote to memory of 4432 N/A C:\Users\Admin\AppData\Local\Temp\859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe
PID 4644 wrote to memory of 4432 N/A C:\Users\Admin\AppData\Local\Temp\859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe
PID 4644 wrote to memory of 4432 N/A C:\Users\Admin\AppData\Local\Temp\859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe
PID 4644 wrote to memory of 4432 N/A C:\Users\Admin\AppData\Local\Temp\859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe
PID 4644 wrote to memory of 4432 N/A C:\Users\Admin\AppData\Local\Temp\859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe
PID 4644 wrote to memory of 4432 N/A C:\Users\Admin\AppData\Local\Temp\859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe
PID 4644 wrote to memory of 4432 N/A C:\Users\Admin\AppData\Local\Temp\859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe
PID 4644 wrote to memory of 4432 N/A C:\Users\Admin\AppData\Local\Temp\859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe
PID 4644 wrote to memory of 4432 N/A C:\Users\Admin\AppData\Local\Temp\859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe
PID 4644 wrote to memory of 4432 N/A C:\Users\Admin\AppData\Local\Temp\859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe
PID 4432 wrote to memory of 4172 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe C:\Windows\SysWOW64\dialer.exe
PID 4432 wrote to memory of 4172 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe C:\Windows\SysWOW64\dialer.exe
PID 4432 wrote to memory of 4172 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe C:\Windows\SysWOW64\dialer.exe
PID 4432 wrote to memory of 4172 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe C:\Windows\SysWOW64\dialer.exe
PID 4432 wrote to memory of 4172 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe C:\Windows\SysWOW64\dialer.exe

Processes

c:\windows\system32\sihost.exe

sihost.exe

C:\Users\Admin\AppData\Local\Temp\859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb.exe

"C:\Users\Admin\AppData\Local\Temp\859f296afcad7531a5e2ee4b5b8346da0d5ac0ba33700804216aa7365920f7cb.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe

C:\Windows\SysWOW64\dialer.exe

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4432 -s 500

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4432 -s 480

Network

Country Destination Domain Proto
US 8.8.8.8:53 12.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 19.134.221.88.in-addr.arpa udp

Files

memory/4644-0-0x0000000073F80000-0x000000007466E000-memory.dmp

memory/4644-1-0x0000000000860000-0x0000000000CDC000-memory.dmp

memory/4644-2-0x0000000005620000-0x00000000056BC000-memory.dmp

memory/4644-3-0x0000000073F80000-0x000000007466E000-memory.dmp

memory/4644-4-0x00000000057B0000-0x00000000057C0000-memory.dmp

memory/4644-5-0x00000000059C0000-0x0000000005BB8000-memory.dmp

memory/4644-6-0x0000000006CF0000-0x0000000006E82000-memory.dmp

\Users\Admin\AppData\Local\Temp\Protect544cd51a.dll

MD5 544cd51a596619b78e9b54b70088307d
SHA1 4769ddd2dbc1dc44b758964ed0bd231b85880b65
SHA256 dfce2d4d06de6452998b3c5b2dc33eaa6db2bd37810d04e3d02dc931887cfddd
SHA512 f56d8b81022bb132d40aa78596da39b5c212d13b84b5c7d2c576bbf403924f1d22e750de3b09d1be30aea359f1b72c5043b19685fc9bf06d8040bfee16b17719

memory/4644-12-0x00000000057B0000-0x00000000057C0000-memory.dmp

memory/4644-14-0x00000000015C0000-0x00000000015D0000-memory.dmp

memory/4644-15-0x00000000057B0000-0x00000000057C0000-memory.dmp

memory/4644-13-0x00000000057B0000-0x00000000057C0000-memory.dmp

memory/4644-11-0x00000000057B0000-0x00000000057C0000-memory.dmp

memory/4644-16-0x00000000057B0000-0x00000000057C0000-memory.dmp

memory/4644-17-0x00000000071D0000-0x00000000072D0000-memory.dmp

memory/4432-20-0x0000000000400000-0x000000000046D000-memory.dmp

memory/4432-23-0x0000000000400000-0x000000000046D000-memory.dmp

memory/4432-25-0x0000000000400000-0x000000000046D000-memory.dmp

memory/4644-24-0x0000000073F80000-0x000000007466E000-memory.dmp

memory/4644-19-0x00000000071D0000-0x00000000072D0000-memory.dmp

memory/4644-18-0x00000000071D0000-0x00000000072D0000-memory.dmp

memory/4432-26-0x0000000003DF0000-0x00000000041F0000-memory.dmp

memory/4432-28-0x0000000003DF0000-0x00000000041F0000-memory.dmp

memory/4432-27-0x0000000003DF0000-0x00000000041F0000-memory.dmp

memory/4432-29-0x00007FFDFEBC0000-0x00007FFDFED9B000-memory.dmp

memory/4432-30-0x0000000003DF0000-0x00000000041F0000-memory.dmp

memory/4432-32-0x0000000077AD0000-0x0000000077C92000-memory.dmp

memory/4172-33-0x00000000030B0000-0x00000000030B9000-memory.dmp

memory/4172-35-0x0000000004C90000-0x0000000005090000-memory.dmp

memory/4172-36-0x0000000004C90000-0x0000000005090000-memory.dmp

memory/4172-37-0x00007FFDFEBC0000-0x00007FFDFED9B000-memory.dmp

memory/4172-41-0x00007FFDFEBC0000-0x00007FFDFED9B000-memory.dmp

memory/4172-40-0x0000000004C90000-0x0000000005090000-memory.dmp

memory/4172-39-0x0000000077AD0000-0x0000000077C92000-memory.dmp

memory/4172-42-0x0000000004C90000-0x0000000005090000-memory.dmp

memory/4432-43-0x0000000003DF0000-0x00000000041F0000-memory.dmp