Malware Analysis Report

2024-11-15 05:58

Sample ID 240405-ev8e2abh61
Target tmp
SHA256 9d380a3292854ec2522aeef19e219ca54317569a7ef9bf0cf2d48c39d58af05c
Tags
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

9d380a3292854ec2522aeef19e219ca54317569a7ef9bf0cf2d48c39d58af05c

Threat Level: Known bad

The file tmp was found to be: Known bad.

Malicious Activity Summary

rhadamanthys stealer

Rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Suspicious use of SetThreadContext

Unsigned PE

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-05 04:16

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-05 04:16

Reported

2024-04-05 04:19

Platform

win7-20231129-en

Max time kernel

122s

Max time network

123s

Command Line

C:\Windows\Explorer.EXE

Signatures

Rhadamanthys

stealer rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 860 created 1368 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\Explorer.EXE

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3048 set thread context of 860 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\tmp.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3048 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3048 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3048 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3048 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3048 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3048 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3048 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3048 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3048 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3048 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3048 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3048 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3048 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3048 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3048 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\SysWOW64\WerFault.exe
PID 3048 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\SysWOW64\WerFault.exe
PID 3048 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\SysWOW64\WerFault.exe
PID 3048 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\SysWOW64\WerFault.exe
PID 860 wrote to memory of 2636 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\dialer.exe
PID 860 wrote to memory of 2636 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\dialer.exe
PID 860 wrote to memory of 2636 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\dialer.exe
PID 860 wrote to memory of 2636 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\dialer.exe
PID 860 wrote to memory of 2636 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\dialer.exe
PID 860 wrote to memory of 2636 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\dialer.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

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

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

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

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3048 -s 508

C:\Windows\SysWOW64\dialer.exe

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

Network

N/A

Files

memory/3048-0-0x0000000000120000-0x0000000000196000-memory.dmp

memory/3048-1-0x0000000074BF0000-0x00000000752DE000-memory.dmp

memory/3048-4-0x0000000002320000-0x0000000004320000-memory.dmp

memory/860-5-0x0000000000400000-0x000000000046D000-memory.dmp

memory/860-6-0x0000000000400000-0x000000000046D000-memory.dmp

memory/860-10-0x0000000000400000-0x000000000046D000-memory.dmp

memory/860-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/860-9-0x0000000000400000-0x000000000046D000-memory.dmp

memory/860-8-0x0000000000400000-0x000000000046D000-memory.dmp

memory/860-7-0x0000000000400000-0x000000000046D000-memory.dmp

memory/860-13-0x0000000000400000-0x000000000046D000-memory.dmp

memory/860-16-0x0000000000400000-0x000000000046D000-memory.dmp

memory/860-17-0x0000000000400000-0x000000000046D000-memory.dmp

memory/860-18-0x0000000003620000-0x0000000003A20000-memory.dmp

memory/860-19-0x0000000003620000-0x0000000003A20000-memory.dmp

memory/860-20-0x0000000077C10000-0x0000000077DB9000-memory.dmp

memory/860-21-0x0000000003620000-0x0000000003A20000-memory.dmp

memory/860-23-0x0000000077040000-0x0000000077087000-memory.dmp

memory/2636-24-0x0000000000080000-0x0000000000089000-memory.dmp

memory/860-26-0x0000000003620000-0x0000000003A20000-memory.dmp

memory/2636-27-0x0000000001C00000-0x0000000002000000-memory.dmp

memory/2636-28-0x0000000001C00000-0x0000000002000000-memory.dmp

memory/2636-29-0x0000000077C10000-0x0000000077DB9000-memory.dmp

memory/2636-31-0x0000000001C00000-0x0000000002000000-memory.dmp

memory/2636-32-0x0000000077040000-0x0000000077087000-memory.dmp

memory/2636-33-0x0000000077C10000-0x0000000077DB9000-memory.dmp

memory/2636-34-0x0000000001C00000-0x0000000002000000-memory.dmp

memory/3048-35-0x0000000074BF0000-0x00000000752DE000-memory.dmp

memory/3048-36-0x0000000002320000-0x0000000004320000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-05 04:16

Reported

2024-04-05 04:19

Platform

win10v2004-20240226-en

Max time kernel

142s

Max time network

158s

Command Line

sihost.exe

Signatures

Rhadamanthys

stealer rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 1116 created 2652 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\system32\sihost.exe

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1204 set thread context of 1116 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1204 wrote to memory of 1116 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1204 wrote to memory of 1116 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1204 wrote to memory of 1116 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1204 wrote to memory of 1116 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1204 wrote to memory of 1116 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1204 wrote to memory of 1116 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1204 wrote to memory of 1116 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1204 wrote to memory of 1116 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1204 wrote to memory of 1116 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1204 wrote to memory of 1116 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1204 wrote to memory of 1116 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1116 wrote to memory of 3484 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\dialer.exe
PID 1116 wrote to memory of 3484 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\dialer.exe
PID 1116 wrote to memory of 3484 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\dialer.exe
PID 1116 wrote to memory of 3484 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\dialer.exe
PID 1116 wrote to memory of 3484 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\dialer.exe

Processes

C:\Windows\system32\sihost.exe

sihost.exe

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

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

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

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1204 -ip 1204

C:\Windows\SysWOW64\dialer.exe

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1116 -ip 1116

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 592

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1204 -s 868

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1116 -ip 1116

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 596

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4088 --field-trial-handle=2676,i,447940133669489189,1353734109898858672,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 96.136.73.23.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 65.139.73.23.in-addr.arpa udp
GB 142.250.187.202:443 tcp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 137.71.105.51.in-addr.arpa udp

Files

memory/1204-0-0x0000000075310000-0x0000000075AC0000-memory.dmp

memory/1204-1-0x00000000002E0000-0x0000000000356000-memory.dmp

memory/1116-4-0x0000000000400000-0x000000000046D000-memory.dmp

memory/1204-6-0x0000000002770000-0x0000000004770000-memory.dmp

memory/1116-8-0x0000000000400000-0x000000000046D000-memory.dmp

memory/1116-9-0x0000000000400000-0x000000000046D000-memory.dmp

memory/1116-10-0x0000000003C70000-0x0000000004070000-memory.dmp

memory/1116-11-0x0000000003C70000-0x0000000004070000-memory.dmp

memory/1116-12-0x0000000003C70000-0x0000000004070000-memory.dmp

memory/1116-13-0x00007FFCACDB0000-0x00007FFCACFA5000-memory.dmp

memory/1116-14-0x0000000003C70000-0x0000000004070000-memory.dmp

memory/1116-16-0x00000000765F0000-0x0000000076805000-memory.dmp

memory/3484-17-0x00000000001C0000-0x00000000001C9000-memory.dmp

memory/3484-20-0x0000000000AD0000-0x0000000000ED0000-memory.dmp

memory/3484-21-0x00007FFCACDB0000-0x00007FFCACFA5000-memory.dmp

memory/3484-22-0x0000000000AD0000-0x0000000000ED0000-memory.dmp

memory/3484-24-0x00000000765F0000-0x0000000076805000-memory.dmp

memory/3484-25-0x0000000000AD0000-0x0000000000ED0000-memory.dmp

memory/1116-26-0x0000000003C70000-0x0000000004070000-memory.dmp

memory/1204-27-0x0000000075310000-0x0000000075AC0000-memory.dmp